[Event "Pirai do Sul op 25th"]
[Site "Chess.com INT"]
[Date "2020.12.28"]
[Round "10"]
[White "Da Silva, Jackson Bueno"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "C10"]
[WhiteElo "1440"]
[BlackElo "1616"]
[PlyCount "66"]
[EventDate "2020.12.26"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 d5 4. exd5 exd5 5. Nc3 Nf6 6. Bf4 Nc6 7. Bb5 Be7 8. 0-0 0-0 9. Re1 a6 10. Bxc6 bxc6 11. Qd3 c4 12. Qd2 Bf5 13. Re2 Nh5 14. Rae1 Bb4 15. Ne5 Nxf4 16. Qxf4 Qc8 17. Qg3 Bd6 18. Qh4 f6 19. Nf3 Rb8 20. Na4 Rb4 21. b3 cxb3 22. cxb3 c5 23. Nc3 cxd4 24. Nxd5 d3 25. Nxb4 dxe2 26. Rxe2 Qc3 27. Nd5 Qd3 28. Qc4 Qxc4 29. bxc4 Rb8 30. h3 Kf7 31. Nd4 Bd3 32. Rd2 Rb1+ 33. Rd1 Rxd1# 0-1

[Event "Pirai do Sul op 25th"]
[Site "Chess.com INT"]
[Date "2020.12.28"]
[Round "11"]
[White "Fonseca, Jeferson dos Santos"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "1553"]
[BlackElo "1616"]
[PlyCount "48"]
[EventDate "2020.12.26"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. e4 c5 2. Ne2 Nc6 3. g3 Nf6 4. Bg2 d5 5. exd5 Nxd5 6. 0-0 e5 7. Nbc3 Be6 8. d3 Be7 9. f4 f5 10. Kh1 0-0 11. fxe5 Nxe5 12. Nf4 Nxf4 13. Bxf4 Ng6 14. Qe2 Bd7 15. Bxb7 Nxf4 16. Rxf4 Rb8 17. Bd5+ Kh8 18. Bb3 Bg5 19. Rf2 Bc6+ 20. Kg1 Re8 21. Qh5 Be3 22. Raf1 Bxf2+ 23. Rxf2 Re1+ 24. Rf1 Qd4# 0-1

[Event "Pirai do Sul op 25th"]
[Site "Chess.com INT"]
[Date "2020.12.28"]
[Round "9"]
[White "Staron, Douglas Rentz"]
[Black "Da Silva, Jackson Bueno"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "1616"]
[BlackElo "1440"]
[PlyCount "77"]
[EventDate "2020.12.26"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. c4 e5 2. d3 Nc6 3. Nf3 Nf6 4. g3 b6 5. Nc3 Bb7 6. Bg2 Be7 7. Nxe5 Rb8 8. Nxc6 Bxc6 9. e4 0-0 10. 0-0 Ba8 11. Bf4 Rc8 12. Re1 d6 13. d4 c5 14. d5 Bb7 15. Qd2 Nd7 16. Nb5 Ne5 17. Bxe5 dxe5 18. Nxa7 Ra8 19. Nb5 Ba6 20. a4 Bxb5 21. cxb5 Bg5 22. f4 exf4 23. gxf4 Bh4 24. Re3 Qf6 25. Rh3 Qd8 26. e5 Re8 27. Qd3 g6 28. b3 Be7 29. d6 Bf8 30. Bxa8 Qxa8 31. Qf3 Qxf3 32. Rxf3 h5 33. a5 Rb8 34. a6 Bh6 35. a7 Ra8 36. d7 g5 37. f5 g4 38. Rd3 Bg5 39. f6 1-0

[Event "Pirai do Sul op 25th"]
[Site "Chess.com INT"]
[Date "2020.12.28"]
[Round "12"]
[White "Staron, Douglas Rentz"]
[Black "Fonseca, Jeferson dos Santos"]
[Result "0-1"]
[ECO "A23"]
[WhiteElo "1616"]
[BlackElo "1553"]
[PlyCount "100"]
[EventDate "2020.12.26"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 c6 5. Nf3 d6 6. 0-0 Bg4 7. d4 exd4 8. Nxd4 0-0 9. Qd3 Nbd7 10. Bf4 Re8 11. Nb3 Bb6 12. Bxd6 Ba5 13. Nxa5 Qxa5 14. h3 Bh5 15. b4 Qb6 16. Kh2 Ne5 17. Bxe5 Rxe5 18. f4 Re3 19. Qd2 Rd8 20. Qb2 Rde8 21. g4 Bxg4 22. hxg4 Nxg4+ 23. Kh1 R8e6 24. c5 Rh6+ 25. Kg1 Qd8 26. Rf3 Qh4 27. Rd1 Qh2+ 28. Kf1 Rxf3+ 29. exf3 Ne3+ 30. Ke2 Qxg2+ 31. Kxe3 Re6+ 32. Ne4 Rxe4+ 33. Kxe4 f5+ 34. Kxf5 Qxb2 35. Rd8+ Kf7 36. Rd7+ Ke8 37. Rxb7 Qxa2 38. Rb8+ Kd7 39. Rb7+ Kc8 40. Rxg7 Qc2+ 41. Kf6 Qc3+ 42. Kf7 Qxf3 43. Rxh7 Qxf4+ 44. Kg6 Qxb4 45. Rh8+ Kb7 46. Rh7+ Ka6 47. Rh5 Qe4+ 48. Kf6 Kb5 49. Rf5 Qxf5+ 50. Kxf5 Kxc5 0-1

[Event "Pirai do Sul op 25th"]
[Site "Chess.com INT"]
[Date "2020.12.27"]
[Round "7"]
[White "Dos Santos, Gabriel Martins"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "1413"]
[BlackElo "1616"]
[PlyCount "63"]
[EventDate "2020.12.26"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 Nc6 5. Nc3 e5 6. Ndb5 d6 7. e4 Be6 8. Nd5 Bxd5 9. exd5 Ne7 10. Qa4 Qd7 11. Nxd6+ Kd8 12. Nxf7+ Kc8 13. Qxd7+ Kxd7 14. Nxh8 Nf5 15. Nf7 Nd4 16. Bd3 e4 17. Bb1 Rc8 18. b3 Nxd5 19. 0-0 Nf6 20. Bb2 Ne2+ 21. Kh1 Ke6 22. Ng5+ Kf5 23. Bxf6 gxf6 24. Nxe4 Ke5 25. Bc2 Bb4 26. Ng3 Nd4 27. f4+ Ke6 28. Be4 b6 29. Rad1 Bc5 30. Rxd4 Bxd4 31. Bf5+ Kd6 32. Bxc8 1-0

[Event "Pirai do Sul op 25th"]
[Site "Chess.com INT"]
[Date "2020.12.27"]
[Round "8"]
[White "Staron, Douglas Rentz"]
[Black "Dos Santos, Gabriel Martins"]
[Result "1-0"]
[ECO "A51"]
[WhiteElo "1616"]
[BlackElo "1413"]
[PlyCount "121"]
[EventDate "2020.12.26"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 e5 3. d5 Bc5 4. Nc3 0-0 5. Bg5 Bxf2+ 6. Kxf2 Ng4+ 7. Ke1 Qxg5 8. Nf3 Qe7 9. h3 Ne3 10. Qd3 Qc5 11. Ng5 f5 12. b4 Qd4 13. Nf3 Qxd3 14. exd3 Nc2+ 15. Kd2 Nxa1 16. Nb5 Na6 17. Nxe5 d6 18. Nf3 Bd7 19. Nbd4 Nxb4 20. Be2 Nac2 21. Nxc2 Nxc2 22. Kxc2 Rfe8 23. Nd4 c5 24. dxc6 Bxc6 25. Bd1 g6 26. Rg1 Rac8 27. Kc3 a6 28. a4 d5 29. c5 Rb8 30. a5 Bb5 31. Bb3 Rbd8 32. g4 fxg4 33. Rxg4 Kg7 34. Nf5+ Kf6 35. Nd6 Re7 36. Bxd5 Bc6 37. Bc4 Red7 38. Rf4+ Kg7 39. h4 Rf8 40. Rg4 Bf3 41. Rg3 Bc6 42. Be6 Rdd8 43. Bg4 Rf6 44. Re3 Rdxd6 45. cxd6 Rxd6 46. Re7+ Kh6 47. Be6 Bb5 48. d4 Bc6 49. Bg8 Rd7 50. Re5 Rg7 51. Bc4 Rc7 52. d5 Bb5 53. Re4 Rc5 54. d6 Bxc4 55. Rxc4 Rd5 56. Rd4 Rc5+ 57. Kb4 Rc8 58. d7 Rd8 59. Kc5 Kg7 60. Kb6 Kf7 61. Kc7 1-0

[Event "Pirai do Sul op 25th"]
[Site "Chess.com INT"]
[Date "2020.12.27"]
[Round "5"]
[White "Staron, Douglas Rentz"]
[Black "Trupel, Felipe Do Amaral"]
[Result "1-0"]
[ECO "A35"]
[WhiteElo "1616"]
[BlackElo "1637"]
[PlyCount "47"]
[EventDate "2020.12.26"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. Nc3 e5 4. d3 d6 5. g3 f5 6. Bg2 Nf6 7. 0-0 Be7 8. Rb1 0-0 9. a3 b6 10. Ng5 h6 11. Bxc6 hxg5 12. Bxa8 f4 13. e3 Bh3 14. Bg2 Qd7 15. Nd5 Nxd5 16. cxd5 Bxg2 17. Kxg2 f3+ 18. Kh1 Qh3 19. Rg1 g4 20. Qf1 Qh5 21. h3 gxh3 22. Kh2 a6 23. b4 Kf7 24. bxc5 1-0

[Event "Pirai do Sul op 25th"]
[Site "Chess.com INT"]
[Date "2020.12.27"]
[Round "6"]
[White "Trupel, Felipe Do Amaral"]
[Black "Staron, Douglas Rentz"]
[Result "1/2-1/2"]
[ECO "B21"]
[WhiteElo "1637"]
[BlackElo "1616"]
[PlyCount "141"]
[EventDate "2020.12.26"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. e4 c5 2. f4 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. Nc3 Nf6 8. Nf3 Qb6 9. Qxb6 axb6 10. e5 Nd5 11. Bd2 g6 12. a3 Bg7 13. 0-0-0 0-0 14. Nxd5 Bxd5 15. Bc3 Be6 16. Rhe1 Rfc8 17. Nd4 Bg4 18. Rd2 Bh6 19. g3 Rc5 20. Nb3 Rc6 21. Nd4 Rc4 22. e6 fxe6 23. Nxe6 Kf7 24. Ng5+ Bxg5 25. fxg5 Rxc3 26. bxc3 Rxa3 27. Kb2 Ra5 28. Rf2+ Ke8 29. Ref1 Rxg5 30. Rf8+ Kd7 31. Rb8 Rb5+ 32. Kc1 Kc7 33. Rff8 Re5 34. Rbe8 h5 35. Rf7 Kd7 36. Rb8 Kc6 37. Rg7 Re1+ 38. Kb2 Bf5 39. h3 Rg1 40. Rf8 Rg2 41. g4 hxg4 42. hxg4 Rxg4 43. Rxe7 Rg2 44. Rff7 Rxc2+ 45. Kb3 Rc1 46. Kc4 b5+ 47. Kd4 Rd1+ 48. Ke3 Rd3+ 49. Kf4 Rxc3 50. Rc7+ Kd5 51. Rxc3 b4 52. Rc8 b3 53. Rxb7 Bxc8 54. Rxb3 Bf5 55. Rb5+ Kc6 56. Ra5 d5 57. Ke5 Be4 58. Ra6+ Kc5 59. Ra5+ Kc6 60. Ra6+ Kb5 61. Rd6 Kc4 62. Rc6+ Kb5 63. Rd6 Kc5 64. Rd7 Kc6 65. Rd6+ Kc5 66. Rd7 Kc4 67. Rc7+ Kd3 68. Rd7 Ke3 69. Kf6 Kf4 70. Rxd5 Bxd5 71. Kxg6 1/2-1/2

[Event "Pirai do Sul op 25th"]
[Site "Chess.com INT"]
[Date "2020.12.26"]
[Round "4"]
[White "De Ramos, Mitzi Vedan"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1362"]
[BlackElo "1616"]
[PlyCount "59"]
[EventDate "2020.12.26"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. e4 c5 2. c3 e6 3. d4 d5 4. e5 cxd4 5. cxd4 Nc6 6. Nf3 Bb4+ 7. Nc3 Nge7 8. Bd3 0-0 9. 0-0 f5 10. exf6 Rxf6 11. a3 Ba5 12. Re1 Qf8 13. Bg5 Rxf3 14. Qxf3 Qxf3 15. gxf3 Nxd4 16. Bxe7 Nxf3+ 17. Kg2 Nxe1+ 18. Rxe1 Kf7 19. Bd6 d4 20. b4 Bb6 21. Ne4 e5 22. Bxe5 Bd7 23. Bg3 h6 24. Bc4+ Kg6 25. Nc5 Bc6+ 26. Kf1 Rd8 27. Re6+ Kf5 28. Bd3+ Kg4 29. h3+ Kxh3 30. Bf5# 1-0

[Event "Pirai do Sul op 25th"]
[Site "Chess.com INT"]
[Date "2020.12.26"]
[Round "1"]
[White "Goncalves, Evandro Jose"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "1190"]
[BlackElo "1616"]
[PlyCount "84"]
[EventDate "2020.12.26"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 c5 3. d5 d6 4. c4 g6 5. Nc3 Bg7 6. e4 0-0 7. e5 dxe5 8. Bxe5 Bf5 9. Nf3 Nbd7 10. Bd3 Bxd3 11. Qxd3 Nxe5 12. Nxe5 a6 13. a4 Qd6 14. Nf3 e5 15. Ne4 Nxe4 16. Qxe4 f5 17. Qc2 Rab8 18. 0-0 b5 19. axb5 axb5 20. b3 e4 21. Ng5 bxc4 22. Qxc4 Bxa1 23. Rxa1 Rb4 24. Qc3 Qf6 25. Qxf6 Rxf6 26. Ra8+ Rf8 27. Rxf8+ Kxf8 28. Ne6+ Ke7 29. Nxc5 Kd6 30. Na6 Rb6 31. f3 Rxa6 32. fxe4 fxe4 33. Kf2 Kc5 34. Ke3 Kxd5 35. b4 Ra3+ 36. Kf2 e3+ 37. Ke2 Ke4 38. b5 Ra2+ 39. Kf1 Kd3 40. g3 e2+ 41. Ke1 Ke3 42. b6 Ra1# 0-1

[Event "Pirai do Sul op 25th"]
[Site "Chess.com INT"]
[Date "2020.12.26"]
[Round "3"]
[White "Staron, Douglas Rentz"]
[Black "De Ramos, Mitzi Vedan"]
[Result "1/2-1/2"]
[ECO "A29"]
[WhiteElo "1616"]
[BlackElo "1362"]
[PlyCount "262"]
[EventDate "2020.12.26"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Bc5 3. g3 Nf6 4. Bg2 d6 5. Nf3 Nc6 6. 0-0 Be6 7. d3 0-0 8. a3 h6 9. b4 Bb6 10. Rb1 a5 11. b5 Nd4 12. e3 Nf5 13. Qe2 c6 14. Rd1 a4 15. d4 exd4 16. Nxd4 Nxd4 17. exd4 Re8 18. Qd3 Bg4 19. Rf1 Bh5 20. Rb4 c5 21. dxc5 Bxc5 22. Rxa4 Rxa4 23. Nxa4 Be2 24. Qf5 Bxf1 25. Bxf1 Qc8 26. Qf3 Re1 27. Bd2 Ra1 28. Nxc5 Qxc5 29. Qxb7 Qxa3 30. Qc8+ Kh7 31. Qf5+ Kh8 32. Kg2 Qb2 33. Be3 Qb1 34. Qxb1 Rxb1 35. b6 Nd7 36. Bd3 Rb3 37. Bc2 Rb2 38. Bd3 Nxb6 39. Bd4 Rd2 40. Bxb6 Rxd3 41. c5 dxc5 42. Bxc5 Kh7 43. h4 Kg6 44. Be3 h5 45. Kf3 Kf5 46. Ke2 Rb3 47. Kf3 g6 48. Kg2 Ke4 49. Bc5 Rb2 50. Be7 Rc2 51. Bd8 Kf5 52. Bb6 Ke4 53. Ba7 Kd3 54. Bb6 Ke2 55. Ba7 Rc6 56. Bd4 Rd6 57. Be3 Rf6 58. Bd4 Rf5 59. Be3 Kd3 60. Bb6 Ke4 61. Be3 Rf3 62. Bc5 Rc3 63. Bb6 Rc2 64. Bd8 Kf5 65. Bg5 f6 66. Be3 Re2 67. Kf3 Rc2 68. Kg2 Kg4 69. Bd4 Rc6 70. Be3 g5 71. hxg5 fxg5 72. Bd4 h4 73. gxh4 gxh4 74. Be5 Rc2 75. Bd6 h3+ 76. Kg1 Kf3 77. Bg3 Kg4 78. Kh2 Re2 79. Kg1 Re1+ 80. Kh2 Rf1 81. Bc7 Rxf2+ 82. Kh1 Kf3 83. Bd6 Rd2 84. Bc7 Re2 85. Bd6 Ke4 86. Bc7 Kd5 87. Bb8 Kc6 88. Bf4 Kd7 89. Bb8 Ke6 90. Bf4 Kf5 91. Bb8 Kg4 92. Bc7 Kh4 93. Bd6 Kh5 94. Bc7 Rc2 95. Bd6 Kg6 96. Be5 Kf5 97. Bd6 Ke6 98. Bf4 Kd5 99. Bb8 Kc4 100. Bd6 Kb3 101. Be5 Ka2 102. Bf4 Kb1 103. Be5 Kc1 104. Bf4+ Kd1 105. Be5 Ke1 106. Bd6 Kf1 107. Bb8 Rg2 108. Bd6 Rg6 109. Bc7 Rg2 110. Be5 Ke2 111. Bf4 Kf3 112. Bc7 Kg4 113. Be5 Re2 114. Bd6 Kf3 115. Bc7 Re6 116. Bb8 Re8 117. Bc7 Rg8 118. Bd6 Rg6 119. Be5 Kf2 120. Bf4 Rg2 121. Bc7 Kf1 122. Bb6 Ke1 123. Bc7 Kd1 124. Be5 Ke2 125. Bd4 Kd3 126. Be3 Ke4 127. Bd4 Rc2 128. Ba7 Rg2 129. Bd4 Kf3 130. Be5 Rg5 131. Bc7 Rh5 1/2-1/2

[Event "Pirai do Sul op 25th"]
[Site "Chess.com INT"]
[Date "2020.12.26"]
[Round "2"]
[White "Staron, Douglas Rentz"]
[Black "Goncalves, Evandro Jose"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1616"]
[BlackElo "1190"]
[PlyCount "120"]
[EventDate "2020.12.26"]
[EventType "swiss"]
[EventRounds "12"]
[EventCountry "BRA"]
[SourceTitle "CBM 200 Extra"]
[Source "ChessBase"]
[SourceDate "2021.03.31"]
[SourceVersion "1"]
[SourceVersionDate "2021.03.31"]
[SourceQuality "1"]

1. c4 c6 2. d4 Nf6 3. Nc3 d5 4. Nf3 Bf5 5. Bf4 e6 6. e3 Bd6 7. Bxd6 Qxd6 8. cxd5 Nxd5 9. Be2 Nd7 10. 0-0 0-0 11. Ne1 N7f6 12. Qd2 Nxc3 13. bxc3 Ne4 14. Qb2 b6 15. f3 Nf6 16. f4 Be4 17. Nf3 c5 18. Ne5 Nd7 19. Rad1 Nxe5 20. fxe5 Qc6 21. Bf3 Bxf3 22. Rxf3 Rad8 23. Rh3 Qe4 24. Qf2 cxd4 25. exd4 Qxe5 26. Re1 Qf5 27. Rf3 Qg6 28. Qh4 h6 29. Rg3 Qh7 30. Rf1 g5 31. Qh5 Qg6 32. Qe2 f5 33. h4 g4 34. Qe5 Qf6 35. Qc7 Rf7 36. Qc6 Qxh4 37. Rff3 Qe7 38. Re3 Rd6 39. Qc8+ Rf8 40. Qc4 h5 41. Re5 Qd7 42. Rge3 Rc8 43. Qb3 Re8 44. g3 Re7 45. Kg2 Qc6+ 46. Kh2 Kf7 47. c4 Rxd4 48. Qc3 Qxc4 49. Qe1 Qxa2+ 50. Kh1 Qc4 51. Rc3 Rd1 52. Qxd1 Qxc3 53. Qe2 Qc6+ 54. Kh2 Rd7 55. Qe3 Qd6 56. Qg5 Qd2+ 57. Qxd2 Rxd2+ 58. Kg1 Kf6 59. Rb5 Kg5 60. Kf1 h4 0-1

[Event "Caioba Copel op 5th"]
[Site "Caioba"]
[Date "2019.09.17"]
[Round "4"]
[White "Juliatto, Clara Machado"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "B24"]
[WhiteElo "1640"]
[BlackElo "1821"]
[PlyCount "72"]
[EventDate "2019.08.15"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 e6 4. Bg2 Nge7 5. d3 d5 6. f4 dxe4 7. dxe4 Qxd1+ 8. Kxd1 Bd7 9. Be3 Nd4 10. e5 Bc6 11. Ne4 Nef5 12. Bf2 0-0-0 13. Kc1 Nh6 14. c3 Ng4 15. Nh3 Nb5 16. Bf3 f5 17. Neg5 Nxf2 18. Nxf2 Bxf3 19. Nxf3 c4 20. Ng5 Bc5 21. Nd1 Rhe8 22. Nxh7 Rd3 23. Ng5 Nc7 24. Kc2 Red8 25. b4 Rd2+ 26. Kc1 Be7 27. Nf3 R2d3 28. Ne1 Rxd1+ 29. Kb2 R1d2+ 30. Nc2 Rf2 31. Raf1 Rdd2 32. Rxf2 Rxf2 33. a4 Nd5 34. Kc1 Nxc3 35. Ne3 Ra2 36. Re1 Bxb4 0-1

[Event "Caioba Copel op 5th"]
[Site "Caioba"]
[Date "2019.08.16"]
[Round "2"]
[White "Bernardes, Roberto Carlos Stru"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "1591"]
[BlackElo "1821"]
[PlyCount "48"]
[EventDate "2019.08.15"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6 4. e3 g6 5. Bd3 Bg7 6. Ne2 0-0 7. 0-0 f5 8. Nd2 b6 9. Nb3 Nd7 10. c3 c5 11. dxc5 bxc5 12. Bb5 Nf6 13. Bc6 Rb8 14. Nf4 c4 15. Nd4 Qd6 16. Rb1 g5 17. Nfe2 Ng4 18. g3 Qh6 19. h4 gxh4 20. Kg2 hxg3 21. Rh1 Qd6 22. Ba4 gxf2 23. Rh3 Qg6 24. Kf1 Be5 0-1

[Event "Caioba Copel op 5th"]
[Site "Caioba"]
[Date "2019.08.16"]
[Round "3"]
[White "Staron, Douglas Rentz"]
[Black "Brusamolin, Valerio"]
[Result "0-1"]
[ECO "D13"]
[WhiteElo "1821"]
[BlackElo "1924"]
[PlyCount "66"]
[EventDate "2019.08.15"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 c6 3. Nc3 d5 4. Nf3 Nbd7 5. cxd5 cxd5 6. g3 e6 7. Bf4 Be7 8. Bg2 0-0 9. 0-0 Nh5 10. Bd2 f5 11. Rc1 a6 12. e3 Nhf6 13. Qb3 b5 14. Ne5 Nb6 15. Ne2 Bd7 16. Ba5 Qb8 17. Nc6 Bxc6 18. Rxc6 Nc4 19. Bb4 Bxb4 20. Qxb4 Re8 21. Nf4 a5 22. Qc3 Kf7 23. b3 b4 24. Qd3 Nd6 25. Rfc1 Nb5 26. R1c5 Nc3 27. Rc7+ Kg8 28. Nxe6 Rxe6 29. Qxf5 Qe8 30. Bh3 Rd6 31. Qg5 Qf8 32. Rb7 Nfe4 33. Qf4 Ne2+ 0-1

[Event "Paranaense-ch U20"]
[Site "Pirai do Sul"]
[Date "2019.07.14"]
[Round "6.1"]
[White "Da Silva, Matheus Lopes"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1620"]
[BlackElo "1823"]
[PlyCount "66"]
[EventDate "2019.07.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 e6 3. Nf3 d5 4. exd5 exd5 5. Bb5+ Nc6 6. 0-0 Be7 7. Re1 Nf6 8. Qe2 a6 9. Bxc6+ bxc6 10. d3 Ra7 11. Bg5 0-0 12. h3 h6 13. Bh4 Be6 14. Ne5 Qc8 15. Ng6 Re8 16. Nxe7+ Raxe7 17. Qd2 Kh7 18. Ne2 Rg8 19. Bxf6 gxf6 20. Kh2 Ree8 21. Qc3 Qb8+ 22. g3 d4 23. Qxc5 Rg5 24. Qxd4 c5 25. Qf4 Qc8 26. h4 Rf5 27. Qd2 Rxf2+ 28. Kg1 Rf5 29. Nf4 Rg8 30. Kh2 Qc7 31. Rg1 Rg4 32. Kh3 Rfxf4 33. gxf4 Rxg1+ 0-1

[Event "Paranaense-ch U20"]
[Site "Pirai do Sul"]
[Date "2019.07.14"]
[Round "5.2"]
[White "Fraga, Heitor Carneiro"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1761"]
[BlackElo "1823"]
[PlyCount "62"]
[EventDate "2019.07.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. c3 Nc6 5. e3 e6 6. Nbd2 Be7 7. Be2 0-0 8. 0-0 a6 9. h3 b5 10. dxc5 Bxc5 11. Nb3 Bb6 12. Nbd4 Bb7 13. Ne5 Nxe5 14. Bxe5 Ne8 15. Bg4 Bc7 16. Bxc7 Qxc7 17. Qf3 Qe7 18. Qd1 f5 19. Bf3 Kh8 20. a4 e5 21. Nc2 e4 22. Be2 bxa4 23. Nb4 Nc7 24. Qxa4 f4 25. exf4 Rxf4 26. Qd1 Qf6 27. Qe1 Rf8 28. Bg4 Qb6 29. Qd2 a5 30. Na2 Ba6 31. Be2 Rxf2 0-1

[Event "Paranaense-ch U20"]
[Site "Pirai do Sul"]
[Date "2019.07.13"]
[Round "3.2"]
[White "Mainardes, Christian Junior"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "B78"]
[WhiteElo "1732"]
[BlackElo "1823"]
[PlyCount "71"]
[EventDate "2019.07.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Bc4 Nc6 9. Qd2 Bd7 10. 0-0-0 Ne5 11. Bb3 a6 12. Bh6 Rc8 13. Bxg7 Kxg7 14. h4 Nc4 15. Bxc4 Rxc4 16. g4 Qa5 17. a3 Rfc8 18. Nb3 Qc7 19. h5 b5 20. Kb1 Rxc3 21. bxc3 a5 22. hxg6 fxg6 23. Qh6+ Kg8 24. g5 Nh5 25. Rxh5 gxh5 26. g6 hxg6 27. Qxg6+ Kf8 28. Qh6+ Ke8 29. Qxh5+ Kf8 30. Qh8+ Kf7 31. Qh7+ Kf8 32. Rg1 Qc4 33. Qh8+ Kf7 34. Rg7+ Ke6 35. Qh5 Rf8 36. Nd4+ 1-0

[Event "Paranaense-ch U20"]
[Site "Pirai do Sul"]
[Date "2019.07.13"]
[Round "4.4"]
[White "Staron, Douglas Rentz"]
[Black "Colaco, Willian Wagner Soar"]
[Result "1-0"]
[ECO "D06"]
[WhiteElo "1823"]
[BlackElo "1589"]
[PlyCount "59"]
[EventDate "2019.07.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 d5 3. cxd5 Qxd5 4. Nc3 Qa5 5. Bd2 c6 6. Nf3 g6 7. e4 Qd8 8. Bc4 Bg4 9. Qb3 Qb6 10. Bxf7+ Kd8 11. h3 Qxb3 12. Bxb3 Bxf3 13. gxf3 Nbd7 14. e5 Ne8 15. Ne4 Bg7 16. Ng5 Kc8 17. Bb4 Nc7 18. Bxe7 Re8 19. Bb4 a5 20. Bd2 Nxe5 21. dxe5 Bxe5 22. Ne4 Bxb2 23. Rb1 Be5 24. a4 Nd5 25. Kf1 Nb4 26. Kg1 Nd3 27. Bc4 Nf4 28. Bxf4 Bxf4 29. Re1 Be5 30. Nd6+ 1-0

[Event "Paranaense-ch U20"]
[Site "Pirai do Sul"]
[Date "2019.07.12"]
[Round "2.3"]
[White "Staron, Douglas Rentz"]
[Black "Mascarello, Lucas Landoski"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "1823"]
[BlackElo "1312"]
[PlyCount "77"]
[EventDate "2019.07.12"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 c6 2. d4 d5 3. Nc3 Nf6 4. Nf3 dxc4 5. e4 b5 6. a3 Qa5 7. Bd2 e6 8. e5 Nfd7 9. g3 Qc7 10. Bg2 Bb7 11. 0-0 a6 12. Re1 c5 13. Be3 cxd4 14. Bxd4 Nc6 15. Qe2 Nxd4 16. Nxd4 Bxg2 17. Kxg2 Bc5 18. Rad1 Qb7+ 19. Kg1 0-0 20. Qg4 Rfd8 21. Qf4 Nf8 22. Re4 Ng6 23. Qg4 Bxd4 24. Rexd4 Rxd4 25. Qxd4 Qc7 26. f4 Ra7 27. Ne4 Nf8 28. h4 g6 29. h5 Nd7 30. Kg2 Kf8 31. hxg6 hxg6 32. Rh1 Qb6 33. Qd1 Nc5 34. Nxc5 Qc6+ 35. Kh3 Qxc5 36. Qd8+ Kg7 37. Kg4 f5+ 38. exf6+ Kf7 39. Rh7# 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.05"]
[Round "9"]
[White "Staron, Douglas Rentz"]
[Black "Sato, Leticia Miho"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "1859"]
[BlackElo "1595"]
[PlyCount "57"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. d3 Nc6 7. Nf3 Be7 8. 0-0 0-0 9. Be3 Be6 10. Qd2 h6 11. Rfc1 f5 12. Nb5 Nd5 13. Bc5 a6 14. Na3 Qd7 15. Bxe7 Qxe7 16. Rxc6 bxc6 17. Nxe5 Qf6 18. Nxc6 f4 19. Rf1 Kh8 20. Nc4 Rae8 21. N6e5 Qg5 22. Qa5 Nf6 23. gxf4 Qh5 24. Bf3 Ng4 25. Nxg4 Qg6 26. Nce5 Qf5 27. Be4 Qh5 28. Ng6+ Kg8 29. Qxh5 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.04"]
[Round "8"]
[White "Raimundo, Airton Carlos Nunes"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "B25"]
[WhiteElo "2057"]
[BlackElo "1859"]
[PlyCount "55"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. f4 d6 6. Nf3 Nf6 7. 0-0 0-0 8. d3 Be6 9. h3 a6 10. Be3 Qc8 11. g4 Bxg4 12. hxg4 Nxg4 13. Bd2 Nd4 14. Nd5 Qe8 15. c3 Nc6 16. Bh3 Nh6 17. Qe1 e6 18. Ne3 f5 19. Ng5 Qe7 20. Qh4 Rad8 21. Rae1 Qf6 22. exf5 gxf5 23. Nxf5 Qg6 24. Nxg7 Qxg7 25. Bxe6+ Kh8 26. f5 Nf7 27. Kh1 Nh6 28. Nxh7 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.04"]
[Round "7"]
[White "Staron, Douglas Rentz"]
[Black "Szuba, Joao Gabriel Muniz"]
[Result "1-0"]
[ECO "E32"]
[WhiteElo "1859"]
[BlackElo "1531"]
[PlyCount "73"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. c4 e6 2. d4 Nf6 3. Nc3 Bb4 4. Qc2 0-0 5. e4 d5 6. e5 Ne4 7. Bd3 f5 8. Nf3 c6 9. Bd2 Be7 10. 0-0-0 Na6 11. a3 Nc7 12. Rdf1 Bd7 13. Ne1 b5 14. c5 a5 15. Ne2 a4 16. f3 Nxd2 17. Qxd2 Na6 18. Nc2 Bxc5 19. dxc5 Nxc5 20. Ned4 Nxd3+ 21. Qxd3 c5 22. Ne2 Qb8 23. f4 b4 24. Rf3 Rc8 25. Qd2 Ra7 26. Kb1 bxa3 27. Nxa3 Rb7 28. Rc1 d4 29. Nc4 Rb3 30. Rxb3 axb3 31. Na3 Bc6 32. Ka1 Qa7 33. Qd3 Bd5 34. Nxd4 c4 35. Qc3 Rc5 36. Nxb3 Rb5 37. Nd2 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.03"]
[Round "6"]
[White "Dos Santos, Marcos Paulo"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "B78"]
[WhiteElo "1563"]
[BlackElo "1859"]
[PlyCount "46"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 0-0 8. Bc4 Nc6 9. Bb3 Bd7 10. Qd2 Qa5 11. 0-0-0 Rac8 12. g4 Ne5 13. h4 Nc4 14. Bxc4 Rxc4 15. Nde2 Rfc8 16. Bh6 Bh8 17. g5 Nh5 18. Qd5 b5 19. Nd4 Bxd4 20. Rxd4 Rxc3 21. bxc3 Qxc3 22. Rh2 Be6 23. Qb7 Qa1+ 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.03"]
[Round "5"]
[White "Staron, Douglas Rentz"]
[Black "Tonette, Janaine Gusmao"]
[Result "0-1"]
[ECO "A68"]
[WhiteElo "1859"]
[BlackElo "1540"]
[PlyCount "78"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bd3 0-0 9. Nf3 b6 10. Qe2 Re8 11. 0-0 Bb7 12. Qc2 Na6 13. a3 Nc7 14. h3 a6 15. Be3 b5 16. Bf2 Rc8 17. Bh4 Qd7 18. Rae1 Nh5 19. f5 c4 20. Be2 Nf4 21. Ng5 Nxe2+ 22. Rxe2 f6 23. Nxh7 Kxh7 24. fxg6+ Kg8 25. Bxf6 Rf8 26. Ref2 Bxf6 27. Rxf6 Rxf6 28. Rxf6 Qg7 29. Rf4 Rf8 30. Ne2 Rxf4 31. Nxf4 Qd4+ 32. Kh2 Ne8 33. Kg3 Qe3+ 34. Kg4 Nf6+ 35. Kf5 Bc8+ 36. Ne6 Bxe6+ 37. dxe6 Kg7 38. Qc3 Qxe4+ 39. Kg5 Qxg2+ 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.02"]
[Round "4"]
[White "Jabbar, Toyfeeq"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "A69"]
[WhiteElo "2182"]
[BlackElo "1859"]
[PlyCount "69"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Nf3 0-0 9. Be2 Re8 10. e5 dxe5 11. fxe5 Ng4 12. Bg5 Qa5 13. 0-0 Nxe5 14. d6 c4 15. Qd5 Qb6+ 16. Kh1 Ng4 17. Bxc4 Be6 18. Qb5 Nd7 19. Bxe6 Rxe6 20. Qxd7 Bxc3 21. bxc3 Nf2+ 22. Rxf2 Qxf2 23. Qxb7 Rae8 24. Be7 Re2 25. Rg1 Qc5 26. d7 R2xe7 27. dxe8Q+ Rxe8 28. Qb4 Qf2 29. a4 h5 30. Qd4 Qb2 31. Ne5 Qe2 32. Nd7 Re6 33. Nf6+ Kf8 34. Nd5 Kg8 35. Nf4 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.02"]
[Round "3"]
[White "Staron, Douglas Rentz"]
[Black "Fanckin, Murilo"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "1859"]
[PlyCount "32"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. c4 f5 2. d4 Nf6 3. Nc3 e6 4. Nf3 c6 5. Bf4 d5 6. e3 Ne4 7. h3 Bd6 8. Bxd6 Qxd6 9. Ne5 0-0 10. Qc2 Qd8 11. 0-0-0 Bd7 12. g4 Be8 13. Bd3 Nxc3 14. Qxc3 Nd7 15. Qc2 Nxe5 16. dxe5 c5 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.01"]
[Round "2"]
[White "Delgado, Lidio Dias"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2188"]
[BlackElo "1859"]
[PlyCount "45"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nc3 g6 5. cxd5 cxd5 6. Bf4 Bd7 7. e3 a6 8. Bd3 Bg7 9. 0-0 0-0 10. Qb3 Bc6 11. h3 Nbd7 12. a4 Rc8 13. Rfc1 Re8 14. Bh2 Nb6 15. Ne5 e6 16. a5 Nc4 17. Nxc6 Rxc6 18. Qxb7 Nxa5 19. Rxa5 Rxc3 20. Rxc3 Qxa5 21. Qxa6 Qxa6 22. Bxa6 Rb8 23. Bxb8 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2018.08.01"]
[Round "1"]
[White "Staron, Douglas Rentz"]
[Black "Godoy, Maria Eduarda Nasci"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "1859"]
[PlyCount "53"]
[EventDate "2018.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "CBM 186 Extra"]
[Source "ChessBase"]
[SourceDate "2018.08.24"]
[SourceVersion "1"]
[SourceVersionDate "2018.08.24"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 Bb4 4. Bg2 Bxc3 5. bxc3 d6 6. d3 Nf6 7. Nf3 0-0 8. 0-0 Bg4 9. h3 Bxf3 10. Bxf3 Qe8 11. Qc2 e4 12. dxe4 Ne7 13. Be3 Rd8 14. c5 a5 15. cxd6 Rxd6 16. e5 Nd7 17. exd6 cxd6 18. Rfd1 Qc8 19. Rxd6 Qc7 20. Rad1 Rd8 21. Bb6 Qxb6 22. Rxb6 Kh8 23. Rxb7 Re8 24. Rdxd7 Ng8 25. Rxf7 Rf8 26. Rxg7 Ne7 27. Qxh7# 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2017.10.01"]
[Round "7"]
[White "Staron, Douglas Rentz"]
[Black "Prol Medeiros, Horacio"]
[Result "1-0"]
[ECO "D06"]
[WhiteElo "1737"]
[BlackElo "2036"]
[PlyCount "25"]
[EventDate "2017.09.28"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 d5 3. cxd5 Qxd5 4. Nc3 Qa5 5. Bd2 e6 6. e4 Qb6 7. Nf3 Bd7 8. Qc2 Nc6 9. Rd1 Nxd4 10. Nxd4 Qxd4 11. Nb5 Bxb5 12. Bxb5+ Nd7 13. Bc3 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2017.10.01"]
[Round "8"]
[White "Vieira, Jose Renato Braga S"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "A70"]
[WhiteElo "1955"]
[BlackElo "1737"]
[PlyCount "48"]
[EventDate "2017.09.28"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "EXT 2020"]
[Source "ChessBase"]
[SourceDate "2019.10.17"]
[SourceVersion "1"]
[SourceVersionDate "2019.10.17"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Bb5+ Bd7 9. Bd3 a6 10. a4 0-0 11. 0-0 Bg4 12. h3 Bxf3 13. Qxf3 Nbd7 14. Qg3 Ne5 15. Be2 Re8 16. f4 Ned7 17. f5 Nxe4 18. Nxe4 Rxe4 19. fxg6 Rxe2 20. gxh7+ Kh8 21. Rxf7 Bd4+ 22. Kh2 Qe8 23. Qg8+ Qxg8 24. hxg8Q+ Rxg8 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2017.09.30"]
[Round "6"]
[White "Das Chagas, David Ferreira"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "1968"]
[BlackElo "1737"]
[PlyCount "55"]
[EventDate "2017.09.28"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. Bb5 a6 4. Bxc6 bxc6 5. f4 e6 6. Nf3 d5 7. d3 g6 8. 0-0 Bg7 9. Qe1 Ne7 10. Kh1 Qc7 11. Rb1 0-0 12. Na4 Qa7 13. Be3 d4 14. Bd2 Re8 15. b3 f6 16. Qh4 f5 17. Nb2 Qd7 18. Nc4 Rb8 19. Ng5 h6 20. Nf3 Bb7 21. Nfe5 Bxe5 22. Nxe5 Qc7 23. Qxh6 Nc8 24. Qxg6+ Kf8 25. Qf6+ Kg8 26. Rf3 Re7 27. Rg3+ Rg7 28. Qxe6+ 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2017.09.30"]
[Round "5"]
[White "Staron, Douglas Rentz"]
[Black "Madeira, Wagner Martins"]
[Result "0-1"]
[ECO "E90"]
[WhiteElo "1737"]
[BlackElo "2167"]
[PlyCount "74"]
[EventDate "2017.09.28"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Bd3 Bg4 7. h3 Bxf3 8. Qxf3 Nc6 9. Qe3 Nd7 10. Ne2 e5 11. d5 Nd4 12. 0-0 f5 13. f4 fxe4 14. Bxe4 Nc5 15. Nxd4 exd4 16. Qf3 Nxe4 17. Qxe4 Re8 18. Qd3 Qe7 19. Bd2 Qe2 20. Rf3 c6 21. dxc6 bxc6 22. Re1 Qxd3 23. Rxd3 Rxe1+ 24. Bxe1 Rb8 25. b4 Kf7 26. a4 a6 27. Kf2 Ke6 28. Kf3 c5 29. Rb3 d5 30. cxd5+ Kxd5 31. Ke2 Kc4 32. Rb1 d3+ 33. Kd1 cxb4 34. Rc1+ Bc3 35. Bd2 Re8 36. g3 Re2 37. Rc2 Rg2 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2017.09.29"]
[Round "4"]
[White "Mendes, Rodrigo Machado"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "2015"]
[BlackElo "1737"]
[PlyCount "66"]
[EventDate "2017.09.28"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. c4 e5 2. g3 Nf6 3. Nc3 Nc6 4. Bg2 Bc5 5. a3 a5 6. Nf3 d6 7. 0-0 0-0 8. d3 Be6 9. Rb1 Qd7 10. Bg5 Ne8 11. Re1 f6 12. Bd2 Bh3 13. Bh1 f5 14. Ng5 f4 15. Nxh3 Qxh3 16. Bg2 Bxf2+ 17. Kh1 Qh6 18. gxf4 Bxe1 19. Qxe1 exf4 20. Nd5 Ne5 21. Qf1 Ng6 22. Qg1 c6 23. Nb6 Rd8 24. Bxa5 Nf6 25. Bc3 Rde8 26. Re1 Qh4 27. Qd4 Ne5 28. Qxd6 Neg4 29. h3 f3 30. Bxf3 Qxh3+ 31. Kg1 Nh5 32. Rf1 Ng3 33. Rf2 Rxf3 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2017.09.29"]
[Round "3"]
[White "Staron, Douglas Rentz"]
[Black "Okamura, Milton Kasuo"]
[Result "1-0"]
[ECO "A22"]
[WhiteElo "1737"]
[BlackElo "2069"]
[PlyCount "24"]
[EventDate "2017.09.28"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. Nxd5 Nxd5 5. Bg2 Nb6 6. d3 Be7 7. Nf3 Nc6 8. 0-0 0-0 9. a3 Be6 10. Be3 f6 11. Rc1 Nd4 12. b4 c6 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2017.09.28"]
[Round "2"]
[White "Ferreira, Julia Cristine"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "B38"]
[WhiteElo "1327"]
[BlackElo "1737"]
[PlyCount "124"]
[EventDate "2017.09.28"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 g6 6. c4 Bg7 7. Nc3 0-0 8. Be3 Nc6 9. Qd2 Bd7 10. Be2 a6 11. 0-0 Rc8 12. a3 Qc7 13. Rac1 Qa5 14. Nxc6 Rxc6 15. Nd5 Qxd2 16. Nxe7+ Kh8 17. Bxd2 Rc7 18. Ba5 b6 19. Bxb6 Rb7 20. Bd4 Re8 21. Bxf6 Bxf6 22. Nd5 Bxb2 23. Rb1 Reb8 24. Bd3 Bxa3 25. Rxb7 Rxb7 26. Rb1 Rxb1+ 27. Bxb1 a5 28. Bc2 Bb2 29. Kf1 a4 30. Nb6 a3 31. Bb1 Be6 32. Nd5 f5 33. Ke2 fxe4 34. fxe4 Bg4+ 35. Kd2 Kg7 36. h3 Bd7 37. Ba2 g5 38. Ne3 Be5 39. Nc2 Bb2 40. Ne3 Kf6 41. g4 Ke5 42. Kd3 Kf4 43. Bb3 Kg3 44. Nf5+ Bxf5 45. exf5 Kxh3 46. Ke4 Kxg4 47. Kd5 Kxf5 48. Kxd6 g4 49. c5 g3 50. c6 g2 51. Be6+ Kf6 52. Kd7 Be5 53. c7 Bxc7 54. Bg8 g1Q 55. Bxh7 Qg7+ 56. Kc6 Qxh7 57. Kc5 Qe4 58. Kb5 Qc2 59. Kb4 a2 60. Kb5 a1R 61. Kb4 Rb1+ 62. Ka3 Qb3# 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2017.09.28"]
[Round "1"]
[White "Staron, Douglas Rentz"]
[Black "Cubas, Jose Fernando"]
[Result "0-1"]
[ECO "A73"]
[WhiteElo "1737"]
[BlackElo "2461"]
[PlyCount "72"]
[EventDate "2017.09.28"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 g6 6. e4 d6 7. Be2 Bg7 8. Nf3 0-0 9. 0-0 Bg4 10. Re1 Re8 11. h3 Bxf3 12. Bxf3 Nbd7 13. Bg5 a6 14. a4 Ne5 15. Qe2 Rb8 16. Rab1 h6 17. Bf4 Nfd7 18. Qe3 Nxf3+ 19. Qxf3 Ne5 20. Qe3 Kh7 21. Kh1 b5 22. axb5 axb5 23. Bxe5 Bxe5 24. f4 Bg7 25. Rbd1 b4 26. Na4 c4 27. b3 c3 28. Re2 f5 29. Qd3 fxe4 30. Rxe4 Rxe4 31. Qxe4 Qe8 32. Qxe8 Rxe8 33. Nb6 Re4 34. g3 c2 35. Rc1 Re2 36. Nc4 Bc3 0-1

[Event "BRA-ch U18"]
[Site "Itajai"]
[Date "2017.06.04"]
[Round "6"]
[White "Staron, Douglas Rentz"]
[Black "Alves, Matheus Oliveira"]
[Result "0-1"]
[ECO "A85"]
[WhiteElo "1827"]
[BlackElo "1551"]
[PlyCount "60"]
[EventDate "2017.06.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 179 Extra"]
[Source "ChessBase"]
[SourceDate "2017.08.23"]
[SourceVersion "1"]
[SourceVersionDate "2017.08.23"]
[SourceQuality "1"]

1. c4 f5 2. d4 Nf6 3. Nc3 e6 4. Nf3 c6 5. g3 d5 6. c5 Nbd7 7. Bg2 Be7 8. b4 a5 9. b5 Ne4 10. bxc6 Nxc3 11. cxd7+ Bxd7 12. Qc2 Ne4 13. a4 Rc8 14. Ne5 Bf6 15. Bf4 b5 16. Rc1 bxa4 17. Nxd7 Qxd7 18. c6 Qa7 19. Qxa4 Qxd4 20. Qxd4 Bxd4 21. Bxe4 fxe4 22. Bd6 Bb6 23. 0-0 Bc7 24. Ba3 h5 25. h3 Rh6 26. Rc2 Rg6 27. Kg2 Rb8 28. f4 Rb3 29. Bc5 Rgxg3+ 30. Kf2 e3+ 0-1

[Event "BRA-ch U18"]
[Site "Itajai"]
[Date "2017.06.03"]
[Round "4"]
[White "Volkmann, Andre Jordi"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "E87"]
[WhiteElo "1999"]
[BlackElo "1827"]
[PlyCount "87"]
[EventDate "2017.06.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 179 Extra"]
[Source "ChessBase"]
[SourceDate "2017.08.23"]
[SourceVersion "1"]
[SourceVersionDate "2017.08.23"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Be3 e5 7. d5 h6 8. Nge2 Nbd7 9. g4 Ne8 10. Ng3 Nb6 11. Bd3 Kh7 12. h4 c6 13. Qd2 Bd7 14. Nf5 gxf5 15. exf5 f6 16. g5 h5 17. Qe2 Bh8 18. f4 Ng7 19. Ne4 Bxf5 20. gxf6 Rxf6 21. fxe5 dxe5 22. Bg5 Nd7 23. Rf1 Kg8 24. Nxf6+ Nxf6 25. Bxf5 Nxf5 26. Rxf5 Qd6 27. 0-0-0 cxd5 28. Bxf6 Bxf6 29. Rxd5 Qc6 30. Rxh5 Rc8 31. Qg4+ Bg7 32. b3 Rf8 33. Rf5 Re8 34. Rg5 Qf6 35. Qf5 Qxf5 36. Rxf5 e4 37. Kd2 b6 38. Ke2 Bf8 39. Rfe5 Rc8 40. Rxe4 Rc6 41. Rd7 a5 42. Re8 Rh6 43. Rdd8 Rf6 44. Rxf8+ 1-0

[Event "BRA-ch U18"]
[Site "Itajai"]
[Date "2017.06.02"]
[Round "2"]
[White "Farias, Vitor Furtado"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "1637"]
[BlackElo "1827"]
[PlyCount "129"]
[EventDate "2017.06.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 179 Extra"]
[Source "ChessBase"]
[SourceDate "2017.08.23"]
[SourceVersion "1"]
[SourceVersionDate "2017.08.23"]
[SourceQuality "1"]

1. d4 Nf6 2. Bf4 d5 3. e3 Bf5 4. c4 c6 5. Nf3 Nbd7 6. Qb3 Qb6 7. c5 Qxb3 8. axb3 g6 9. h3 Bg7 10. Be2 0-0 11. 0-0 h6 12. Nbd2 g5 13. Bh2 Rfe8 14. Ra3 Ne4 15. Nxe4 Bxe4 16. Rfa1 a6 17. Ne5 Nxe5 18. Bxe5 Bxe5 19. dxe5 Red8 20. Ra4 Rd7 21. Rb4 Rad8 22. Bg4 e6 23. Rd1 Kg7 24. Rdd4 f6 25. Bxe6 Re7 26. exf6+ Kxf6 27. Bg4 Bg6 28. Rb6 h5 29. Bf3 Ke5 30. Be2 Rf8 31. Bd3 Bxd3 32. Rxd3 Ref7 33. Rd2 a5 34. b4 Ra8 35. b5 Rc7 36. Rd4 Rac8 37. b4 a4 38. bxc6 Rxc6 39. Rxb7 Ra8 40. Rd7 a3 41. Rd1 a2 42. Ra1 Ke6 43. Rb7 Rca6 44. Rb6+ Kd7 45. Rxa6 Rxa6 46. f4 gxf4 47. exf4 d4 48. Kf2 Ke6 49. g4 h4 50. Ke2 Ra3 51. b5 Rxh3 52. b6 Kd5 53. b7 Rb3 54. Rxa2 Rxb7 55. g5 Kxc5 56. Kd3 h3 57. Ra5+ Kb4 58. Ra1 Kc5 59. g6 Rd7 60. Rh1 Kd5 61. Rxh3 Ke6 62. Rh7 Rd8 63. Rf7 Rg8 64. f5+ Ke5 65. g7 1-0

[Event "BRA-ch U18"]
[Site "Itajai"]
[Date "2017.06.02"]
[Round "3"]
[White "Staron, Douglas Rentz"]
[Black "Goncalves, Marcelo Moreira"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "1827"]
[BlackElo "1560"]
[PlyCount "103"]
[EventDate "2017.06.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 179 Extra"]
[Source "ChessBase"]
[SourceDate "2017.08.23"]
[SourceVersion "1"]
[SourceVersionDate "2017.08.23"]
[SourceQuality "1"]

1. c4 Nc6 2. d4 d6 3. e4 e5 4. d5 Nce7 5. Nc3 Ng6 6. Nf3 f5 7. Bd3 fxe4 8. Bxe4 Nf6 9. 0-0 Be7 10. Qc2 Nxe4 11. Qxe4 0-0 12. h3 Bf5 13. Qe2 h6 14. Ne4 Qd7 15. Kh2 Rae8 16. Ng3 Nf4 17. Bxf4 exf4 18. Nxf5 Rxf5 19. Qd3 Rf7 20. Nd4 Bf6 21. Ne6 Be5 22. Rab1 c6 23. b4 b5 24. Nd4 Bxd4 25. Qxd4 Re2 26. a3 f3 27. g3 Rfe7 28. Qd3 bxc4 29. Qxc4 cxd5 30. Qxd5+ Qe6 31. Qa8+ Kh7 32. Qxf3 Rf7 33. Qd3+ Kg8 34. Kg2 Qa2 35. Qd4 Qxa3 36. Qd5 Qa2 37. Qxa2 Rxa2 38. Rb3 Rd2 39. g4 d5 40. Kg3 d4 41. f3 d3 42. Ra1 Rd7 43. f4 Rc2 44. Rd1 d2 45. Kf2 Rd4 46. Ke3 Rcc4 47. b5 Rxf4 48. Rxd2 Rce4+ 49. Kd3 Rf3+ 50. Kxe4 Rxb3 51. Ra2 Rxb5 52. Rxa7 1/2-1/2

[Event "BRA-ch U18"]
[Site "Itajai"]
[Date "2017.06.01"]
[Round "1"]
[White "Staron, Douglas Rentz"]
[Black "Cadilhac, Igor Tokuichi Kikuc"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "1827"]
[BlackElo "2234"]
[PlyCount "72"]
[EventDate "2017.06.01"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 179 Extra"]
[Source "ChessBase"]
[SourceDate "2017.08.23"]
[SourceVersion "1"]
[SourceVersionDate "2017.08.23"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. g3 g6 4. Nc3 Bg7 5. Bg2 d6 6. d3 e5 7. 0-0 Nge7 8. e4 0-0 9. Be3 f5 10. Qd2 Nd4 11. Bg5 Be6 12. Rac1 Nxf3+ 13. Bxf3 f4 14. Nd5 Bxd5 15. cxd5 h6 16. Bxe7 Qxe7 17. Bg4 h5 18. Be6+ Kh7 19. f3 fxg3 20. Qg2 Bh6 21. Rce1 gxh2+ 22. Qxh2 Rf4 23. Re2 Raf8 24. Qg2 Qf6 25. Ref2 Rh4 26. Re1 Bf4 27. Bh3 Qd8 28. b3 Qa5 29. Rfe2 Kh6 30. Qf1 Qc3 31. Rd1 g5 32. Bf5 g4 33. fxg4 hxg4 34. Qe1 Qd4+ 35. Qf2 Qxf2+ 36. Kxf2 Rh2+ 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2016.08.28"]
[Round "6"]
[White "Perondi, Marcelo"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "D73"]
[WhiteElo "1497"]
[BlackElo "1834"]
[PlyCount "82"]
[EventDate "2016.08.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. Nf3 d5 2. c4 c6 3. g3 g6 4. d4 Bg7 5. Nc3 Nf6 6. b3 0-0 7. Bg2 Ne4 8. Bb2 Qa5 9. Qc1 f5 10. 0-0 f4 11. Nxe4 dxe4 12. Ne5 Bxe5 13. dxe5 f3 14. exf3 exf3 15. Bh1 Be6 16. Re1 Nd7 17. Re4 Nc5 18. Rh4 h5 19. Qh6 Bf5 20. g4 Bd3 21. gxh5 gxh5 22. Rxh5 Kf7 23. e6+ Nxe6 24. Rxa5 Rg8+ 25. Bg7 Rxg7+ 26. Qxg7+ Kxg7 27. Bxf3 a6 28. Re5 Rg8 29. h3 Kf6+ 30. Bg4 Kxe5 31. Re1+ Be4 32. f3 Ng5 33. Kf2 Rf8 34. Kg3 Nxf3 35. Bxf3 Rxf3+ 36. Kg4 Rf2 37. h4 Rxa2 38. Re3 Rg2+ 39. Kh3 Rg6 40. h5 Rg1 41. Kh4 Kf4 0-1

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2016.08.28"]
[Round "5"]
[White "Staron, Douglas Rentz"]
[Black "Milleo, Lucas Dolatto"]
[Result "1/2-1/2"]
[ECO "E76"]
[WhiteElo "1834"]
[BlackElo "1788"]
[PlyCount "127"]
[EventDate "2016.08.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 Bg4 7. Be2 Nbd7 8. 0-0 Bxf3 9. Rxf3 e5 10. dxe5 dxe5 11. f5 c6 12. h3 Nc5 13. Qxd8 Raxd8 14. Bg5 h6 15. Bxf6 Bxf6 16. b4 Nd7 17. fxg6 fxg6 18. Rg3 Kh7 19. Bg4 Be7 20. a3 Nf6 21. Be2 Rd2 22. c5 Nxe4 23. Nxe4 Rxe2 24. Nd6 Bxd6 25. cxd6 Rd2 26. Re1 Rxd6 27. Rxe5 Rf7 28. Rge3 Rdd7 29. Re8 a6 30. Kh2 Kg7 31. Rb8 Rf8 32. Rxf8 Kxf8 33. Kg3 Rd5 34. h4 Kf7 35. Kf4 Rd4+ 36. Kg3 Kf6 37. Kh3 g5 38. hxg5+ hxg5 39. g4 a5 40. Rf3+ Kg6 41. bxa5 Ra4 42. Rb3 Rxa5 43. Rxb7 Rxa3+ 44. Kg2 Rd3 45. Rc7 Rc3 46. Rc8 c5 47. Rc6+ Kf7 48. Rc8 c4 49. Rc5 Kf6 50. Rf5+ Kg6 51. Rc5 Rc1 52. Rc6+ Kf7 53. Kf2 c3 54. Ke2 c2 55. Kd2 Rg1 56. Kxc2 Rxg4 57. Kd2 Rg3 58. Ke2 g4 59. Kf2 Rf3+ 60. Kg2 Rf6 61. Rxf6+ Kxf6 62. Kf2 Kg5 63. Kg3 Kf5 64. Kg2 1/2-1/2

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2016.08.27"]
[Round "4"]
[White "Luz, Arthur Nader"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "D86"]
[WhiteElo "2081"]
[BlackElo "1834"]
[PlyCount "59"]
[EventDate "2016.08.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 0-0 8. Be3 b6 9. h4 Bb7 10. f3 Nc6 11. Qd2 e6 12. h5 Na5 13. Bd3 Qe7 14. Bh6 f5 15. hxg6 hxg6 16. Bxg7 Qxg7 17. Nh3 Qh7 18. 0-0-0 Rae8 19. Ng5 Qd7 20. Rh7 Re7 21. Rdh1 Rxh7 22. Nxh7 Qxh7 23. Rxh7 Kxh7 24. Qg5 fxe4 25. Qe7+ Kg8 26. Qxe6+ Kg7 27. fxe4 Rf2 28. g4 Rf3 29. Kd2 Rf8 30. e5 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2016.08.27"]
[Round "3"]
[White "Staron, Douglas Rentz"]
[Black "Loss, Victor Pinheiro Cos"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "1834"]
[BlackElo "1247"]
[PlyCount "145"]
[EventDate "2016.08.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. e3 Be7 5. Bd3 0-0 6. Nf3 b6 7. 0-0 Bb7 8. Qc2 dxc4 9. Bxc4 Nbd7 10. e4 c5 11. d5 exd5 12. exd5 Ne8 13. Bf4 Nd6 14. Ne4 Nxe4 15. Qxe4 Nf6 16. Qf5 h6 17. Rad1 Bd6 18. Ne5 Qc7 19. Rfe1 Bc8 20. Qc2 Re8 21. Nxf7 Rxe1+ 22. Rxe1 Kxf7 23. Qc3 Ba6 24. Bxd6 Qxd6 25. Bxa6 Rb8 26. Re6 Qd7 27. Qe5 Re8 28. Bc4 b5 29. Rxe8 Qxe8 30. Qxe8+ Kxe8 31. Bxb5+ Ke7 32. Bc4 Kd6 33. f3 Nxd5 34. Kf2 g5 35. g3 Nf6 36. Ke3 a5 37. h4 Ke5 38. f4+ gxf4+ 39. gxf4+ Kf5 40. Kf3 Nh5 41. Bd3+ Kf6 42. b3 Ng7 43. Ke4 Ke6 44. Bc4+ Kd6 45. f5 Ne8 46. Bf7 Nf6+ 47. Kd3 Kc6 48. Kc4 h5 49. a4 Kb6 50. Kd3 Kc6 51. Ke3 Kd6 52. Kf4 Ke7 53. Bc4 Nh7 54. Bg8 Nf6 55. Bc4 Kd6 56. Kg5 Ke5 57. Be2 Ne4+ 58. Kg6 Nf6 59. Bd3 Nd5 60. Bc2 Nf6 61. Bd1 Ng4 62. Kxh5 Ne3 63. Bg4 Nxf5 64. Kg5 Nxh4 65. Kxh4 Kd4 66. Be6 Ke5 67. Bc4 Kf6 68. Bg8 Ke5 69. Kg5 Kd4 70. Kf4 Kc3 71. Ke5 Kb4 72. Kd6 c4 73. Bxc4 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2016.08.26"]
[Round "1"]
[White "Staron, Douglas Rentz"]
[Black "Mattos, Alexandre Pepi Cesa"]
[Result "1-0"]
[ECO "D06"]
[WhiteElo "1834"]
[PlyCount "71"]
[EventDate "2016.08.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 d5 3. cxd5 Nxd5 4. e4 Nf6 5. Nc3 c5 6. d5 g6 7. Bf4 Bg7 8. Qd2 0-0 9. Bd3 Nbd7 10. Nf3 a6 11. 0-0 b5 12. Rfe1 Bb7 13. Bc2 Nb6 14. Rad1 Nc4 15. Qc1 Qa5 16. e5 Ne8 17. Be4 Nc7 18. b3 Nb6 19. Re3 b4 20. d6 Bxe4 21. Nxe4 Ncd5 22. dxe7 Nxe7 23. Bg5 Nf5 24. Red3 c4 25. bxc4 h6 26. g4 hxg5 27. gxf5 g4 28. Nd4 Qxe5 29. Re1 gxf5 30. Ng3 Qc5 31. Ngxf5 f6 32. Ne7+ Kf7 33. Ne6 Qxe7 34. Nxg7 Qb7 35. Nf5 Rh8 36. Nd6+ 1-0

[Event "Caioba Telecom op"]
[Site "Caioba"]
[Date "2016.08.26"]
[Round "2"]
[White "Zini, Jhone Marcelo"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2093"]
[BlackElo "1834"]
[PlyCount "71"]
[EventDate "2016.08.26"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 174 Extra"]
[Source "ChessBase"]
[SourceDate "2016.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.10"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. c3 e5 4. d3 d6 5. g3 Be7 6. Bg2 Nf6 7. 0-0 0-0 8. Nbd2 Rb8 9. a4 Bg4 10. Nc4 Qc7 11. Ne3 Be6 12. Nd2 a5 13. f4 exf4 14. gxf4 Rfd8 15. Nf3 Ne8 16. d4 cxd4 17. cxd4 Nb4 18. Bd2 Qb6 19. f5 Bd7 20. Bxb4 axb4 21. Nd5 Qa5 22. Nxe7+ Kf8 23. Nd5 Bxf5 24. Ng5 h6 25. Rxf5 hxg5 26. Qh5 f6 27. Nf4 Qb6 28. Ne6+ Kg8 29. Nxd8 Qxd4+ 30. Kh1 Rxd8 31. Qe2 Rc8 32. Rd1 Qa7 33. Qd2 Qxa4 34. Rc1 Rb8 35. Qd5+ Kh7 36. Rf3 1-0

[Event "BRA-ch U16"]
[Site "Itajai"]
[Date "2016.06.12"]
[Round "6"]
[White "Staron, Douglas Rentz"]
[Black "Oliveira, Danyel Angelo Aquin"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "1822"]
[BlackElo "1736"]
[PlyCount "89"]
[EventDate "2016.06.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nc7 6. d3 Nc6 7. g3 e5 8. Bg2 Be7 9. 0-0 g5 10. Be3 h5 11. Qd2 Rg8 12. Rac1 g4 13. Ne1 b6 14. Nd5 Rb8 15. f4 gxf3 16. Rxf3 Nxd5 17. exd5 Nb4 18. Qf2 Nxd5 19. Nc2 Be6 20. Rf1 Rg7 21. Bd2 Qc7 22. Ne3 Nxe3 23. Qxe3 Bg5 24. Qe1 Be7 25. Bc3 Bd6 26. Rf6 Ke7 27. Rh6 c4 28. d4 exd4 29. Bxd4 Bc5 30. Rxf7+ Rxf7 31. Qxe6+ Kd8 32. Rh8+ Rf8 33. Qf6+ Kc8 34. Rxf8+ Bxf8 35. Qxf8+ Kd7 36. Bh3+ Kc6 37. Qf3+ Kb5 38. Qd5+ Ka6 39. Be5 Qe7 40. Qxc4+ b5 41. Qc6+ Rb6 42. Bc8+ Ka5 43. Qd5 Qh7 44. Bc3+ Ka4 45. Qb3# 1-0

[Event "BRA-ch U16"]
[Site "Itajai"]
[Date "2016.06.11"]
[Round "5"]
[White "Soares, Joao Carlos TC"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "1914"]
[BlackElo "1822"]
[PlyCount "61"]
[EventDate "2016.06.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. 0-0 Nc6 7. Nxc6 bxc6 8. c4 Be7 9. Nc3 Nf6 10. Qe2 d6 11. Kh1 Bb7 12. f4 e5 13. fxe5 dxe5 14. Be3 0-0 15. b3 Bb4 16. Na4 c5 17. a3 Bxa3 18. Rxa3 Rfd8 19. Nxc5 Bc6 20. Rxa6 Rxa6 21. Nxa6 Qd6 22. Nc5 Qb8 23. Bc2 Qa8 24. Bg5 Rd6 25. Bxf6 gxf6 26. Rd1 Qd8 27. Rxd6 Qxd6 28. Na4 Qb4 29. h3 Kf8 30. Qf2 Qd6 31. Qc5 1-0

[Event "BRA-ch U16"]
[Site "Itajai"]
[Date "2016.06.11"]
[Round "4"]
[White "Staron, Douglas Rentz"]
[Black "De Souza, Fabio Barbosa"]
[Result "1-0"]
[ECO "E76"]
[WhiteElo "1822"]
[BlackElo "1688"]
[PlyCount "89"]
[EventDate "2016.06.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 e5 6. dxe5 dxe5 7. Qxd8+ Kxd8 8. Nf3 Nfd7 9. fxe5 Bxe5 10. Bg5+ Bf6 11. 0-0-0 Bxg5+ 12. Nxg5 Ke8 13. Be2 h6 14. Nf3 Nc6 15. Nd5 Kd8 16. Rhf1 Re8 17. Nd2 Nde5 18. Nb3 b6 19. Nxb6+ Ke7 20. Nxa8 Kf8 21. Nxc7 Re7 22. Nd5 Re6 23. Nd4 Nxd4 24. Rxd4 Nc6 25. Rdd1 Rxe4 26. Bd3 Rd4 27. Bxg6 Rxc4+ 28. Kb1 Ne5 29. Bf5 Ba6 30. Rfe1 Nc6 31. Bd3 Ra4 32. Bxa6 Rxa6 33. b4 Nxb4 34. Nxb4 Rb6 35. a3 a5 36. Rd4 axb4 37. axb4 Kg7 38. Re5 Kf6 39. Rc5 Re6 40. b5 Re1+ 41. Kb2 Re2+ 42. Rc2 Re5 43. Rb4 Re8 44. b6 Rb8 45. b7 1-0

[Event "BRA-ch U16"]
[Site "Itajai"]
[Date "2016.06.10"]
[Round "3"]
[White "Carstens Dobuchak, Thiago"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2149"]
[BlackElo "1822"]
[PlyCount "91"]
[EventDate "2016.06.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. 0-0 Nc6 7. Nxc6 bxc6 8. Nd2 Be7 9. Qe2 d6 10. b3 Nf6 11. Bb2 0-0 12. e5 Nd5 13. Qe4 g6 14. Nc4 Bb7 15. Rad1 c5 16. exd6 Bxd6 17. Nxd6 Qxd6 18. c4 Nc3 19. Qxb7 Nxd1 20. Rxd1 Qf4 21. g3 Qg4 22. f3 Qg5 23. Qe4 Ra7 24. f4 Qe7 25. Re1 Rd7 26. Bc3 Rfd8 27. Bc2 Rf8 28. Qe5 f6 29. Qxe6+ Rf7 30. Qxe7 Rdxe7 31. Rxe7 Rxe7 32. Kf2 Kf7 33. Kf3 h5 34. Be4 Kg7 35. Ba5 g5 36. Bd5 Kg6 37. Be4+ f5 38. Bd5 gxf4 39. gxf4 h4 40. Bb6 Re1 41. Bxc5 Ra1 42. a3 Ra2 43. Bf2 Rxa3 44. c5 Ra2 45. c6 Rd2 46. c7 1-0

[Event "BRA-ch U16"]
[Site "Itajai"]
[Date "2016.06.10"]
[Round "2"]
[White "Staron, Douglas Rentz"]
[Black "Zanetini, Luis Henrique Bunko"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "1822"]
[PlyCount "61"]
[EventDate "2016.06.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Bc5 3. g3 d6 4. Bg2 Nc6 5. e3 Be6 6. d3 Qd7 7. a3 a6 8. Nge2 Nf6 9. d4 exd4 10. exd4 Bxd4 11. Nxd4 Bxc4 12. Nxc6 bxc6 13. Be3 Be6 14. 0-0 Bh3 15. Bg5 Bxg2 16. Kxg2 0-0-0 17. Qf3 h6 18. Bxf6 gxf6 19. Qxf6 h5 20. h4 Rdg8 21. Rfe1 Rh7 22. Re7 Qg4 23. Rae1 Rg6 24. Re8+ Kb7 25. Qd8 c5 26. Qa8+ Kb6 27. Rb8+ Ka5 28. Re4 Qd1 29. Nxd1 Rg4 30. Nc3 Rhg7 31. Qc6 1-0

[Event "BRA-ch U16"]
[Site "Itajai"]
[Date "2016.06.09"]
[Round "1"]
[White "Goncalves, Oswaldo Pirola"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "E76"]
[WhiteElo "1434"]
[BlackElo "1822"]
[PlyCount "66"]
[EventDate "2016.06.09"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "CBM 172 Extra"]
[Source "ChessBase"]
[SourceDate "2016.06.21"]
[SourceVersion "1"]
[SourceVersionDate "2016.06.21"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 c6 7. Bd3 a6 8. h3 b5 9. a3 Bb7 10. Be3 Qc7 11. Qd2 d5 12. e5 Nh5 13. g4 bxc4 14. gxh5 cxd3 15. hxg6 fxg6 16. Ng5 Bc8 17. Qxd3 Bf5 18. Qd2 Qb7 19. h4 h6 20. Nh3 h5 21. Ng5 Nd7 22. Na4 c5 23. Nxc5 Nxc5 24. dxc5 d4 25. 0-0 dxe3 26. Qxe3 Rfd8 27. Qc3 Rd3 28. Qc4+ e6 29. Ra2 Rg3+ 30. Kf2 Qg2+ 31. Ke1 Re3+ 32. Kd1 Rd8+ 33. Kc1 Qd2# 0-1

[Event "Matinhos Caioba op"]
[Site "Matinhos"]
[Date "2015.08.15"]
[Round "4"]
[White "Staron, Douglas Rentz"]
[Black "Brusamolin, Valerio"]
[Result "0-1"]
[ECO "E76"]
[WhiteElo "1829"]
[BlackElo "2107"]
[PlyCount "54"]
[EventDate "2015.08.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2016"]
[Source "ChessBase"]
[SourceDate "2015.10.08"]
[SourceVersion "1"]
[SourceVersionDate "2015.10.08"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 0-0 6. Nf3 c6 7. Bd3 a6 8. a4 Ng4 9. 0-0 e5 10. d5 Qb6+ 11. Kh1 Nf2+ 12. Rxf2 Qxf2 13. Rb1 Bg4 14. Be2 Qb6 15. b4 exf4 16. a5 Qd8 17. Na4 Nd7 18. Bxf4 Bxf3 19. Bxf3 Ne5 20. Be2 Qh4 21. Qd2 f5 22. Nb6 Rad8 23. Rf1 fxe4 24. Bg5 Rxf1+ 25. Bxf1 Rf8 26. Kg1 Qg4 27. Be7 Nf3+ 0-1

[Event "BRA-ch U16 37th"]
[Site "Lages"]
[Date "2015.05.17"]
[Round "6"]
[White "Staron, Douglas Rentz"]
[Black "Schena, Arthur"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "1850"]
[BlackElo "1550"]
[PlyCount "120"]
[EventDate "2015.05.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. d3 Bb4 5. Bd2 Nf6 6. Bg2 0-0 7. Nf3 d6 8. 0-0 Bxc3 9. Bxc3 Qe8 10. Qc2 Qh5 11. Rfe1 f4 12. e3 Bg4 13. Nd2 Bh3 14. Bh1 Kh8 15. b4 Bd7 16. exf4 Ng4 17. Nf1 exf4 18. b5 fxg3 19. hxg3 Nxf2 20. Bd5 Ne5 21. Re2 Nfg4 22. Rae1 Bf5 23. Qd2 Bxd3 24. Rxe5 Nxe5 25. Bxe5 dxe5 26. Qxd3 Rad8 27. Qc3 Qh3 28. Qxe5 c6 29. Bg2 Qd7 30. bxc6 bxc6 31. Qc5 Qd4+ 32. Qxd4 Rxd4 33. Bxc6 Rxc4 34. Bb5 Rc2 35. a4 Rc7 36. Ne3 h6 37. Re2 Rc3 38. Kg2 Kh7 39. Nd5 Rc5 40. Ne7 Rf7 41. Bd3+ Kh8 42. Ng6+ Kh7 43. Re8 Rcf5 44. Rh8+ Kxg6 45. Ra8 Kg5 46. Bxf5 Rxf5 47. Rc8 Rf7 48. Rc5+ Rf5 49. Rc7 Ra5 50. Rc4 g6 51. Kf3 h5 52. Re4 Rc5 53. Re7 a6 54. Re1 Rc3+ 55. Kg2 Ra3 56. Rc1 Rxa4 57. Kh3 Re4 58. Ra1 Re6 59. Ra5+ Kf6 60. Kg2 Rb6 0-1

[Event "BRA-ch U16 37th"]
[Site "Lages"]
[Date "2015.05.16"]
[Round "5"]
[White "Leacima, Giovane Santiago"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "B47"]
[WhiteElo "1616"]
[BlackElo "1850"]
[PlyCount "60"]
[EventDate "2015.05.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. f4 Bc5 7. Nxc6 Qxc6 8. Bd3 Nf6 9. Qe2 a6 10. Be3 Bb4 11. Bd2 b5 12. a3 Ba5 13. 0-0 Bb7 14. Rae1 0-0 15. Kh1 d6 16. e5 dxe5 17. fxe5 Nd7 18. Qg4 f5 19. exf6 Nxf6 20. Qxe6+ Qxe6 21. Rxe6 Ng4 22. Be2 Rad8 23. Be3 Nxe3 24. Rxf8+ Kxf8 25. Rxe3 Rd2 26. Bf3 Rxc2 27. h3 Bc7 28. g4 Bb6 29. Rd3 Rc1+ 30. Nd1 Rxd1+ 0-1

[Event "BRA-ch U16 37th"]
[Site "Lages"]
[Date "2015.05.14"]
[Round "1"]
[White "Quadros, Gustavo Martins De"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "B30"]
[BlackElo "1850"]
[PlyCount "121"]
[EventDate "2015.05.14"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2022"]
[Source "ChessBase"]
[SourceDate "2021.10.06"]
[SourceVersion "1"]
[SourceVersionDate "2021.10.06"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 Qc7 5. Bg2 Nf6 6. 0-0 Be7 7. Re1 d6 8. Nbd2 a6 9. a4 b6 10. Nf1 Bb7 11. c3 0-0 12. h4 Rac8 13. N1h2 Rfd8 14. g4 Nd7 15. h5 d5 16. Ng5 h6 17. exd5 hxg5 18. dxc6 Bxc6 19. Bxc6 Qxc6 20. Qf3 Qd6 21. Be3 Ne5 22. Qe4 Nxd3 23. Red1 c4 24. Nf3 Qd5 25. Qxd5 Rxd5 26. Bxb6 Nxb2 27. Rdb1 Nd3 28. Be3 Bf6 29. Nd4 e5 30. Nf5 g6 31. Ng3 Kg7 32. hxg6 Kxg6 33. Rb6 Rcd8 34. Ne4 Nf4 35. Rxf6+ Kg7 36. Bxf4 exf4 37. Rxa6 Re5 38. f3 Rd3 39. Kf2 Re3 40. Rc6 f5 41. gxf5 Rxf5 42. Rg1 Kf8 43. Rxg5 Rxg5 44. Nxg5 Rxc3 45. Rf6+ Ke7 46. Rxf4 Rc1 47. Ke2 c3 48. Kd3 Kd6 49. Rc4 Kd5 50. Rd4+ Ke5 51. f4+ Kf5 52. Rc4 c2 53. Rxc2 Rd1+ 54. Kc3 Rf1 55. Kb4 Rb1+ 56. Kc5 Kxf4 57. Ne6+ Ke5 58. Re2+ Kf6 59. Nd4 Rd1 60. Nc2 Rb1 61. Nb4 1-0

[Event "Curitiba Terzian Memorial op"]
[Site "Curitiba"]
[Date "2014.11.02"]
[Round "5"]
[White "Mileski, Lucas de Souza"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1754"]
[BlackElo "1836"]
[PlyCount "52"]
[EventDate "2014.10.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. e4 c5 2. d4 cxd4 3. c3 d3 4. Bxd3 e6 5. Nf3 Bc5 6. Nbd2 Ne7 7. Ng5 0-0 8. Nxh7 Bxf2+ 9. Kxf2 Qb6+ 10. Kf1 Kxh7 11. Qh5+ Kg8 12. e5 Ng6 13. Ne4 Rd8 14. Nf6+ Kf8 15. Bg5 Qxb2 16. Bxg6 Qxa1+ 17. Kf2 Qb2+ 18. Kf1 Qb5+ 19. Kf2 Qc5+ 20. Be3 Qxc3 21. Rc1 Qb2+ 22. Kf3 b6 23. Rxc8 Rxc8 24. Qh8+ Ke7 25. Qxc8 gxf6 26. Be4 Nc6 0-1

[Event "Curitiba Terzian Memorial op"]
[Site "Curitiba"]
[Date "2014.11.02"]
[Round "6"]
[White "Staron, Douglas Rentz"]
[Black "Acosta, Pablo Alejandro"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "1836"]
[BlackElo "2047"]
[PlyCount "85"]
[EventDate "2014.10.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. c4 f5 2. d4 g6 3. g3 Nh6 4. Bg2 Nf7 5. Nf3 Bg7 6. b3 e5 7. Bb2 e4 8. Nfd2 c5 9. e3 Nc6 10. Qc2 cxd4 11. 0-0 d3 12. Qc1 Bxb2 13. Qxb2 Qe7 14. Nc3 Qe5 15. Rab1 0-0 16. Nd5 Qxb2 17. Rxb2 d6 18. f3 exf3 19. Nxf3 Nfe5 20. Ne1 Bd7 21. Rd2 Rae8 22. Nxd3 Ng4 23. Re1 b5 24. cxb5 Na5 25. Nf2 Ne5 26. b6 a6 27. Nc7 Rb8 28. Rxd6 Bc6 29. Nxa6 Rxb6 30. Nc5 Rc8 31. Red1 Bxg2 32. Rxb6 Bf3 33. Rc1 Nd7 34. Rb5 Nb7 35. Nfd3 Nd6 36. Ra5 Nf6 37. Kf2 Bg4 38. Nd7 Nfe4+ 39. Ke1 Rd8 40. N3e5 Bh5 41. Nb6 f4 42. g4 fxe3 43. Ra8 1-0

[Event "Curitiba Terzian Memorial op"]
[Site "Curitiba"]
[Date "2014.11.01"]
[Round "3"]
[White "Pi Chillida, Nicole"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "1353"]
[BlackElo "1836"]
[PlyCount "72"]
[EventDate "2014.10.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d6 4. Nf3 Bg7 5. Bg5 Nbd7 6. e3 0-0 7. Bd3 c5 8. 0-0 Qc7 9. Re1 Nb6 10. b3 e6 11. dxc5 dxc5 12. Qc2 Bd7 13. Rad1 a6 14. e4 Bc6 15. Re3 Nbd7 16. h3 Nh5 17. Ree1 Ne5 18. Nxe5 Qxe5 19. Qc1 Qxc3 20. Qxc3 Bxc3 21. Re2 Bd4 22. Kh2 b5 23. g4 Be5+ 24. Kg2 Nf4+ 25. Bxf4 Bxf4 26. f3 Rad8 27. Ree1 Rd7 28. Bc2 Rfd8 29. Rxd7 Rxd7 30. Rd1 Rd4 31. Kf2 bxc4 32. Rxd4 cxd4 33. bxc4 a5 34. Ke2 Kf8 35. Kd3 e5 36. c5 Bb5# 0-1

[Event "Curitiba Terzian Memorial op"]
[Site "Curitiba"]
[Date "2014.11.01"]
[Round "4"]
[White "Staron, Douglas Rentz"]
[Black "Lopes, Bianca Barros Pan"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "1836"]
[BlackElo "1748"]
[PlyCount "85"]
[EventDate "2014.10.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. c4 Nf6 2. d4 e6 3. Nc3 d5 4. Nf3 Be7 5. g3 0-0 6. c5 Nc6 7. Bf4 Nh5 8. Bd2 Nf6 9. Bg2 b6 10. Na4 Bb7 11. b4 Ne4 12. b5 Nxd2 13. Qxd2 Na5 14. c6 Nc4 15. Qd3 Bc8 16. 0-0 a6 17. Nc3 axb5 18. Nxb5 Ba6 19. a4 Nb2 20. Qc2 Nc4 21. Rfc1 Bxb5 22. axb5 Na3 23. Qd3 Nc4 24. Ne1 Ba3 25. Rcb1 Qe7 26. e4 Qd8 27. Nc2 Be7 28. Rxa8 Qxa8 29. exd5 exd5 30. Bxd5 Nd6 31. Nb4 Qc8 32. Na6 Bf6 33. Be4 Nxe4 34. Qxe4 h6 35. Qf4 Rd8 36. Rd1 Rd6 37. Re1 Rxd4 38. Qxc7 Qxc7 39. Nxc7 Rb4 40. Nd5 Rxb5 41. Nxf6+ gxf6 42. Re8+ Kg7 43. c7 1-0

[Event "Curitiba Terzian Memorial op"]
[Site "Curitiba"]
[Date "2014.10.31"]
[Round "1"]
[White "Da Silva, Anderson Lemes"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "A52"]
[WhiteElo "1786"]
[BlackElo "1836"]
[PlyCount "52"]
[EventDate "2014.10.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 Bc5 5. e3 d6 6. a3 a5 7. Be2 dxe5 8. Qxd8+ Kxd8 9. Bxg4 exf4 10. Bxc8 Kxc8 11. exf4 Re8+ 12. Kf1 Bd4 13. Nc3 Nc6 14. Nf3 Bxc3 15. bxc3 Re4 16. Re1 Rxc4 17. Re8+ Nd8 18. Ne5 Rxc3 19. Ke2 f6 20. Rd1 b6 21. Rexd8+ Kb7 22. Rxa8 fxe5 23. fxe5 Rxa3 24. Rad8 a4 25. R8d4 Ra2+ 26. Kf3 a3 1-0

[Event "Curitiba Terzian Memorial op"]
[Site "Curitiba"]
[Date "2014.10.31"]
[Round "2"]
[White "Staron, Douglas Rentz"]
[Black "Assad, Otavio Orlando"]
[Result "0-1"]
[ECO "A90"]
[WhiteElo "1836"]
[BlackElo "1490"]
[PlyCount "72"]
[EventDate "2014.10.31"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. c4 f5 2. d4 e6 3. g3 d5 4. b3 c6 5. Nf3 Nf6 6. Bg2 Bd6 7. 0-0 0-0 8. c5 Bc7 9. b4 Qe8 10. Bb2 Nbd7 11. Qb3 Ne4 12. Nbd2 Qh5 13. Rfe1 Rf6 14. a4 Rh6 15. Nf1 Ndf6 16. Bc1 g5 17. Ne5 Bxe5 18. dxe5 Nd7 19. f3 Nxg3 20. hxg3 Nxe5 21. Qc3 Nf7 22. b5 e5 23. Bb2 d4 24. Qd2 Be6 25. e3 dxe3 26. Qxe3 Bd5 27. Ra3 g4 28. Qe2 gxf3 29. Bxf3 Bxf3 30. Qxf3 Qh3 31. Re2 Ng5 32. Qg2 Qg4 33. Rxe5 Nh3+ 34. Kh1 Nf4+ 35. Qh2 Rxh2+ 36. Kg1 Rg2+ 0-1

[Event "Parana-chT"]
[Site "Sao Jose dos Pinhais"]
[Date "2014.10.16"]
[Round "4.4"]
[White "Biagini, Guilherme Albach"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "E70"]
[WhiteElo "1800"]
[BlackElo "1836"]
[PlyCount "48"]
[EventDate "2014.10.13"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Ponta Grossa"]
[BlackTeam "Sao Jose dos Pinhais"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 0-0 6. Qd2 Re8 7. Nf3 b6 8. Bd3 Bb7 9. 0-0-0 c6 10. h4 d5 11. e5 Ng4 12. cxd5 cxd5 13. h5 Qc7 14. hxg6 fxg6 15. Ne1 Nxe5 16. dxe5 d4 17. Qf4 dxc3 18. b3 Bxe5 19. Qh4 e6 20. f4 Bg7 21. Rh2 h6 22. Bxg6 hxg5 23. Qh7+ Kf8 24. Bxe8 Qxf4+ 0-1

[Event "Parana-chT"]
[Site "Sao Jose dos Pinhais"]
[Date "2014.10.15"]
[Round "3.4"]
[White "Staron, Douglas Rentz"]
[Black "Vilela, Bruno Ailton"]
[Result "1-0"]
[ECO "E68"]
[WhiteElo "1836"]
[BlackElo "1642"]
[PlyCount "61"]
[EventDate "2014.10.13"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Sao Jose dos Pinhais"]
[BlackTeam "Curitiba"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. c4 g6 2. d4 Bg7 3. Nc3 Nf6 4. e4 d6 5. g3 0-0 6. Bg2 Nbd7 7. Nf3 Re8 8. 0-0 e5 9. d5 h6 10. b4 Kh7 11. Rb1 a6 12. h3 Rf8 13. Be3 Ne8 14. Qc2 Nb6 15. Ne2 f5 16. c5 fxe4 17. Nh4 Nxd5 18. Qxe4 Ne7 19. Qd3 d5 20. Rbd1 c6 21. f4 e4 22. Bxe4 Bf5 23. Nxf5 gxf5 24. Bxf5+ Nxf5 25. g4 Qd7 26. Ng3 Kg8 27. Nxf5 h5 28. Bd4 hxg4 29. hxg4 Qe6 30. Rde1 Qg6 31. Ne7+ 1-0

[Event "Parana-chT"]
[Site "Sao Jose dos Pinhais"]
[Date "2014.10.14"]
[Round "2.4"]
[White "Barbosa de Aguiar, Lucas Teodo"]
[Black "Staron, Douglas Rentz"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1560"]
[BlackElo "1836"]
[PlyCount "84"]
[EventDate "2014.10.13"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Siqueira Campos"]
[BlackTeam "Sao Jose dos Pinhais"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. e4 c5 2. Nc3 Nc6 3. f4 d6 4. Bb5 Bd7 5. Nf3 g6 6. d3 Bg7 7. 0-0 Qb6 8. Kh1 Bxc3 9. Bxc6 Bxc6 10. bxc3 0-0-0 11. Bd2 Kb8 12. c4 Nf6 13. a4 Qc7 14. Qe2 Qd7 15. a5 h5 16. Rfb1 h4 17. Bc3 Rh7 18. Bxf6 exf6 19. d4 Qe7 20. d5 Bd7 21. Qd3 Re8 22. Qb3 Bc8 23. e5 dxe5 24. fxe5 fxe5 25. Re1 e4 26. Qe3 Ka8 27. Nd2 f5 28. Nb3 f4 29. Qxf4 h3 30. g3 e3 31. d6 Qd7 32. Rxe3 Qc6+ 33. Rf3 g5 34. Qf6 g4 35. d7 Bxd7 36. Nd2 gxf3 37. Nxf3 Bg4 38. Qxc6 bxc6 39. Ng1 Rhe7 40. Rf1 Re1 41. Rf4 R8e4 42. Rf7 R4e3 0-1

[Event "Parana-chT"]
[Site "Sao Jose dos Pinhais"]
[Date "2014.10.13"]
[Round "1.4"]
[White "Staron, Douglas Rentz"]
[Black "Pereira, Ezequias Alves"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "1836"]
[BlackElo "1618"]
[PlyCount "79"]
[EventDate "2014.10.13"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]
[WhiteTeam "Sao Jose dos Pinhais"]
[BlackTeam "Maringa"]
[WhiteTeamCountry "BRA"]
[BlackTeamCountry "BRA"]

1. c4 c5 2. Nf3 Nc6 3. g3 e5 4. d3 Nf6 5. Nc3 d6 6. Bg2 Nd4 7. 0-0 Be7 8. Rb1 0-0 9. a3 Rb8 10. b4 Nxf3+ 11. Bxf3 Bh3 12. Re1 b6 13. e3 Qd7 14. Nd5 Nxd5 15. Bxd5 Bg4 16. Qc2 Qf5 17. Be4 Qh5 18. f3 Bxf3 19. Bxf3 Qxf3 20. Rf1 Qg4 21. Qf2 Qg6 22. Rb3 a5 23. b5 a4 24. Rc3 Bf6 25. Bd2 Rbd8 26. e4 Bg5 27. Bxg5 Qxg5 28. Rcc1 h6 29. Rcd1 g6 30. Qf6 Qxf6 31. Rxf6 Kg7 32. Rdf1 Rd7 33. Kg2 Re8 34. h3 Re6 35. R6f3 h5 36. h4 Ree7 37. Kh3 Kh6 38. Rf6 Kg7 39. R1f2 Re6 40. R6f3 1/2-1/2

[Event "Maringa op 4th"]
[Site "Maringa"]
[Date "2014.08.22"]
[Round "5"]
[White "Tacconi da Silva, Lucas"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1990"]
[BlackElo "1815"]
[PlyCount "42"]
[EventDate "2014.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. Bg5 Ne4 3. Bf4 g5 4. Bc1 h6 5. f3 Nf6 6. e4 Nc6 7. e5 Nd5 8. c4 Nb6 9. d5 Nxe5 10. c5 Nbc4 11. Bxc4 Nxc4 12. Qd4 Rg8 13. Qxc4 Bg7 14. Nc3 d6 15. Nge2 dxc5 16. Qxc5 e6 17. 0-0 Qd6 18. Be3 Be5 19. Qxd6 Bxd6 20. Nb5 Kd8 21. Bxa7 Bd7 1-0

[Event "Maringa op 4th"]
[Site "Maringa"]
[Date "2014.08.21"]
[Round "3"]
[White "Staron, Douglas Rentz"]
[Black "Merlo, Rodrigo Cesar"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "1815"]
[BlackElo "1910"]
[PlyCount "61"]
[EventDate "2014.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Be6 6. Nf3 Nc6 7. 0-0 Nxc3 8. bxc3 e4 9. Ne1 f5 10. d3 Be7 11. Be3 exd3 12. exd3 0-0 13. d4 Bc4 14. Nd3 Bd6 15. Re1 f4 16. Nxf4 Qd7 17. d5 Ne5 18. Bd4 Qf5 19. Be4 Qg4 20. Bxe5 Qxd1 21. Raxd1 Bxe5 22. Bxh7+ Kxh7 23. Rxe5 Bxa2 24. Rh5+ Kg8 25. Ne6 Rf7 26. Nf4 Bc4 27. Ng6 Rf6 28. Rh8+ Kf7 29. Rxa8 Kxg6 30. Rxa7 Ba6 31. Ra8 1-0

[Event "Maringa op 4th"]
[Site "Maringa"]
[Date "2014.08.20"]
[Round "1"]
[White "Staron, Douglas Rentz"]
[Black "Gauche, Charles"]
[Result "0-1"]
[ECO "A27"]
[WhiteElo "1815"]
[BlackElo "2230"]
[PlyCount "30"]
[EventDate "2014.08.20"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "BRA"]
[SourceTitle "EXT 2015"]
[Source "ChessBase"]
[SourceDate "2014.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2014.11.20"]
[SourceQuality "1"]

1. c4 e5 2. d3 Nc6 3. Nf3 f5 4. Nc3 Nf6 5. g3 Bb4 6. Bd2 0-0 7. Bg2 d6 8. a3 Bxc3 9. bxc3 Qe8 10. 0-0 Qh5 11. e3 f4 12. Re1 Ne7 13. h3 Bxh3 14. Bxh3 Qxh3 15. Ng5 Qf5 0-1

[Event "Maringa op 3rd"]
[Site "Maringa"]
[Date "2013.07.24"]
[Round "1"]
[White "De Souza, Ivo Eduardo Medeiro"]
[Black "Staron, Douglas Rentz"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "2193"]
[PlyCount "63"]
[EventDate "2013.07.24"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "BRA"]
[SourceTitle "CBM 155 Extra"]
[Source "ChessBase"]
[SourceDate "2013.08.26"]
[SourceVersion "1"]
[SourceVersionDate "2013.08.26"]
[SourceQuality "1"]

1. d4 d5 2. c4 e6 3. Nc3 dxc4 4. e4 Nc6 5. Nf3 Bb4 6. Bxc4 Nf6 7. Qd3 Na5 8. Bb5+ Bd7 9. Ne5 0-0 10. Nxd7 Nxd7 11. 0-0 c6 12. Ba4 Ne5 13. Qg3 Ng6 14. Rd1 Bxc3 15. Qxc3 b5 16. Bc2 Nb7 17. g3 Qd6 18. Be3 a5 19. Rac1 b4 20. Qc4 a4 21. Bb1 Na5 22. Qe2 e5 23. d5 cxd5 24. Bc5 Qd7 25. Bxf8 Rxf8 26. Rxd5 Qa7 27. Qb5 Ra8 28. Rd7 Qb8 29. Qd5 Qe8 30. Rxf7 Kh8 31. Rcc7 Qd8 32. Rfd7 1-0

