[Event "US Open-110"]
[Site "Indianapolis"]
[Date "2009.08.04"]
[Round "4"]
[White "Yu, Corbin Z"]
[Black "Lagemann, Nathaniel B"]
[Result "1-0"]
[ECO "B98"]
[WhiteElo "2207"]
[BlackElo "1968"]
[PlyCount "81"]
[EventDate "2009.08.01"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "USA"]
[SourceTitle "CBM 131 Extra"]
[Source "ChessBase"]
[SourceDate "2009.09.03"]
[SourceVersion "2"]
[SourceVersionDate "2009.09.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qe2 Be7 8. f4 Nbd7 9. 0-0-0 Qc7 10. g4 h6 11. Bh4 Nb6 12. g5 hxg5 13. Bxg5 Bd7 14. Rg1 g6 15. f5 gxf5 16. exf5 e5 17. h4 0-0-0 18. Nb3 Bc6 19. Na5 Na4 20. Nxc6 Qxc6 21. Nxa4 Qxa4 22. Rg3 Kb8 23. Ra3 Qd7 24. Rb3 Ka8 25. Bg2 d5 26. Bxf6 Bxf6 27. Bxd5 Qa4 28. Rb6 Rxd5 29. Rxd5 Qxa2 30. Qe4 Qa1+ 31. Kd2 Bxh4 32. Kc3 Be1+ 33. Kb3 Rh3+ 34. c3 Rxc3+ 35. bxc3 Qxc3+ 36. Ka2 Qc7 37. Rxa6+ bxa6 38. Rd7+ Kb8 39. Rxc7 Kxc7 40. Qxe5+ Kd7 41. Qxe1 1-0

[Event "Western Pacific op 7th"]
[Site "Los Angeles"]
[Date "2009.03.14"]
[Round "2"]
[White "Lagemann, Nathaniel B"]
[Black "Peters, Jack"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "1962"]
[BlackElo "2383"]
[PlyCount "48"]
[EventDate "2009.03.13"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6 5. Nb3 Nf6 6. Bd3 e6 7. Nc3 a6 8. 0-0 d6 9. Be3 Qc7 10. f4 Be7 11. Kh1 b5 12. Qe2 Bb7 13. Bg1 0-0 14. Rf3 Rfe8 15. Rh3 g6 16. Nb1 e5 17. Qf2 d5 18. exd5 Nxd5 19. fxe5 Nxe5 20. Be4 Ng4 21. Qg3 Bd6 22. Qxg4 Rxe4 23. Qg5 Nf4 24. Rf3 Re2 0-1

[Event "Western Pacific op 7th"]
[Site "Los Angeles"]
[Date "2009.03.14"]
[Round "3"]
[White "Porter, Ryan W"]
[Black "Lagemann, Nathaniel B"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2283"]
[BlackElo "1962"]
[PlyCount "163"]
[EventDate "2009.03.13"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. Nf3 g6 2. g3 Bg7 3. Bg2 Nf6 4. 0-0 d6 5. d3 0-0 6. e4 Nh5 7. Nh4 e5 8. Nf5 Bxf5 9. exf5 c6 10. Nc3 d5 11. Rb1 a5 12. Qf3 Nf6 13. g4 gxf5 14. Qxf5 Qd7 15. Qxd7 Nbxd7 16. g5 Ne8 17. f4 Nc7 18. h4 h6 19. f5 hxg5 20. hxg5 f6 21. g6 Rfb8 22. Nd1 Bf8 23. Bd2 Bc5+ 24. Ne3 Kg7 25. Kf2 Rh8 26. Rh1 a4 27. Ke2 Bxe3 28. Kxe3 Rxh1 29. Rxh1 Rh8 30. Rxh8 Kxh8 31. d4 exd4+ 32. Kxd4 Nb5+ 33. Ke3 Ne5 34. Bf1 Nd6 35. Kf4 Kg7 36. Bc3 Nd7 37. b3 axb3 38. axb3 Nb6 39. Bd4 Nd7 40. Bd3 b5 41. Bc3 Nc5 42. Bf1 Nce4 43. Ba5 Ng5 44. Bg2 Nde4 45. c4 bxc4 46. bxc4 Nf2 47. cxd5 cxd5 48. Bxd5 Nd3+ 49. Kg3 Ne5 50. Bc3 Nd7 51. Bd4 Nb8 52. Bb7 Nd7 53. Bc6 Nf8 54. Kg4 Nxg6 55. fxg6 Kxg6 56. Be8+ Kg7 57. Kf5 Nh7 58. Bc3 Kf8 59. Bb5 Kg7 60. Bc4 Kh6 61. Bb4 Kg7 62. Bd2 Ng5 63. Be3 Nh7 64. Ke6 Ng5+ 65. Ke7 Nh7 66. Bd3 Ng5 67. Bd4 Nh7 68. Bc3 Kg8 69. Ke8 Kg7 70. Bb4 Kg8 71. Bg6 Kg7 72. Bf7 Ng5 73. Bf8+ Kh8 74. Bg6 Kg8 75. Bh6 Nh7 76. Ke7 f5 77. Bxf5 Kh8 78. Be6 Ng5 79. Bxg5 Kh7 80. Kf7 Kh8 81. Bd5 Kh7 82. Be4+ 1-0

[Event "Pasadena op"]
[Site "Pasadena"]
[Date "2008.08.31"]
[Round "4"]
[White "Matson, Dave"]
[Black "Lagemann, Nathaniel B"]
[Result "1-0"]
[ECO "B26"]
[BlackElo "1942"]
[PlyCount "57"]
[EventDate "2008.08.30"]
[EventType "swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2009"]
[Source "ChessBase"]
[SourceDate "2008.11.26"]
[SourceVersion "1"]
[SourceVersionDate "2008.11.26"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nc6 4. Bg2 g6 5. d3 e6 6. Be3 Bg7 7. Qd2 Nge7 8. Bh6 0-0 9. Bxg7 Kxg7 10. f4 d5 11. e5 Nd4 12. Nd1 b5 13. c3 Ndc6 14. Nf3 c4 15. d4 a5 16. g4 Rh8 17. Ne3 h5 18. h3 hxg4 19. hxg4 Rxh1+ 20. Bxh1 b4 21. Bg2 bxc3 22. bxc3 Rb8 23. Ke2 Qb6 24. Rh1 Bd7 25. f5 exf5 26. Nxc4 Nxe5 27. Qh6+ Kf6 28. dxe5+ Ke6 29. Ng5# 1-0

[Event "USA-chT Amateur West"]
[Site "Los Angeles"]
[Date "2008.02.18"]
[Round "6"]
[White "Lagemann, Nathaniel B"]
[Black "Mateer, Amanda Rae"]
[Result "0-1"]
[ECO "E81"]
[WhiteElo "1976"]
[PlyCount "82"]
[EventDate "2008.02.16"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 0-0 6. Bg5 h6 7. Be3 Nc6 8. Qd2 Kh7 9. Bd3 e5 10. d5 Nd4 11. Nge2 Nxe2 12. Nxe2 c5 13. g4 Ne8 14. Ng3 a6 15. h3 Bd7 16. Rb1 b5 17. b3 b4 18. 0-0 Nc7 19. f4 f6 20. Qe2 Qe7 21. h4 a5 22. g5 exf4 23. gxh6 Bxh6 24. Bxf4 Bxf4 25. Rxf4 Qe5 26. Rbf1 a4 27. Qf3 axb3 28. axb3 Ra1 29. Rxa1 Qxa1+ 30. Bf1 Ne8 31. Qe3 Ng7 32. Kg2 Qe5 33. Qd2 Nh5 34. Nxh5 gxh5 35. Kf2 Ra8 36. Ke3 Ra3 37. Qc2 Bg4 38. Bd3 Ra1 39. Rxg4 hxg4 40. Kd2 Qf4+ 41. Ke2 Ra2 0-1

[Event "USA-chT Amateur West"]
[Site "San Pedro"]
[Date "2007.02.19"]
[Round "5"]
[White "Lagemann, Nathaniel B"]
[Black "Zhang, Kelly"]
[Result "1-0"]
[ECO "C11"]
[PlyCount "49"]
[EventDate "2007.02.17"]
[EventType "team-swiss"]
[EventRounds "6"]
[EventCountry "USA"]
[SourceTitle "EXT 2014"]
[Source "ChessBase"]
[SourceDate "2013.11.20"]
[SourceVersion "1"]
[SourceVersionDate "2013.11.20"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8. Nxd4 Nxd4 9. Bxd4 Bb4 10. Qg4 0-0 11. 0-0-0 Nb8 12. Ne2 Nc6 13. Bf2 Bd7 14. Bh4 Be7 15. Bxe7 Qxe7 16. Ng3 Kh8 17. Nh5 Rg8 18. a3 Rac8 19. Rd3 Na5 20. Rh3 g6 21. Nf6 Rg7 22. Qh4 h5 23. Qxh5+ gxh5 24. Rxh5+ Rh7 25. Rxh7# 1-0

