[Event "Stillwater Winter op"]
[Site "Oklahoma"]
[Date "2008.02.17"]
[Round "3"]
[White "Cao, Henry"]
[Black "Umbarger, Lance"]
[Result "1-0"]
[ECO "B30"]
[PlyCount "50"]
[EventDate "2008.02.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. Bc4 g6 4. Nc3 Bg7 5. d3 d6 6. Be3 Nd4 7. h3 a6 8. a4 Rb8 9. Bxd4 cxd4 10. Ne2 e5 11. Qd2 h6 12. 0-0 Ne7 13. Rfe1 0-0 14. c3 b5 15. axb5 axb5 16. Bb3 dxc3 17. bxc3 Kh7 18. Reb1 f5 19. Rb2 d5 20. exd5 Nxd5 21. Bc4 b4 22. Ra5 bxc3 23. Nxc3 Rxb2 24. Qxb2 Nxc3 25. Qxc3 Qb6 1-0

[Event "Stillwater Winter op"]
[Site "Oklahoma"]
[Date "2008.02.17"]
[Round "5"]
[White "Miller, Matt S"]
[Black "Umbarger, Lance"]
[Result "0-1"]
[ECO "B21"]
[PlyCount "54"]
[EventDate "2008.02.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. e4 c5 2. f4 d5 3. Nc3 dxe4 4. Nxe4 e6 5. Bb5+ Bd7 6. Bxd7+ Nxd7 7. Nf3 Ngf6 8. d3 Be7 9. 0-0 0-0 10. Bd2 Qc7 11. Qe1 Rac8 12. Rd1 Nd5 13. Neg5 h6 14. Qh4 hxg5 15. Nxg5 Bxg5 16. fxg5 Ne5 17. Bc3 Nxc3 18. bxc3 Ng6 19. Qh3 Qe5 20. Rf3 Nf4 21. Qh4 Nxg2 22. Qh5 g6 23. Qh6 Nf4 24. Rdf1 Nh5 25. Rf6 Qe3+ 26. Kg2 Nxf6 27. Rxf6 Qe2+ 0-1

[Event "Stillwater Winter op"]
[Site "Oklahoma"]
[Date "2008.02.17"]
[Round "4"]
[White "Umbarger, Lance"]
[Black "Sparks, William"]
[Result "1-0"]
[ECO "A00"]
[PlyCount "11"]
[EventDate "2008.02.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. g4 e5 2. Bg2 d5 3. c4 c6 4. cxd5 cxd5 5. Qb3 Bxg4 6. Bxd5 1-0

[Event "Stillwater Winter op"]
[Site "Oklahoma"]
[Date "2008.02.16"]
[Round "2"]
[White "Umbarger, Lance"]
[Black "Donaldson, John W"]
[Result "0-1"]
[ECO "B74"]
[BlackElo "2420"]
[PlyCount "104"]
[EventDate "2008.02.16"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "CBM 122 Extra"]
[Source "ChessBase"]
[SourceDate "2008.03.04"]
[SourceVersion "1"]
[SourceVersionDate "2008.03.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 a6 3. a4 Nc6 4. Nc3 g6 5. d4 cxd4 6. Nxd4 Bg7 7. Nb3 Nf6 8. Be2 0-0 9. Be3 d6 10. f4 Be6 11. 0-0 Rc8 12. Bf3 Na5 13. Nxa5 Qxa5 14. Qd2 Rfd8 15. Qf2 Nd7 16. Bd4 Bxd4 17. Qxd4 Qb6 18. Qxb6 Nxb6 19. f5 Bc4 20. Rfe1 Nd7 21. fxg6 hxg6 22. e5 Nxe5 23. Bxb7 Rb8 24. Bd5 Rdc8 25. b3 Bxb3 26. Bxb3 Rxc3 27. Rad1 Kf8 28. h3 Rb6 29. Re4 Rbc6 30. Rb4 e6 31. Kf2 Ke7 32. Rdd4 d5 33. Rb7+ Kd6 34. Rdb4 a5 35. Rf4 Rc7 36. Rb8 f5 37. Rh4 g5 38. Rhh8 g4 39. hxg4 Nxg4+ 40. Kg1 Ne3 41. Rb5 R7c5 42. Rb6+ Rc6 43. Rb5 R3c5 44. Ra8 Nxc2 45. Bxc2 Rxb5 46. axb5 Rxc2 47. Rxa5 Rb2 48. Ra6+ Ke5 49. b6 d4 50. Kf1 Ke4 51. b7 e5 52. Ke1 Rxb7 0-1

[Event "Tulsa Okie op"]
[Site "Tulsa"]
[Date "2007.05.28"]
[Round "7"]
[White "Wawrzaszek, Jason"]
[Black "Umbarger, Lance"]
[Result "0-1"]
[ECO "B35"]
[PlyCount "90"]
[EventDate "2007.05.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "CBM 118 Extra"]
[Source "ChessBase"]
[SourceDate "2007.07.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.07.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 Qa5 8. 0-0 0-0 9. Bb3 d6 10. f3 Bd7 11. Qd2 Nxd4 12. Bxd4 Bc6 13. Rad1 Nd7 14. Nd5 Bxd4+ 15. Qxd4 Bxd5 16. Bxd5 Rab8 17. Kh1 Rfc8 18. c3 b5 19. a3 Qc7 20. f4 Qc5 21. e5 Qxd4 22. Rxd4 e6 23. Ba2 d5 24. g4 a5 25. Rf3 g5 26. Re3 gxf4 27. Rxf4 Rb7 28. g5 b4 29. axb4 axb4 30. c4 dxc4 31. Bxc4 Rc5 32. Rfe4 Ra7 33. Bb3 Raa5 34. Rxb4 Rxe5 35. Rxe5 Rxe5 36. h4 Re1+ 37. Kg2 Re2+ 38. Kg3 Rxb2 39. h5 Nc5 40. Rb8+ Kg7 41. h6+ Kg6 42. Rg8+ Kf5 43. Bd1 Ne4+ 44. Kf3 Nxg5+ 45. Ke3 Rh2 0-1

[Event "Tulsa Okie op"]
[Site "Tulsa"]
[Date "2007.05.27"]
[Round "3"]
[White "Johnson, Chuck"]
[Black "Umbarger, Lance"]
[Result "1-0"]
[ECO "D15"]
[PlyCount "111"]
[EventDate "2007.05.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "CBM 118 Extra"]
[Source "ChessBase"]
[SourceDate "2007.07.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.07.04"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. Bg5 b5 6. Bxf6 gxf6 7. g3 e6 8. Bg2 Be7 9. 0-0 Qb6 10. e4 a5 11. Qd2 h5 12. Rfe1 Bb7 13. Rad1 Na6 14. d5 0-0-0 15. Qc2 e5 16. Nh4 Nb4 17. Qb1 Bc5 18. Rf1 Bd4 19. Nf5 c5 20. a4 Ba6 21. Nxb5 Bxb5 22. axb5 Qxb5 23. Nxd4 cxd4 24. Rc1 d3 25. b3 Nc2 26. bxc4 Qxc4 27. Qb6 Kd7 28. Bh3+ Ke7 29. Qb7+ Kf8 30. d6 a4 31. Qe7+ Kg7 32. d7 a3 33. Rb1 a2 34. Rb6 Rh6 35. Be6 Qc7 36. Qxf7+ Kh8 37. Qe8+ Kg7 38. Rb7 Qa5 39. Bxa2 Ne1 40. Rb8 Nf3+ 41. Kh1 Rh8 42. Qe7+ Kh6 43. Qxf6+ Kh7 44. Bf7 Rhg8 45. Rb6 Qxb6 46. Qxb6 Rxd7 47. Bxg8+ Kxg8 48. Qe6+ Rf7 49. Ra1 d2 50. Qg6+ Kf8 51. Ra8+ Ke7 52. Ra7+ Ke8 53. Qe6+ Kd8 54. Ra8+ Kc7 55. Qxf7+ Kb6 56. Qxf3 1-0

[Event "Tulsa Okie op"]
[Site "Tulsa"]
[Date "2007.05.27"]
[Round "5"]
[White "Salazar, Conrado"]
[Black "Umbarger, Lance"]
[Result "0-1"]
[ECO "B35"]
[PlyCount "74"]
[EventDate "2007.05.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "CBM 118 Extra"]
[Source "ChessBase"]
[SourceDate "2007.07.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.07.04"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Be3 Bg7 6. Nc3 Nf6 7. Bc4 Qa5 8. f3 Qb4 9. Bb3 Nxe4 10. fxe4 Bxd4 11. Bxd4 Qxd4 12. Qxd4 Nxd4 13. 0-0-0 Nxb3+ 14. axb3 e6 15. Nb5 Ke7 16. e5 b6 17. Nd6 Ba6 18. c4 Rhf8 19. Ne4 h5 20. Rd2 Bb7 21. Nf6 Rfd8 22. Rhd1 Bc6 23. g3 Rac8 24. Kb1 Rc7 25. Rd4 a5 26. Ne4 Bxe4+ 27. Rxe4 Rc5 28. Rd6 Rxe5 29. Rxd7+ Kxd7 30. Rxe5 Kc6 31. Kc2 Rd6 32. Rg5 Rd4 33. Kc3 Rd1 34. Kc2 Rf1 35. h4 Rf5 36. Kd3 Kc5 37. Ke4 Kb4 0-1

[Event "Tulsa Okie op"]
[Site "Tulsa"]
[Date "2007.05.26"]
[Round "2"]
[White "Umbarger, Lance"]
[Black "Baumgartner, Christopher"]
[Result "1-0"]
[ECO "D79"]
[PlyCount "73"]
[EventDate "2007.05.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "USA"]
[SourceTitle "CBM 118 Extra"]
[Source "ChessBase"]
[SourceDate "2007.07.04"]
[SourceVersion "1"]
[SourceVersionDate "2007.07.04"]
[SourceQuality "1"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. 0-0 0-0 5. d4 c5 6. c3 cxd4 7. cxd4 d5 8. Nc3 Nc6 9. e3 b6 10. a3 Ba6 11. Re1 Rc8 12. Qa4 Bb7 13. Bd2 a6 14. b4 e6 15. Rac1 Nd7 16. Qb3 b5 17. Rc2 Nb6 18. a4 Qe7 19. axb5 Nxb4 20. Rb2 a5 21. Bf1 Nc4 22. Rbb1 e5 23. dxe5 Bxe5 24. Na2 Nxd2 25. Nxd2 Bd6 26. Rec1 Ra8 27. Nxb4 axb4 28. Bg2 Ra3 29. Qd1 Rd8 30. Nf3 Bc5 31. Nd4 Rda8 32. Nc6 Bxc6 33. bxc6 b3 34. Rxb3 Ra2 35. Bxd5 Qf6 36. Qf3 Qe7 37. Rb7 1-0

[Event "North American op 21st"]
[Site "Stillwater"]
[Date "2002.09.01"]
[Round "6"]
[White "Umbarger, Lance"]
[Black "Gossell, Thomas"]
[Result "0-1"]
[ECO "A38"]
[PlyCount "86"]
[EventDate "2002.08.30"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "CBM 090 Extra"]
[Source "ChessBase"]
[SourceDate "2002.11.07"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.07"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc2 Nc6 6. g3 Nf6 7. Nc3 0-0 8. Bg2 d6 9. e4 Be6 10. Qe2 Rc8 11. Bd2 Nd7 12. Ne3 Nc5 13. Nc2 Ne5 14. b3 Ncd3+ 15. Kf1 Nxc4 16. bxc4 Bxc4 17. Ne3 Nf4 18. Qxc4 Rxc4 19. Nxc4 Nxg2 20. Rc1 d5 21. Nxd5 e6 22. Bb4 exd5 23. Bxf8 Kxf8 24. Nd2 Bh6 25. Ke2 dxe4 26. Nxe4 Bxc1 27. Rxc1 Qe8 28. Kf3 Qa4 29. Rc8+ Kg7 30. Rc7 Ne1+ 31. Ke3 Nc2+ 32. Kf3 Nd4+ 33. Kg2 Ne6 34. Nc3 Qd4 35. Rc8 b5 36. Ne2 Qe4+ 37. Kf1 Qh1+ 38. Ng1 Nd4 39. f4 Nf3 40. Kf2 Nxg1 41. a4 Qxh2+ 42. Ke3 Qe2+ 43. Kd4 Nf3+ 0-1

[Event "North American op 20th"]
[Site "Stillwater"]
[Date "2001.09.03"]
[Round "9"]
[White "Umbarger, Lance"]
[Black "Gholson, Robert"]
[Result "0-1"]
[ECO "A07"]
[PlyCount "70"]
[EventDate "2001.08.31"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bg4 4. Ne5 Bh5 5. c4 e6 6. Qb3 Qc8 7. Nc3 c6 8. d4 Nbd7 9. Bf4 Nxe5 10. Bxe5 Nd7 11. cxd5 Nxe5 12. dxe5 exd5 13. Rc1 Bc5 14. e3 0-0 15. Na4 Be7 16. Bxd5 Qg4 17. f3 Qb4+ 18. Nc3 cxd5 19. Qxd5 Rfd8 20. Qb5 Qxb5 21. Nxb5 Bb4+ 22. Nc3 Bxf3 23. 0-0 Bc6 24. Nd1 Rd2 25. Rf2 Rad8 26. Rxd2 Rxd2 27. e4 h6 28. a3 Ba5 29. b4 Bb6+ 30. Kf1 Rxh2 31. Ke1 Bxe4 32. e6 fxe6 33. a4 Bd3 34. Rc8+ Kh7 35. Nc3 Be3 0-1

[Event "North American op 20th"]
[Site "Stillwater"]
[Date "2001.09.01"]
[Round "4"]
[White "Umbarger, Lance"]
[Black "Henderson, Diana"]
[Result "1/2-1/2"]
[ECO "D02"]
[PlyCount "65"]
[EventDate "2001.08.31"]
[EventType "swiss"]
[EventRounds "10"]
[EventCountry "USA"]
[SourceTitle "EXT 2002"]
[Source "ChessBase"]
[SourceDate "2001.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2001.11.25"]
[SourceQuality "1"]

1. Nf3 Nc6 2. d4 d5 3. g3 Nf6 4. Bg2 g6 5. 0-0 Bg7 6. b3 0-0 7. Bb2 Bf5 8. c3 b5 9. Nbd2 Qd7 10. c4 bxc4 11. bxc4 Bh3 12. cxd5 Bxg2 13. Kxg2 Nxd5 14. Qc2 Rab8 15. e4 Nf6 16. d5 Rxb2 17. Qxb2 Nxe4 18. Qxg7+ Kxg7 19. dxc6 Qxc6 20. Rac1 Qd5 21. Nxe4 Qxe4 22. Rfe1 Qa4 23. Rxe7 Re8 24. Rxe8 Qxe8 25. Rxc7 Qa8 26. Rc3 a5 27. h4 Qd5 28. Re3 h6 29. Re5 Qa8 30. g4 a4 31. g5 h5 32. Re3 Qd5 33. Re5 1/2-1/2

