[Event "North American op 30th"]
[Site "Stillwater"]
[Date "2011.05.30"]
[Round "10"]
[White "Jones, Robert L"]
[Black "Lenhart, David"]
[Result "0-1"]
[ECO "B12"]
[PlyCount "88"]
[EventDate "2011.05.27"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Bd3 Bxd3 5. Qxd3 e6 6. Nf3 Qa5+ 7. Qc3 Bb4 8. Bd2 Bxc3 9. Nxc3 Qc7 10. 0-0 Ne7 11. b3 a6 12. a4 0-0 13. Ne2 Nd7 14. Ng3 Rfe8 15. Bb4 c5 16. dxc5 Nxc5 17. Nd4 Rac8 18. f4 Qb6 19. Be1 Nxb3 20. cxb3 Qxd4+ 21. Bf2 Qc3 22. Rab1 Nf5 23. Nxf5 exf5 24. b4 Rc4 25. Bc5 b6 26. Bxb6 Rxb4 27. Rxb4 Qxb4 28. a5 Rc8 29. g3 Qd2 30. Rf2 Rc1+ 31. Kg2 Qd1 32. Kh3 Rc2 33. Rxc2 Qxc2 34. Ba7 Qd2 35. e6 fxe6 36. Bb6 d4 37. Bc7 d3 38. Be5 Qxa5 39. Kh4 d2 40. h3 d1Q 41. g4 Qae1+ 42. Kh5 fxg4 43. hxg4 Qh1+ 44. Kg5 Qh6# 0-1

[Event "North American op 30th"]
[Site "Stillwater"]
[Date "2011.05.30"]
[Round "11"]
[White "Lenhart, David"]
[Black "Wright, Terry"]
[Result "1/2-1/2"]
[ECO "E99"]
[BlackElo "1988"]
[PlyCount "52"]
[EventDate "2011.05.27"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 0-0 5. e4 d6 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7 9. Ne1 Ne8 10. Be3 f5 11. f3 f4 12. Bf2 Nf6 13. Nd3 g5 14. b4 a5 15. a3 axb4 16. axb4 Rxa1 17. Qxa1 g4 18. c5 Rf7 19. Qa5 gxf3 20. gxf3 Qd7 21. cxd6 cxd6 22. Qb6 Bf8 23. Kh1 Ng6 24. Rg1 Kh8 25. Nb5 Nh5 26. Rg4 Be7 1/2-1/2

[Event "North American op 30th"]
[Site "Stillwater"]
[Date "2011.05.29"]
[Round "7"]
[White "Lenhart, David"]
[Black "Fritze, Melvin Paul"]
[Result "1/2-1/2"]
[ECO "D02"]
[BlackElo "1780"]
[PlyCount "61"]
[EventDate "2011.05.27"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 c6 4. e3 Qb6 5. b3 Bf5 6. Bd3 Bxd3 7. Qxd3 e6 8. 0-0 Be7 9. Nbd2 Nbd7 10. h3 0-0 11. c4 c5 12. Ne5 Nxe5 13. Bxe5 Nd7 14. Bg3 Nf6 15. Rab1 Rfc8 16. dxc5 Qb4 17. Bd6 Bxd6 18. cxd6 Qxd6 19. Rfc1 b6 20. Rc2 Rc7 21. e4 d4 22. e5 Qxe5 23. Nf3 Qd6 24. Qxd4 Qxd4 25. Nxd4 Rd7 26. Nb5 a6 27. Nc3 Rad8 28. Rcc1 Kf8 29. Rd1 Rxd1+ 30. Rxd1 Rxd1+ 31. Nxd1 1/2-1/2

[Event "North American op 30th"]
[Site "Stillwater"]
[Date "2011.05.28"]
[Round "6"]
[White "Lenhart, David"]
[Black "Anderson, Mark C"]
[Result "0-1"]
[ECO "D02"]
[BlackElo "1830"]
[PlyCount "54"]
[EventDate "2011.05.27"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 Nf6 3. Bf4 Bf5 4. e3 e6 5. Bd3 Bxd3 6. Qxd3 c6 7. Nbd2 Nbd7 8. 0-0 Nh5 9. Bg5 Nhf6 10. Ne5 Be7 11. f4 g6 12. c3 Nh5 13. Bxe7 Qxe7 14. Nxd7 Kxd7 15. b4 Nf6 16. b5 Rhc8 17. c4 Rc7 18. c5 Ke8 19. Rfc1 Kf8 20. a4 Ng4 21. h3 Nf6 22. Rab1 Kg8 23. Nf3 Ne4 24. Nd2 Ng3 25. a5 Qh4 26. Nf1 Ne4 27. Nd2 Qf2+ 0-1

[Event "North American op 30th"]
[Site "Stillwater"]
[Date "2011.05.28"]
[Round "4"]
[White "Van Deelen, Mike"]
[Black "Lenhart, David"]
[Result "1/2-1/2"]
[ECO "E83"]
[PlyCount "94"]
[EventDate "2011.05.27"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. f3 0-0 6. Be3 Nc6 7. Qd2 e5 8. d5 Ne7 9. g4 Ne8 10. Be2 b6 11. h4 f5 12. exf5 gxf5 13. g5 f4 14. Bf2 Bf5 15. Bd3 Qd7 16. Ne4 Kh8 17. Ne2 Rd8 18. N2c3 c6 19. h5 h6 20. gxh6 Bxh6 21. Bh4 Ra8 22. dxc6 Nxc6 23. Nd5 Nd4 24. Kf2 Qa4 25. Be7 Rf7 26. Nxd6 Nxd6 27. Bxd6 Re8 28. b3 Qc6 29. Ba3 Rg7 30. Bxf5 Nxf5 31. Qd3 Ng3 32. Rhe1 Rg5 33. Ne7 Qe6 34. Ng6+ Rxg6 35. hxg6 Qh3 36. Rg1 e4 37. Bb2+ Bg7 38. Bxg7+ Kxg7 39. Qd4+ Kg8 40. Qd5+ Re6 41. Qd8+ Kg7 42. Qd7+ Kf6 43. Qf7+ Ke5 44. Qg7+ Rf6 45. Qe7+ Re6 46. Qg7+ Rf6 47. Qe7+ Re6 1/2-1/2

[Event "North American op 30th"]
[Site "Stillwater"]
[Date "2011.05.27"]
[Round "1"]
[White "Galant, Sergey"]
[Black "Lenhart, David"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2158"]
[PlyCount "31"]
[EventDate "2011.05.27"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Bd3 Bxd3 6. Qxd3 c5 7. dxc5 Qa5+ 8. Nc3 Qxc5 9. Be3 Qc8 10. 0-0 Ne7 11. Nb5 Nf5 12. Bxa7 Bc5 13. Bxc5 Qxc5 14. g4 Ne7 15. Nd6+ Kf8 16. Ng5 1-0

[Event "North American op 30th"]
[Site "Stillwater"]
[Date "2011.05.27"]
[Round "2"]
[White "Lenhart, David"]
[Black "Winters, William"]
[Result "1-0"]
[ECO "D02"]
[PlyCount "65"]
[EventDate "2011.05.27"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. Nf3 d5 2. d4 Nf6 3. Bf4 c5 4. e3 c4 5. b3 b5 6. a4 cxb3 7. Bxb5+ Bd7 8. Bxd7+ Nbxd7 9. cxb3 Nh5 10. Bg5 h6 11. Bh4 g5 12. Ne5 Qa5+ 13. Nd2 Nxe5 14. dxe5 Ng7 15. Bg3 Nf5 16. Qc2 Rb8 17. Qxf5 Bg7 18. Qd3 0-0 19. 0-0 f5 20. exf6 Bxf6 21. Bxb8 Bxa1 22. Rxa1 Rxb8 23. Qg6+ Kf8 24. Qxh6+ Kf7 25. Nf3 Qc3 26. Nxg5+ Ke8 27. Qg6+ Kd7 28. Qe6+ Ke8 29. Rd1 Qxb3 30. Qg8+ Kd7 31. Qxd5+ Qxd5 32. Rxd5+ Kc6 33. Rd1 1-0

[Event "North American op 30th"]
[Site "Stillwater"]
[Date "2011.05.27"]
[Round "3"]
[White "Wawrzaszek, Jason"]
[Black "Lenhart, David"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "1987"]
[PlyCount "108"]
[EventDate "2011.05.27"]
[EventType "swiss"]
[EventRounds "11"]
[EventCountry "USA"]
[SourceTitle "CBM 142 Extra"]
[Source "ChessBase"]
[SourceDate "2011.06.27"]
[SourceVersion "1"]
[SourceVersionDate "2011.06.27"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Qb6 7. Qb3 Qxb3 8. axb3 Bg4 9. h3 Bd7 10. b4 g6 11. b5 Nd8 12. Be5 Bg7 13. Ne2 0-0 14. 0-0 Ne8 15. Bxg7 Kxg7 16. b3 Nd6 17. c4 Ne6 18. Nbc3 Nc7 19. Ra2 Bf5 20. Bxf5 gxf5 21. Ra4 e6 22. Nf4 Ne4 23. Nfe2 Nxc3 24. Nxc3 dxc4 25. bxc4 Rfd8 26. c5 a6 27. Rfa1 axb5 28. Rxa8 Rxa8 29. Rxa8 Nxa8 30. Nxb5 Kf8 31. f4 Ke7 32. Kf2 f6 33. Nd6 b6 34. Nc8+ Kd7 35. Nxb6+ Nxb6 36. cxb6 Kc6 37. g4 Kxb6 38. gxf5 exf5 39. Kg3 Kc6 40. Kh4 Kd5 41. Kh5 Ke4 42. d5 Kxd5 43. Kh6 Ke4 44. Kxh7 Kxf4 45. Kg6 Ke5 46. h4 f4 47. h5 f3 48. h6 f2 49. h7 f1Q 50. h8Q Qf5+ 51. Kf7 Qd7+ 52. Kg6 Qf5+ 53. Kf7 Qd7+ 54. Kg6 Qf5+ 1/2-1/2

[Event "IECC Swiss email"]
[Site "IECC email"]
[Date "1998.11.27"]
[Round "4"]
[White "Fernandes, David Manuel da Sil"]
[Black "Lenhart, David"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "1451"]
[BlackElo "1791"]
[PlyCount "86"]
[EventDate "1998.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Bxf6 gxf6 9. Na3 f5 10. Bc4 Qg5 11. Rg1 Be6 12. Nd5 Rc8 13. Nb6 Rd8 14. exf5 Qxf5 15. Nd5 Rd7 16. Qf3 Qxf3 17. gxf3 Be7 18. c3 b5 19. Bb3 Na5 20. Rd1 Nxb3 21. axb3 f5 22. c4 Bxd5 23. Rxd5 Kf7 24. Ke2 Ke6 25. Rgd1 bxc4 26. Nxc4 Rhd8 27. f4 exf4 28. Kf3 Rb8 29. Kxf4 Rxb3 30. Rxf5 Rc7 31. Rd4 Rb4 32. Re4+ Kd7 33. b3 Rxb3 34. Ra5 Rb4 35. Ne3 Rxe4+ 36. Kxe4 Rc6 37. f4 Bf8 38. Rf5 Ke8 39. Ra5 h6 40. f5 Bg7 41. Nd5 Be5 42. h3 Rc4+ 43. Kd3 Rh4 0-1

[Event "IECC Swiss email"]
[Site "IECC email"]
[Date "1997.10.19"]
[Round "?"]
[White "Lenhart, David"]
[Black "Hassan, William"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "1777"]
[BlackElo "1724"]
[PlyCount "67"]
[EventDate "1997.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nc6 6. Nf3 c4 7. Bc2 Be7 8. Nbd2 Nh5 9. 0-0 Nxf4 10. exf4 0-0 11. Re1 Bd7 12. g3 h6 13. Qe2 Re8 14. Ne5 Nxe5 15. fxe5 Rc8 16. f4 Qb6 17. Rab1 Qa6 18. a3 Rb8 19. Nf3 Rbd8 20. Rf1 Rc8 21. Qg2 Rc6 22. g4 Rcc8 23. Qh3 Ba4 24. Rf2 Bxc2 25. Rxc2 Qa4 26. Rg2 Qb3 27. Qg3 a5 28. g5 hxg5 29. Nxg5 Bxg5 30. Qxg5 g6 31. Qh6 Re7 32. h4 Qa2 33. Rf1 b5 34. h5 1-0

[Event "IECC Swiss email"]
[Site "IECC email"]
[Date "1997.??.??"]
[Round "?"]
[White "Labelle, Christian"]
[Black "Lenhart, David"]
[Result "1/2-1/2"]
[ECO "B13"]
[PlyCount "47"]
[EventDate "1997.??.??"]
[EventType "tourn (corr)"]
[EventRounds "6"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. c5 e5 6. Nc3 exd4 7. Qxd4 Nc6 8. Bb5 Bd7 9. Bxc6 bxc6 10. Nge2 Rb8 11. b4 Be7 12. Bf4 Ra8 13. 0-0 0-0 14. Qd2 Re8 15. Nd4 a5 16. b5 Rc8 17. bxc6 Bxc6 18. Rab1 Bxc5 19. Nxc6 Rxc6 20. Rb8 Rc8 21. Rxc8 Qxc8 22. Nxd5 Nxd5 23. Qxd5 Re2 24. Bd2 1/2-1/2

[Event "IECC email"]
[Site "IECC email"]
[Date "1997.??.??"]
[Round "?"]
[White "Lenhart, David"]
[Black "Westerlund, Berndt"]
[Result "0-1"]
[ECO "C92"]
[PlyCount "92"]
[EventDate "1997.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 0-0 8. c3 d6 9. h3 Re8 10. d4 Bb7 11. Nbd2 Bf8 12. d5 Ne7 13. Nf1 g6 14. Bg5 Bg7 15. a4 Qd7 16. axb5 axb5 17. Qd3 h6 18. Bxf6 Bxf6 19. Ne3 Kh7 20. Ng4 Bg7 21. Ne3 Rxa1 22. Rxa1 Ra8 23. Rxa8 Bxa8 24. Qb1 Bb7 25. Qa2 Ng8 26. Qa7 Bc8 27. Bc2 c5 28. Qxd7 Bxd7 29. b4 c4 30. Kf1 Nf6 31. h4 Ng4 32. Nxg4 Bxg4 33. Nd2 Bd7 34. Bd1 h5 35. Ke2 f5 36. Bc2 f4 37. Kf1 Bf6 38. g3 g5 39. hxg5 Bxg5 40. Nf3 Kh6 41. Nxg5 Kxg5 42. Kg2 Kg4 43. f3+ Kg5 44. g4 hxg4 45. Bd1 Kh4 46. Kf2 Kh3 0-1

[Event "IECC email"]
[Site "IECC email"]
[Date "1997.??.??"]
[Round "?"]
[White "Westerlund, Berndt"]
[Black "Lenhart, David"]
[Result "1/2-1/2"]
[ECO "E18"]
[PlyCount "75"]
[EventDate "1997.??.??"]
[EventType "tourn (corr)"]
[EventRounds "12"]
[SourceTitle "Corr 2008"]
[Source "ChessBase"]
[SourceDate "2008.06.24"]
[SourceVersion "1"]
[SourceVersionDate "2008.06.24"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. 0-0 0-0 7. Nc3 d5 8. Ne5 c5 9. cxd5 exd5 10. dxc5 bxc5 11. Qb3 Qb6 12. Nxd5 Nxd5 13. Bxd5 Qxb3 14. Bxb3 Nc6 15. Nxc6 Bxc6 16. Bc4 Bf6 17. Be3 Bxb2 18. Bxc5 Bxa1 19. Bxf8 Kxf8 20. Rxa1 Rb8 21. Rc1 Rb2 22. f3 a5 23. Bd3 Bd5 24. a4 Rb4 25. Rc5 Bb3 26. Rxa5 Rxa4 27. Rxa4 Bxa4 28. e4 Ke7 29. Kf2 g6 30. f4 f6 31. Ke3 Bd7 32. h4 h6 33. Kd4 Be8 34. g4 Bd7 35. Be2 Be8 36. e5 g5 37. hxg5 hxg5 38. f5 1/2-1/2

