| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. DeFirmian vs Weeramantry |
| 1-0 | 35 |
1995 |
It (open) | B06 Robatsch |
| 27. Blatny vs Weeramantry |
| 1-0 | 39 |
1997 |
Hawaii | E62 King's Indian, Fianchetto |
| 28. A Stefanova vs Weeramantry |
| 1-0 | 24 |
1997 |
4th op Waikiki | B08 Pirc, Classical |
| 29. Weeramantry vs A Caoili |
| 1-0 | 24 |
1998 |
Saitek US Masters | C44 King's Pawn Game |
| 30. Ashley vs Weeramantry |
 | 0-1 | 43 |
1998 |
It, Philadelphia (USA) | B06 Robatsch |
| 31. Miles vs Weeramantry |
| 1-0 | 26 |
1999 |
U.S. Open (5) | E97 King's Indian |
| 32. Rozentalis vs Weeramantry |
| 1-0 | 30 |
1999 |
U.S. Open | B08 Pirc, Classical |
| 33. M Dougherty vs Weeramantry |
| 1-0 | 31 |
2000 |
World Open | E92 King's Indian |
| 34. Weeramantry vs L Filatov |
| ½-½ | 40 |
2000 |
World Open | C17 French, Winawer, Advance |
| 35. Weeramantry vs P Manning |
| 1-0 | 13 |
2000 |
World Open | B13 Caro-Kann, Exchange |
| 36. Patrick Yee vs Weeramantry |
| 1-0 | 38 |
2000 |
World Open | B06 Robatsch |
| 37. Y Shulman vs Weeramantry |
| 1-0 | 37 |
2001 |
Roman Levit Mem | E92 King's Indian |
| 38. Weeramantry vs J Gonzales |
| ½-½ | 26 |
2001 |
US Open | B02 Alekhine's Defense |
| 39. J Benjamin vs Weeramantry |
| 1-0 | 36 |
2001 |
ch-New York State | B08 Pirc, Classical |
| 40. Weeramantry vs Paschall |
| 0-1 | 26 |
2001 |
29th World Open | B23 Sicilian, Closed |
| 41. Weeramantry vs V Pupols |
| 1-0 | 69 |
2001 |
ch-New York State | C11 French |
| 42. J Fernandez vs Weeramantry |
| 1-0 | 60 |
2001 |
29th World Open | B07 Pirc |
| 43. Weeramantry vs J Troyan |
| 1-0 | 15 |
2001 |
ch-New York State | B23 Sicilian, Closed |
| 44. Weeramantry vs G Braylovsky |
| 0-1 | 66 |
2001 |
29th World Open | B23 Sicilian, Closed |
| 45. Fedorowicz vs Weeramantry |
| 1-0 | 28 |
2001 |
US Open | E62 King's Indian, Fianchetto |
| 46. Weeramantry vs K Bradshaw |
| 1-0 | 17 |
2002 |
open | C41 Philidor Defense |
| 47. Weeramantry vs Kiriakov |
| 0-1 | 30 |
2003 |
World Open: Open Section | B01 Scandinavian |
| 48. Weeramantry vs E Ciuca |
| 1-0 | 16 |
2003 |
World Open: Open Section | C44 King's Pawn Game |
| 49. A Ivanov vs Weeramantry |
| 1-0 | 19 |
2003 |
World Open: Open Section | B07 Pirc |
| 50. J Kelleher vs Weeramantry |
| 0-1 | 30 |
2003 |
World Open: Open Section | B08 Pirc, Classical |
