| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. M De La Cruz vs P R Senanayake |
 | 0-1 | 58 |
2004 |
36th Olympiad, Women | E20 Nimzo-Indian |
| 2. P R Senanayake vs M Wafa |
 | 1-0 | 48 |
2004 |
36th Olympiad, Women | C45 Scotch Game |
| 3. P R Senanayake vs K Schmidt |
 | 1-0 | 21 |
2004 |
36th Olympiad, Women | C44 King's Pawn Game |
| 4. J Jackova vs P R Senanayake |
| 1-0 | 32 |
2004 |
36th Olympiad, Women | C53 Giuoco Piano |
| 5. P R Senanayake vs A B Jensen |
| ½-½ | 30 |
2006 |
37th Chess Olympiad: Women | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 6. P R Senanayake vs M Roslina |
| ½-½ | 27 |
2006 |
37th Chess Olympiad: Women | C05 French, Tarrasch |
| 7. A Baptista vs P R Senanayake |
| ½-½ | 71 |
2006 |
37th Chess Olympiad: Women | B70 Sicilian, Dragon Variation |
| 8. P R Senanayake vs B Arosemena |
| 1-0 | 21 |
2006 |
37th Chess Olympiad: Women | C47 Four Knights |
| 9. P R Senanayake vs Z Basil Ghazala |
| 1-0 | 26 |
2006 |
37th Chess Olympiad: Women | C47 Four Knights |
| 10. S Gonchar vs P R Senanayake |
| 1-0 | 55 |
2006 |
37th Chess Olympiad: Women | E12 Queen's Indian |
| 11. P Glewis vs P R Senanayake |
| 0-1 | 27 |
2006 |
37th Chess Olympiad: Women | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
| 12. A Hamza vs P R Senanayake |
| 1-0 | 43 |
2010 |
Chess Olympiad (Women) | D30 Queen's Gambit Declined |
| 13. P R Senanayake vs G M Alattar |
| 1-0 | 55 |
2010 |
Chess Olympiad (Women) | A46 Queen's Pawn Game |
| 14. P R Senanayake vs C M Sihite |
| 0-1 | 39 |
2010 |
Chess Olympiad (Women) | D00 Queen's Pawn Game |
| 15. P R Senanayake vs C Jorgensen |
| 0-1 | 67 |
2010 |
Chess Olympiad (Women) | D00 Queen's Pawn Game |
| 16. Krishna Gray vs P R Senanayake |
| 0-1 | 38 |
2010 |
Chess Olympiad (Women) | B90 Sicilian, Najdorf |
| 17. P R Senanayake vs K Havlikova |
| 0-1 | 40 |
2010 |
Chess Olympiad (Women) | A48 King's Indian |
| 18. Thi Mai Hung Nguyen vs P R Senanayake |
| 1-0 | 32 |
2010 |
Chess Olympiad (Women) | A45 Queen's Pawn Game |
| 19. B Ankhchimeg vs P R Senanayake |
| 1-0 | 35 |
2010 |
Chess Olympiad (Women) | B22 Sicilian, Alapin |
| 20. K Al-Zarouni vs P R Senanayake |
| 0-1 | 48 |
2010 |
Chess Olympiad (Women) | B22 Sicilian, Alapin |