| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. I Alahakoon vs A F Ker |
| 1-0 | 58 | 2014 | Tromso Olympiad | B00 Uncommon King's Pawn Opening |
| 27. D Mastrovasilis vs I Alahakoon |
| 1-0 | 40 | 2018 | Batumi Olympiad | B01 Scandinavian |
| 28. I Alahakoon vs Mohamed Ali Dima |
| 1-0 | 48 | 2018 | Batumi Olympiad | A04 Reti Opening |
| 29. T Brookfield vs I Alahakoon |
| 0-1 | 32 | 2018 | Batumi Olympiad | B93 Sicilian, Najdorf, 6.f4 |
| 30. Al Shamari Ghanem vs I Alahakoon |
| 0-1 | 45 | 2018 | Batumi Olympiad | D02 Queen's Pawn Game |
| 31. I Alahakoon vs Rijendra Rajbhandari |
| 0-1 | 36 | 2018 | Batumi Olympiad | E11 Bogo-Indian Defense |
| 32. I Alahakoon vs K Noboa Silva |
| 0-1 | 54 | 2018 | Batumi Olympiad | A46 Queen's Pawn Game |
| 33. J Picado vs I Alahakoon |
 | 0-1 | 36 | 2018 | Batumi Olympiad | C00 French Defense |
| 34. D Marjanovic vs I Alahakoon |
| 1-0 | 42 | 2018 | Batumi Olympiad | A40 Queen's Pawn Game |
| 35. I Alahakoon vs A Tate |
| ½-½ | 22 | 2020 | FIDE Online Olympiad | C67 Ruy Lopez |
| 36. S Miguel vs I Alahakoon |
| 0-1 | 34 | 2020 | FIDE Online Olympiad | D02 Queen's Pawn Game |
| 37. I Alahakoon vs S Severino |
| 1-0 | 42 | 2020 | FIDE Online Olympiad | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 38. I Alahakoon vs J G Barria Santos |
| 0-1 | 53 | 2020 | FIDE Online Olympiad | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 39. I Alahakoon vs P Oatlhotse |
| 0-1 | 35 | 2020 | FIDE Online Olympiad | B40 Sicilian |
| 40. F Berkes vs I Alahakoon |
| 1-0 | 46 | 2022 | Chennai Olympiad | D35 Queen's Gambit Declined |
| 41. I Alahakoon vs K Knowles |
| ½-½ | 44 | 2022 | Chennai Olympiad | D02 Queen's Pawn Game |
| 42. Z Stanojoski vs I Alahakoon |
| 1-0 | 60 | 2022 | Chennai Olympiad | B30 Sicilian |
| 43. M T Winston Gerald vs I Alahakoon |
| ½-½ | 60 | 2022 | Chennai Olympiad | D02 Queen's Pawn Game |
| 44. Z Amdouni vs I Alahakoon |
| 0-1 | 38 | 2022 | Chennai Olympiad | B25 Sicilian, Closed |
| 45. I Alahakoon vs I Gourlay |
| 0-1 | 27 | 2022 | Chennai Olympiad | A06 Reti Opening |
| 46. W Cu Hor vs I Alahakoon |
| 1-0 | 30 | 2022 | Chennai Olympiad | A09 Reti Opening |
| 47. I Alahakoon vs S De Gondo |
| 1-0 | 56 | 2022 | Chennai Olympiad | A04 Reti Opening |
| 48. A Abdulwahhab vs I Alahakoon |
| 0-1 | 49 | 2022 | Chennai Olympiad | B30 Sicilian |
| 49. I Alahakoon vs J D Gemy |
| 0-1 | 46 | 2022 | Chennai Olympiad | A48 King's Indian |
| 50. B Deac vs I Alahakoon |
| 1-0 | 28 | 2022 | Chennai Olympiad | E06 Catalan, Closed, 5.Nf3 |
Kibitzing
