| Muhammed, Shuaau2107 | 1-0 | Amarathunga, Kosala Sandeepa Chamikara2010 | Asian Zonal zt 3.2 2025 | 2025 |
| Kulpruethanon, Thanadon2286 | 1-0 | Amarathunga, Kosala Sandeepa Chamikara1956 | 45th Olympiad 2024 | 2024 |
| Amarathunga, Kosala Sandeepa Chamikara1956 | 1-0 | Saif, Malek2162 | 45th Olympiad 2024 | 2024 |
| Ondozi, M2371 | 1-0 | Amarathunga, Kosala Sandeepa Chamikara1956 | 45th Olympiad 2024 | 2024 |
| Amarathunga, Kosala Sandeepa Chamikara1956 | ½-½ | Ahmed Hassan2234 | 45th Olympiad 2024 | 2024 |
| Lesbros, Bernard1938 | 0-1 | Amarathunga, Kosala Sandeepa Chamikara1956 | 45th Olympiad 2024 | 2024 |
| Amarathunga, Kosala Sandeepa Chamikara1956 | 0-1 | Song, R2503 | 45th Olympiad 2024 | 2024 |
| Amarathunga, Kosala Sandeepa Chamikara1956 | ½-½ | Delgado Rosas, Alex Antonio2157 | 45th Olympiad 2024 | 2024 |
| Nguyen, Thai Dai Van2647 | 1-0 | Amarathunga, Kosala Sandeepa Chamikara1956 | 45th Olympiad 2024 | 2024 |
| Silva, David2363 | 1-0 | Amarathunga, Kosala Sandeepa Chamikara1956 | 45th Olympiad 2024 | 2024 |
| Amarathunga, Kosala Sandeepa Chamikara1956 | 1-0 | Bongo Akanga Ndjila, Barthelemy1894 | 45th Olympiad 2024 | 2024 |
| Quesada Perez, Luis Ernesto2578 | 1-0 | Amarathunga, Kosala Sandeepa Chamikara1956 | 45th Olympiad 2024 | 2024 |
| Amarathunga, Kosala Sandeepa Chamikara1992 | 0-1 | Barsov, A2324 | DINI International 2024 | 2024 |
| Deepan, C2423 | 1-0 | Amarathunga, Kosala Sandeepa Chamikara1992 | DINI International 2024 | 2024 |
| Amarathunga, Kosala Sandeepa Chamikara1992 | ½-½ | Samaranayake, Pamok Methdinu1724 | DINI International 2024 | 2024 |