| Apr 26, 2026 | Hasansee | 0–1 | Halangoda | Round 12: Hasansee, P Y S - Halangoda, Sayumi Sithumila | Semi-Slav Defense | |
| Apr 26, 2026 | Halangoda | ½–½ | Alwis | Round 11: Halangoda, Sayumi Sithumila - Alwis, H Sandithi Kusalya | Nimzo-Indian Defense: Classical Variation, Berlin Variation | |
| Apr 25, 2026 | Palliyage | ½–½ | Halangoda | Round 10: Palliyage, Sethumlee Devhara - Halangoda, Sayumi Sithumila | Caro-Kann Defense: Advance Variation, Short Variation | |
| Apr 25, 2026 | Halangoda | 1–0 | Jayaweera | Round 9: Halangoda, Sayumi Sithumila - Jayaweera, Sayuni Gihansa | Grünfeld Defense: Three Knights Variation, Hungarian Attack | |
| Apr 24, 2026 | Jayasundara | 0–1 | Halangoda | Round 8: Jayasundara, J M Theruni V - Halangoda, Sayumi Sithumila | Queen's Gambit Declined | |
| Apr 24, 2026 | Halangoda | * | Thanthulage | Round 7: Halangoda, Sayumi Sithumila - Thanthulage, Hesanya | ? | |
| Apr 20, 2026 | Gamaarachchi | 0–1 | Halangoda | Round 5: Gamaarachchi, G A Senaree M I - Halangoda, Sayumi Sithumila | Catalan Opening: Open Defense | |
| Apr 19, 2026 | Halangoda | ½–½ | Perera | Round 4: Halangoda, Sayumi Sithumila - Perera, B Yenuthi Sahanlee | ? | |
| Apr 19, 2026 | De Silva | ½–½ | Halangoda | Round 3: De Silva, B P Chanthuli Thanishka - Halangoda, Sayumi Sithumila | Caro-Kann Defense: Karpov Variation, Modern Variation | |
| Apr 19, 2026 | Halangoda | 0–1 | Newansa | Round 2: Halangoda, Sayumi Sithumila - Newansa, M Esandi | Nimzo-Indian Defense: Classical Variation | |
| Apr 19, 2026 | Sanudula | 1–0 | Halangoda | Round 1: Sanudula, K M Dahamdi - Halangoda, Sayumi Sithumila | Queen's Pawn Game: Symmetrical Variation | |
| Apr 19, 2026 | Gunasekara | 1–0 | Halangoda | Round 6: Gunasekara, K P K Hesara - Halangoda, Sayumi Sithumila | Caro-Kann Defense: Karpov Variation, Modern Variation | |
| Sep 30, 2025 | Halangoda | 1–0 | Divadalage | Round 11: Halangoda, Sayumi Sithumila - Divadalage, Sanya | Rat Defense: English Rat | |
| Sep 29, 2025 | Vujicic | 1–0 | Halangoda | Round 10: Vujicic, Natalija - Halangoda, Sayumi Sithumila | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Sep 28, 2025 | Halangoda | 1–0 | Dimassi | Round 9: Halangoda, Sayumi Sithumila - Dimassi, Yasmine | Grünfeld Defense: Three Knights Variation, Petrosian System | |
| Sep 27, 2025 | Zhou | 1–0 | Halangoda | Round 8: Zhou, Abigail - Halangoda, Sayumi Sithumila | Caro-Kann Defense: Karpov Variation, Modern Variation | |
| Sep 26, 2025 | Halangoda | 1–0 | Nurbol | Round 7: Halangoda, Sayumi Sithumila - Nurbol, Aiaru | Bogo-Indian Defense: Nimzowitsch Variation | |
| Sep 24, 2025 | Abibulla | ½–½ | Halangoda | Round 6: Abibulla, Inzhu - Halangoda, Sayumi Sithumila | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Sep 23, 2025 | Halangoda | 1–0 | Theng | Round 5: Halangoda, Sayumi Sithumila - Theng, Hillary Rooca | Old Indian Defense | |
| Sep 22, 2025 | Sharvaanica A S | 1–0 | Halangoda | Round 4: Sharvaanica A S - Halangoda, Sayumi Sithumila | Queen's Pawn Game: London System | |
| Sep 21, 2025 | Halangoda | 1–0 | Gasparac | Round 3: Halangoda, Sayumi Sithumila - Gasparac, Josipa | Queen's Gambit Declined: Queen's Knight Variation | |
| Sep 20, 2025 | Dorzhieva | 1–0 | Halangoda | Round 2: Dorzhieva, Sofiya - Halangoda, Sayumi Sithumila | Caro-Kann Defense: Classical Variation, Spassky Variation | |
| Sep 19, 2025 | Halangoda | 1–0 | Ametova | Round 1: Halangoda, Sayumi Sithumila - Ametova, Ameliya | Bogo-Indian Defense: Retreat Variation | |
| Oct 24, 2023 | Halangoda | ½–½ | Ahmadli | WCCC 2023 - Girls U8 | Nimzo-Indian Defense: Leningrad Variation | |
