| Jun 26, 2026 | Sapocinic | 1–0 | Hettiarachchi | Round 11: Sapocinic, Semion - Hettiarachchi, Jeewantha Aloka | Queen's Gambit Declined: Neo-Orthodox Variation, Main Line | |
| Jun 25, 2026 | Hettiarachchi | ½–½ | Navarro Martinez | Round 10: Hettiarachchi, Jeewantha Aloka - Navarro Martinez, Victor | Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense | |
| Jun 24, 2026 | Maglioni | 0–1 | Hettiarachchi | Round 9: Maglioni, Leonardo - Hettiarachchi, Jeewantha Aloka | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jun 23, 2026 | Hettiarachchi | ½–½ | Bazilius | World Youth Chess Championship 2026 U18 Open | King's Indian Defense: Makogonov Variation | |
| Jun 22, 2026 | Lopez Garcia | ½–½ | Hettiarachchi | Round 7: Lopez Garcia, Miguel Angel - Hettiarachchi, Jeewantha Aloka | French Defense: Steinitz Variation | |
| Jun 20, 2026 | Hettiarachchi | 1–0 | Chekanov | Round 6: Hettiarachchi, Jeewantha Aloka - Chekanov, Timur | English Opening: Four Knights System, Nimzowitsch Variation | |
| Jun 19, 2026 | Marra | 0–1 | Hettiarachchi | Round 5: Marra, Lorenzo - Hettiarachchi, Jeewantha Aloka | French Defense: Advance Variation | |
| Jun 18, 2026 | Hettiarachchi | 0–1 | Biyiksiz | Round 4: Hettiarachchi, Jeewantha Aloka - Biyiksiz, Ali Batuhan | Semi-Slav Defense: Marshall Gambit, Main Line | |
| Jun 17, 2026 | Imomkuzieva | 1–0 | Hettiarachchi | Round 3: Imomkuzieva, Nilufarkhon - Hettiarachchi, Jeewantha Aloka | French Defense: Steinitz Variation | |
| Jun 16, 2026 | Hettiarachchi | 1–0 | Blum | Round 2: Hettiarachchi, Jeewantha Aloka - Blum, Fabio | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jun 15, 2026 | Perossa | 1–0 | Hettiarachchi | Round 1: Perossa, Nicolas - Hettiarachchi, Jeewantha Aloka | French Defense: Steinitz Variation | |
| May 18, 2026 | Hettiarachchi | 0–1 | Siva Kumar | Round 5: Hettiarachchi, Jeewantha Aloka - Siva Kumar, Nirish Kumar | King's Indian Defense: Makogonov Variation | |
| Jul 21, 2024 | Hettiarachchi | ½–½ | Ganepola | Round 9: Hettiarachchi, Jeewantha Aloka - Ganepola, Thushanu Yasmith | English Opening: Caro-Kann Defensive System | |
| Jul 20, 2024 | Hettiarachchi | ½–½ | Sathsindu | Round 8: Hettiarachchi, Jeewantha Aloka - Sathsindu, W M Minura | Queen's Gambit Declined | |
| Jul 19, 2024 | Alhejab | 0–1 | Hettiarachchi | Round 7: Alhejab, Meshal - Hettiarachchi, Jeewantha Aloka | French Defense: Paulsen Variation | |
| Jul 19, 2024 | Hettiarachchi | 0–1 | Sakline Mostafa | Round 6: Hettiarachchi, Jeewantha Aloka - Sakline Mostafa, Sajid | English Opening: Agincourt Defense | |
| Jul 17, 2024 | Hettiarachchi | 0–1 | Induwara | Round 4: Hettiarachchi, Jeewantha Aloka - Induwara, T H D Thisarindu | English Opening: Agincourt Defense | |
| Jul 17, 2024 | Insara | ½–½ | Hettiarachchi | Round 3: Insara, S D Nadev - Hettiarachchi, Jeewantha Aloka | English Opening: King's English Variation, Four Knights Variation, Quiet Line | |
| Jul 16, 2024 | Hettiarachchi | ½–½ | Jai Sankar Subramanian | Round 2: Hettiarachchi, Jeewantha Aloka - Jai Sankar Subramanian | English Opening: Symmetrical Variation, Two Knights Variation | |
| Jul 16, 2024 | Md Imran | ½–½ | Hettiarachchi | Round 1: Md Imran - Hettiarachchi, Jeewantha Aloka | English Opening: Symmetrical Variation, Four Knights Variation | |
| Dec 7, 2024 | Yang | 1–0 | Hettiarachchi | Round 8: Yang, Siyuan - Hettiarachchi, Jeewantha Aloka | Zukertort Opening: Reversed Grünfeld | |
| Aug 3, 2024 | Karthikeyan | 1–0 | Hettiarachchi | Round 9: Karthikeyan, P. - Hettiarachchi, Jeewantha Aloka | Semi-Slav Defense: Marshall Gambit, Main Line | |
| Aug 2, 2024 | Hettiarachchi | ½–½ | Neelash Saha | Round 8: Hettiarachchi, Jeewantha Aloka - Neelash Saha | English Opening: Agincourt Defense | |
| Aug 1, 2024 | Hettiarachchi | 0–1 | Hamidi | Round 6: Hettiarachchi, Jeewantha Aloka - Hamidi, Amir Mohammad | English Opening | |
| Jul 31, 2024 | Hettiarachchi | ½–½ | Ayushh Ravikumar | Round 4: Hettiarachchi, Jeewantha Aloka - Ayushh Ravikumar | Catalan Opening: Closed, Main Line | |
| Aug 6, 2021 | Hettiarachchi | 1–0 | Guo | World Youth Cup 2021 O12-G16 - Open 12 | King's Indian Defense: Sämisch Variation, Normal Defense | |
| Aug 6, 2021 | Hettiarachchi | 1–0 | Battistelli | World Youth Cup 2021 O12-G16 - Open 12 | Queen's Pawn Game: Zukertort Variation | |
| Aug 6, 2021 | Hettiarachchi | ½–½ | Kote | World Youth Cup 2021 O12-G16 - Open 12 | King's Indian Defense: Sämisch Variation, Normal Defense | |
| Aug 6, 2021 | Hettiarachchi | 0–1 | Arca | World Youth Cup 2021 O12-G16 - Open 12 | Caro-Kann Defense: Classical Variation | |
| Aug 6, 2021 | Hettiarachchi | 1–0 | Sarda | World Youth Cup 2021 O12-G16 - Open 12 | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Aug 6, 2021 | Sitsanis | 1–0 | Hettiarachchi | World Youth Cup 2021 O12-G16 - Open 12 | French Defense: Tarrasch Variation | |
| Aug 6, 2021 | Kamble | 1–0 | Hettiarachchi | World Youth Cup 2021 O12-G16 - Open 12 | French Defense: Tarrasch Variation | |
| Aug 6, 2021 | Kazantzoglou | 1–0 | Hettiarachchi | World Youth Cup 2021 O12-G16 - Open 12 | Horwitz Defense | |
| Aug 6, 2021 | Bianchi Santaria | 0–1 | Hettiarachchi | World Youth Cup 2021 O12-G16 - Open 12 | Queen's Pawn Game: London System | |
| Aug 6, 2021 | Tabatadze | 0–1 | Hettiarachchi | World Youth Cup 2021 O12-G16 - Open 12 | Queen's Gambit Declined: Modern Variation | |
