| Mar 8, 2026 | Gunarathne | * | Blin | English Youth Championships. Top boards per section. | Ruy Lopez: Morphy Defense, Wormald Attack | |
| Mar 8, 2026 | Aggarwal | 1–0 | Gunarathne | English Youth Championships. Top boards per section. | Queen's Gambit Declined | |
| Mar 7, 2026 | Gunarathne | 1–0 | Gray | English Youth Championships. Top boards per section. | Ruy Lopez: Morphy Defense, Wormald Attack | |
| Mar 7, 2026 | Kaltenboeck | 0–1 | Gunarathne | English Youth Championships. Top boards per section. | Caro-Kann Defense: Exchange Variation | |
| Mar 7, 2026 | Gunarathne | 1–0 | Lin | English Youth Championships. Top boards per section. | Caro-Kann Defense: Panov Attack, Modern Defense | |
| Sep 21, 2024 | Gunarathne | 0–1 | Maheshwari | 2024 UK Chess Challenge Terafinal Challengers U10 | French Defense: Exchange Variation, Monte Carlo Variation | |
| Aug 3, 2024 | Nguyen | 1–0 | Gunarathne | Round 7: Nguyen, Lam Vy Le - Gunarathne, Miheli | Scandinavian Defense: Modern Variation | |
| Jul 31, 2024 | Gunarathne | 1–0 | Ewart | Round 4: Gunarathne, Miheli - Ewart, Thomas | Ruy Lopez: Berlin Defense | |
| Jul 29, 2024 | Gunarathne | 0–1 | Katukuri | Round 2: Gunarathne, Miheli - Katukuri, Aarav | Sicilian Defense: O'Kelly Variation, Normal System | |
| Jul 28, 2024 | Blin | 0–1 | Gunarathne | Round 1: Blin, Eliza - Gunarathne, Miheli | Queen's Gambit Declined | |
| Mar 3, 2024 | Gunarathne | 0–1 | Darbost | British Rapidplay - lower boards | Caro-Kann Defense: Panov Attack | |
| Mar 2, 2024 | Hutchinson | 1–0 | Gunarathne | British Rapidplay - lower boards | Queen's Pawn Game: London System | |
| Mar 2, 2024 | Gunarathne | 0–1 | Hu | British Rapidplay - lower boards | Sicilian Defense: French Variation, Normal | |
| Mar 2, 2024 | Railwani | 1–0 | Gunarathne | British Rapidplay - lower boards | Scandinavian Defense: Modern Variation | |
| Mar 2, 2024 | Gunarathne | 0–1 | Vaidyanathan | British Rapidplay - lower boards | Sicilian Defense: Accelerated Dragon, Modern Variation | |
| Aug 2, 2024 | Gunarathne | 1–0 | Wilde | Round 6: Gunarathne, Miheli - Wilde, Grace | French Defense: Knight Variation | |
| Aug 1, 2024 | Pradhan | 1–0 | Gunarathne | Round 5: Pradhan, Ayan - Gunarathne, Miheli | Scandinavian Defense: Modern Variation | |
| Jul 30, 2024 | Kulibaev | 0–1 | Gunarathne | Round 3: Kulibaev, Richard - Gunarathne, Miheli | Scandinavian Defense: Modern Variation, Gipslis Variation | |
| Sep 10, 2023 | Gunarathne | 0–1 | Fowler | 2023 UK Chess Challenge Terafinal Challengers U8 | Ruy Lopez: Morphy Defense, Caro Variation | |
| Sep 10, 2023 | Singh | 1–0 | Gunarathne | 2023 UK Chess Challenge Terafinal Challengers U8 | Scandinavian Defense: Modern Variation | |
| Sep 9, 2023 | Gunarathne | 0–1 | Xiong | 2023 UK Chess Challenge Terafinal Challengers U8 | Sicilian Defense: Lasker-Pelikan Variation, Schlechter Variation | |
| Sep 9, 2023 | Gunarathne | 0–1 | Chauhan | 2023 UK Chess Challenge Terafinal Challengers U8 | Ruy Lopez: Classical Variation, Central Variation | |
| Sep 9, 2023 | Vinoth | ½–½ | Gunarathne | 2023 UK Chess Challenge Terafinal Challengers U8 | Scandinavian Defense: Modern Variation | |
| Jul 29, 2023 | Smirnov | 0–1 | Gunarathne | British Championships: Junior Under 8 | Queen's Gambit Declined: Modern Variation | |
| Jul 28, 2023 | Gunarathne | 0–1 | Feng | British Championships: Junior Under 8 | Ruy Lopez: Berlin Defense | |
| Jul 28, 2023 | Ewart | 1–0 | Gunarathne | British Championships: Junior Under 8 | Queen's Gambit Declined: Vienna Variation, Quiet Variation | |
| Jul 27, 2023 | Sobolevski | 1–0 | Gunarathne | British Championships: Junior Under 8 | Indian Defense: London System | |
| Jul 26, 2023 | Gunarathne | 1–0 | Zheng | British Championships: Junior Under 8 | Ruy Lopez: Steinitz Defense | |
| Jul 26, 2023 | Gunarathne | 1–0 | Sandhu | British Championships: Junior Under 8 | Pirc Defense: Classical Variation | |
| Jul 25, 2023 | Gedge | ½–½ | Gunarathne | British Championships: Junior Under 8 | Scandinavian Defense: Modern Variation | |
| — | Gunarathne | 0–1 | Xiong | Round 2: Gunarathne, Miheli - Xiong, Yichen | French Defense: Exchange Variation, Monte Carlo Variation | |
| — | Gunarathne | ½–½ | Sennaroglu | Round 4: Gunarathne, Miheli - Sennaroglu, Djan | Ruy Lopez: Morphy Defense, Wormald Attack | |
| — | Gunarathne | ½–½ | Zhestilevskii | Round 6: Gunarathne, Miheli - Zhestilevskii, Stepan | Ruy Lopez: Berlin Defense | |
| — | Dobryanskyy | 0–1 | Gunarathne | Round 1: Dobryanskyy, Artur - Gunarathne, Miheli | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| — | Mulukutla | 0–1 | Gunarathne | Round 3: Mulukutla, Ayaansh - Gunarathne, Miheli | Caro-Kann Defense: Two Knights Attack | |
| — | Bartlett | ½–½ | Gunarathne | Round 5: Bartlett, William - Gunarathne, Miheli | Queen's Gambit Declined: Modern Variation | |
| — | Maksak | 1–0 | Gunarathne | Round 7: Maksak, Liubava - Gunarathne, Miheli | Caro-Kann Defense: Two Knights Attack | |
