| Apr 18, 2026 | Tawankanjana | 1–0 | Arunnuntapanich | Round 8: Tawankanjana, Dhi - Arunnuntapanich, Tinnakrit | Caro-Kann Defense: Gurgenidze System | |
| Apr 18, 2026 | Arunnuntapanich | 0–1 | Kulpruethanon | Round 7: Arunnuntapanich, Tinnakrit - Kulpruethanon, Thanadon | Queen's Gambit Declined: Tartakower Defense, Makogonov Exchange Variation | |
| Apr 17, 2026 | Arunnuntapanich | 1–0 | Suwannaphong | Round 6: Arunnuntapanich, Tinnakrit - Suwannaphong, Surasit | Nimzo-Indian Defense: Kmoch Variation | |
| Apr 17, 2026 | Khumnorkaew | 1–0 | Arunnuntapanich | Round 5: Khumnorkaew, Tupfah - Arunnuntapanich, Tinnakrit | Dutch Defense: Semi-Leningrad Variation | |
| Apr 16, 2026 | Arunnuntapanich | ½–½ | Nattavutthisit | Round 4: Arunnuntapanich, Tinnakrit - Nattavutthisit, Kavin | King's Indian Attack, with e6 | |
| Apr 16, 2026 | Liukasemsarn | 0–1 | Arunnuntapanich | Round 3: Liukasemsarn, Pakornnarong - Arunnuntapanich, Tinnakrit | Modern Defense: Three Pawns Attack | |
| Apr 15, 2026 | Arunnuntapanich | 1–0 | Bunnag | Round 2: Arunnuntapanich, Tinnakrit - Bunnag, Pirat | King's Indian Defense: Petrosian Variation, Normal Defense | |
| Apr 15, 2026 | Sucharit | 0–1 | Arunnuntapanich | Round 1: Sucharit, Phop-phon - Arunnuntapanich, Tinnakrit | King's Indian Attack | |
| Sep 20, 2024 | Mejias Nunez | 1–0 | Arunnuntapanich | 45th FIDE Chess Olympiad | Sicilian Defense: Four Knights Variation | |
| Sep 19, 2024 | Arunnuntapanich | ½–½ | Kanep | 45th FIDE Chess Olympiad | Nimzo-Indian Defense: Sämisch Variation, Keres Variation | |
| Sep 18, 2024 | Elshaafi | 0–1 | Arunnuntapanich | 45th FIDE Chess Olympiad | Sicilian Defense: Four Knights Variation, Exchange Variation | |
| Sep 16, 2024 | Arunnuntapanich | ½–½ | Karacsonyi | 45th FIDE Chess Olympiad | Nimzo-Indian Defense: Kmoch Variation | |
| Sep 14, 2024 | Arunnuntapanich | 1–0 | Marjanovic | 45th FIDE Chess Olympiad | Queen's Gambit Accepted: Old Variation | |
| Sep 13, 2024 | Arunnuntapanich | 1–0 | Kalka | 45th FIDE Chess Olympiad | Queen's Gambit Declined | |
| Sep 12, 2024 | Valderrama Quiceno | 1–0 | Arunnuntapanich | 45th FIDE Chess Olympiad | English Opening: Symmetrical Variation, Four Knights Variation | |
| Feb 26, 2024 | Tinnakrit Arunnuntapanich | 1–0 | Kosaisoonthorn | Round 7: Tinnakrit Arunnuntapanich - Marwin Kosaisoonthorn | Queen's Gambit Declined: Three Knights Variation | |
| Feb 26, 2024 | Oleg Badmatsyrenov | 1–0 | Tinnakrit Arunnuntapanich | Round 6: Oleg Badmatsyrenov - Tinnakrit Arunnuntapanich | Sicilian Defense: Snyder Variation | |
| Feb 25, 2024 | Tinnakrit Arunnuntapanich | 1–0 | Ziyuan Xu | Round 5: Tinnakrit Arunnuntapanich - Ziyuan Xu | King's Indian Defense: Orthodox Variation, Glek Defense | |
| Feb 25, 2024 | Sparsh Khandelwal | ½–½ | Tinnakrit Arunnuntapanich | Round 4: Sparsh Khandelwal - Tinnakrit Arunnuntapanich | Modern Defense: Standard Line | |
| Feb 24, 2024 | Tinnakrit Arunnuntapanich | 1–0 | Erwan Douarinou | Round 3: Tinnakrit Arunnuntapanich - Erwan Douarinou | Slav Defense | |
| Feb 24, 2024 | Zechen Yu | ½–½ | Tinnakrit Arunnuntapanich | Round 2: Zechen Yu - Tinnakrit Arunnuntapanich | Modern Defense: Standard Line | |
| Feb 23, 2024 | Tinnakrit Arunnuntapanich | 1–0 | Aad Langendoen | Round 1: Tinnakrit Arunnuntapanich - Aad Langendoen | Ruy Lopez: Cozio Defense | |
