| Jul 10, 2026 | Spyratos | 1–0 | Kiratzopoulos | Round 7: Spyratos, Nikolaos - Kiratzopoulos, Efthimios | Pirc Defense | |
| Jul 10, 2026 | Kiratzopoulos | 0–1 | Kouskoutis | Round 6: Kiratzopoulos, Efthimios - Kouskoutis, Georgios-Alexandros | Queen's Pawn Game: Torre Attack | |
| Jul 10, 2026 | Kiratzopoulos | 0–1 | Makridis | Round 1: Kiratzopoulos, Efthimios - Makridis, Dimitrios | King's Indian Defense: Normal Variation, Rare Defenses | |
| Jul 8, 2026 | Alexakis | 0–1 | Kiratzopoulos | Round 5: Alexakis, Georgios - Kiratzopoulos, Efthimios | Pirc Defense: Classical Variation, Quiet System, Chigorin Line | |
| Jul 6, 2026 | Rahmanidis | 1–0 | Kiratzopoulos | Round 3: Rahmanidis, Petros - Kiratzopoulos, Efthimios | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Mar 21, 2026 | Kiratzopoulos | 0–1 | Patrelakis | 3rd International Open Chess Tournament of Katerini Group A | Queen's Pawn Game: Symmetrical Variation | |
| Nov 30, 2025 | Triadu Cassa | 0–1 | Kiratzopoulos | Round 13: Triadu Cassa, Jordi - Kiratzopoulos, Efthimios | ? | |
| Nov 30, 2025 | Kukelko | 1–0 | Kiratzopoulos | Round 11: Kukelko, Alexey - Kiratzopoulos, Efthimios | Modern Defense: Pseudo-Austrian Attack | |
| Nov 30, 2025 | D`Costa | 1–0 | Kiratzopoulos | Round 7: D`Costa, Lorin - Kiratzopoulos, Efthimios | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Nov 30, 2025 | Kiratzopoulos | 0–1 | Uruci | Round 4: Kiratzopoulos, Efthimios - Uruci, Endrit | Queen's Pawn Game: Torre Attack, Gossip Variation | |
| Nov 30, 2025 | Kiratzopoulos | 0–1 | Sahidi | Round 2: Kiratzopoulos, Efthimios - Sahidi, Samir | Torre Attack: Classical Defense, Nimzowitsch Variation | |
| Nov 29, 2025 | Kiratzopoulos | 0–1 | Ondozi | Round 10: Kiratzopoulos, Efthimios - Ondozi, Murtez | Queen's Pawn Game: Zukertort Variation | |
| Nov 29, 2025 | Saraci | 1–0 | Kiratzopoulos | Round 9: Saraci, Nderim - Kiratzopoulos, Efthimios | King's Indian Attack: Symmetrical Defense | |
| Nov 29, 2025 | Kiratzopoulos | 1–0 | Upleger | Round 8: Kiratzopoulos, Efthimios - Upleger, Martin | Pseudo Queen's Indian Defense | |
| Nov 29, 2025 | Martinovic | 1–0 | Kiratzopoulos | Round 7: Martinovic, Sasa - Kiratzopoulos, Efthimios | Mexican Defense | |
| Nov 29, 2025 | Kiratzopoulos | 1–0 | Kourousis | Round 6: Kiratzopoulos, Efthimios - Kourousis, Epameinondas | Torre Attack: Classical Defense, Nimzowitsch Variation | |
| Nov 28, 2025 | Ioannidis | 1–0 | Kiratzopoulos | Round 3: Ioannidis, Evgenios - Kiratzopoulos, Efthimios | Mexican Defense | |
| Nov 28, 2025 | Kiratzopoulos | ½–½ | Jovanovic | Round 2: Kiratzopoulos, Efthimios - Jovanovic, Zoran | Queen's Pawn Game | |
| Sep 13, 2025 | Kiratzopoulos | 0–1 | Papasimakopoulos | Round 4: Kiratzopoulos, Efthimios - Papasimakopoulos, Alexandros | Torre Attack: Classical Defense | |
| May 18, 2025 | Kiratzopoulos | 0–1 | Tsaknakis | Finals: Kiratzopoulos, Efthimios - Tsaknakis, Zisis | Rapport-Jobava System | |
| May 16, 2025 | Kiratzopoulos | 0–1 | Gouloutis | Semifinals: Kiratzopoulos, Efthimios - Gouloutis, Nikolaos | Rapport-Jobava System | |
| Dec 9, 2024 | Kiratzopoulos | 0–1 | Hamitevici | Round 4: Kiratzopoulos, Efthimios - Hamitevici, Vladimir | Indian Defense: Spielmann-Indian | |
| Dec 9, 2024 | Kiratzopoulos | 0–1 | Perunovic | Round 7: Kiratzopoulos, Efthimios - Perunovic, Miodrag | Torre Attack: Classical Defense, Nimzowitsch Variation | |
| Dec 9, 2024 | Kiratzopoulos | 0–1 | Aizenberg | Round 9: Kiratzopoulos, Efthimios - Aizenberg, Benny | Dutch Defense | |
| Dec 9, 2024 | Kiratzopoulos | 1–0 | Herega | Round 11: Kiratzopoulos, Efthimios - Herega, Nejc | Queen's Pawn Game: Barry Attack | |
| Dec 9, 2024 | Kiratzopoulos | 1–0 | Zajic | Round 13: Kiratzopoulos, Efthimios - Zajic, Milan | Torre Attack: Classical Defense | |
| Dec 9, 2024 | Pancevski | 1–0 | Kiratzopoulos | Round 3: Pancevski, Filip - Kiratzopoulos, Efthimios | Modern Defense: Standard Defense | |
| Dec 9, 2024 | Krallis | ½–½ | Kiratzopoulos | Round 12: Krallis, Christos - Kiratzopoulos, Efthimios | Modern Defense: Standard Defense | |
| Dec 7, 2024 | Kiratzopoulos | 0–1 | Mastrovasilis | Round 4: Kiratzopoulos, Efthimios - Mastrovasilis, Dimitrios | Queen's Pawn Game: Symmetrical Variation | |
| Dec 7, 2024 | Subelj | 1–0 | Kiratzopoulos | Round 2: Subelj, Jan - Kiratzopoulos, Efthimios | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| Aug 13, 2022 | Kiratzopoulos | ½–½ | Gouloutis | National Greek Team Championship | Indian Defense: Knights Variation | |
| Aug 13, 2022 | Kelires | 1–0 | Kiratzopoulos | National Greek Team Championship | Mexican Defense | |
| — | Kiratzopoulos | 0–1 | Roinos | National Greek Team Championship | Queen's Pawn Game | |