| Jul 6, 2025 | Kalogeris | 1–0 | Deligiannis | Final: Kalogeris, Ioannis - Deligiannis, Christos Nikolaos | Sicilian Defense: Moscow Variation | |
| Jul 5, 2025 | Koutlas | 1–0 | Deligiannis | Semi-Finals: Koutlas, Nikolaos - Deligiannis, Christos Nikolaos | English Opening: Agincourt Defense, Bogoljubow Defense | |
| Jul 3, 2025 | Armaos | 0–1 | Deligiannis | Round 1: Armaos, Michail - Deligiannis, Christos Nikolaos | Nimzo-Indian Defense | |
| Jun 1, 2025 | Deligiannis | 0–1 | Fragkos | Round 6: Deligiannis, Christos Nikolaos - Fragkos, Vasileios | Queen's Pawn Game: Modern Defense | |
| May 31, 2025 | Deligiannis | ½–½ | Oikonomopoulos | Round 5: Deligiannis, Christos Nikolaos - Oikonomopoulos, Filippos | King's Indian Defense: Normal Variation, Standard Development | |
| Jan 6, 2025 | Zavrakidis | 1–0 | Deligiannis | Round 7: Zavrakidis, Nikolaos - Deligiannis, Christos Nikolaos | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| Jan 5, 2025 | Deligiannis | 1–0 | Armaos | Round 6: Deligiannis, Christos Nikolaos - Armaos, Michail | Queen's Gambit Declined | |
| Jan 4, 2025 | Bartzos | 0–1 | Deligiannis | Round 5: Bartzos, Iasonas - Deligiannis, Christos Nikolaos | Sicilian Defense: Prins Variation | |
| Jan 3, 2025 | Deligiannis | 0–1 | Mastrovasilis | Round 4: Deligiannis, Christos Nikolaos - Mastrovasilis, Athanasios | Catalan Opening | |
| Jul 9, 2024 | Papadopoulos | 1–0 | Deligiannis | Greek League 2024 | Queen's Gambit Declined | |
| Jul 5, 2024 | Deligiannis | 0–1 | Panagiotakos | Greek League 2024 | Queen's Gambit Declined | |
| Dec 30, 2024 | Girvalakis | 0–1 | Deligiannis | Round 3: Girvalakis, Spyridon - Deligiannis, Christos Nikolaos | Sicilian Defense: Alapin Variation | |
| Dec 29, 2024 | Deligiannis | 1–0 | Spiliotopoulos | Round 2: Deligiannis, Christos Nikolaos - Spiliotopoulos, Spyridon | Bogo-Indian Defense: Grünfeld Variation | |
| Dec 28, 2024 | Zarakotas | 0–1 | Deligiannis | Round 1: Zarakotas, Timoleon Rafail - Deligiannis, Christos Nikolaos | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Oct 23, 2022 | Deligiannis | * | Minnican | World Amateur CC U2300 | ? | |
| Oct 22, 2022 | Papadimitriou | * | Deligiannis | World Amateur CC U2300 | ? | |
| Jul 24, 2022 | Deligiannis | 1–0 | Flasik | 15th Paleochora Open | ? | |
| Jul 23, 2022 | Drakopoulos | * | Deligiannis | 15th Paleochora Open | ? | |
| Jul 22, 2022 | Deligiannis | * | Biro | 15th Paleochora Open | ? | |
| Jul 20, 2022 | Deligiannis | * | Santiago | 15th Paleochora Open | ? | |
| Jul 18, 2022 | Ayza Leon | 1–0 | Deligiannis | 15th Paleochora Open | ? | |
| Jul 17, 2022 | Deligiannis | ½–½ | Vojtek | 15th Paleochora Open | ? | |
| Oct 25, 2021 | El Ghdamssi | * | Deligiannis | FIDE World Amateur 2021 U2300 | ? | |
| Oct 24, 2021 | Deligiannis | * | Al-Hajiri | FIDE World Amateur 2021 U2300 | ? | |
| Oct 23, 2021 | Coicev | * | Deligiannis | FIDE World Amateur 2021 U2300 | ? | |
| Oct 22, 2021 | Deligiannis | 0–1 | Zherebtsova | FIDE World Amateur 2021 U2300 | Catalan Opening: Closed | |
| Oct 21, 2021 | Andreev | * | Deligiannis | FIDE World Amateur 2021 U2300 | ? | |
| Oct 20, 2021 | Deligiannis | * | Ruzic | FIDE World Amateur 2021 U2300 | ? | |
| Oct 19, 2021 | Salim Al Maashani | * | Deligiannis | FIDE World Amateur 2021 U2300 | ? | |
| Oct 17, 2021 | Deligiannis | 0–1 | Carroll | U2300 FIDE World Amateur Championship | ? | |
| Jul 29, 2021 | Dixa | * | Deligiannis | 14th Paleochora International Tournament | ? | |
| Jul 27, 2021 | Deligiannis | * | Rahmanidis | 13th International Tournament of Paleochora | ? | |
| Jul 26, 2021 | Samaridis | * | Deligiannis | 14th Paleochora International Tournament | ? | |
| Jul 26, 2021 | Samaridis | * | Deligiannis | 13th International Tournament of Paleochora | ? | |
| Jul 24, 2021 | Deligiannis | 0–1 | Martin | 14th Paleochora International Chess Tournament 2021 | ? | |
| Jul 24, 2021 | Papalevyzakis | * | Deligiannis | 13th International Tournament of Paleochora | ? | |