| Apr 20, 2026 | Kalligeris | 1–0 | Megagiannis | Round 9: Kalligeris, Ioannis - Megagiannis, Maximos | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Apr 17, 2026 | Kalligeris | 0–1 | Kotovos | Round 6: Kalligeris, Ioannis - Kotovos, Konstantinos | Ruy Lopez: Morphy Defense | |
| Apr 15, 2026 | Kalligeris | 0–1 | Nikitakis | Round 2: Kalligeris, Ioannis - Nikitakis, Michail | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Jun 28, 2024 | Kalligeris | 0–1 | Danezis | Round 9: Kalligeris, Ioannis - Danezis, Prodromos | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Jun 27, 2024 | Skodras | 0–1 | Kalligeris | Round 8: Skodras, Dionysios Eleftherios - Kalligeris, Ioannis | Nimzo-Indian Defense | |
| Jun 26, 2024 | Kalligeris | 0–1 | Toumpakaris | Round 7: Kalligeris, Ioannis - Toumpakaris, Grigorios Emmanouil | Ruy Lopez: Bird Variation | |
| Jun 25, 2024 | Di Giorgio | 0–1 | Kalligeris | Round 6: Di Giorgio, Victor - Kalligeris, Ioannis | Sicilian Defense: Smith-Morra Gambit | |
| Jun 25, 2024 | Kalligeris | 0–1 | Nikitakis | Round 5: Kalligeris, Ioannis - Nikitakis, Michail | Ruy Lopez: Morphy Defense, Duras Variation | |
| Jun 24, 2024 | Kalonomos | 0–1 | Kalligeris | Round 4: Kalonomos, Ioannis - Kalligeris, Ioannis | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Breyer Variation | |
| Jun 23, 2024 | Kalligeris | 1–0 | Koutsionas | Round 3: Kalligeris, Ioannis - Koutsionas, Athanasios | Sicilian Defense: Moscow Variation, Main Line | |
| Jun 23, 2024 | Kotovos | ½–½ | Kalligeris | Round 2: Kotovos, Konstantinos - Kalligeris, Ioannis | Nimzo-Indian Defense: Three Knights Variation | |
| Jun 22, 2024 | Kalligeris | 1–0 | Ioannidis | Round 1: Kalligeris, Ioannis - Ioannidis, Agis | Ruy Lopez: Berlin Defense, Mortimer Trap | |
| Dec 1, 2024 | Koutsionas | 0–1 | Kalligeris | Round 6: Koutsionas, Athanasios - Kalligeris, Ioannis | Nimzo-Indian Defense | |
| Nov 30, 2024 | Kalligeris | 1–0 | Alepoudeas | Round 4: Kalligeris, Ioannis - Alepoudeas, Dimitrios | French Defense: Schlechter Variation | |
| Nov 30, 2024 | Kalligeris | 1–0 | Stefanis | Round 5: Kalligeris, Ioannis - Stefanis, Stefanos G | Ruy Lopez: Closed, Martinez Variation | |
| Nov 29, 2024 | Kalligeris | 1–0 | Loukopoulou | Round 2: Kalligeris, Ioannis - Loukopoulou, Lamprini | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Nov 29, 2024 | Danezis | 0–1 | Kalligeris | Round 3: Danezis, Prodromos - Kalligeris, Ioannis | Indian Defense: London System | |
| Nov 28, 2024 | Filippoglou | 0–1 | Kalligeris | Round 1: Filippoglou, Ioannis - Kalligeris, Ioannis | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Breyer Variation | |
