| 23 ago 2026 | Kalogridis, Themistoklis 2265 | Bod, Marton 2145 | 0-1 | B23 Defensa Siciliana: Closed, Traditional | Kanizsa Open | 32 | Ver |
| 22 ago 2026 | Egresi, Mate 2384 | Kalogridis, Themistoklis 2265 | 1-0 | B51 Defensa Siciliana: Moscow Variation | Kanizsa Open | 26 | Ver |
| 21 ago 2026 | Kalogridis, Themistoklis 2265 | Hujbert, Florian 2429 | ½-½ | C25 Apertura Vienesa: Paulsen Variation | Kanizsa Open | 36 | Ver |
| 20 ago 2026 | Kramar, David 2341 | Kalogridis, Themistoklis 2265 | 0-1 | B57 Defensa Siciliana: Classical Variation, Sozin Attack | Kanizsa Open | 45 | Ver |
| 19 ago 2026 | Kalogridis, Themistoklis 2265 | Vanczak, Tamas 2396 | 0-1 | B15 Defensa Caro-Kann: Tartakower Variation | Kanizsa Open | 30 | Ver |
| 18 ago 2026 | Kucewicz, Piotr 2100 | Kalogridis, Themistoklis 2265 | 0-1 | E71 Defensa India de Rey: Makogonov Variation | Kanizsa Open | 68 | Ver |
| 17 ago 2026 | Kalogridis, Themistoklis 2265 | Avadhoot Lokesh Bhakti Brahme 2160 | ½-½ | A05 Apertura Zukertort | Kanizsa Open | 58 | Ver |
| 16 ago 2026 | Ajay Santhosh Parvathareddy 2480 | Kalogridis, Themistoklis 2265 | 1-0 | E71 Defensa India de Rey: Makogonov Variation | Kanizsa Open | 37 | Ver |
| 15 ago 2026 | Kalogridis, Themistoklis 2265 | Levin, Guy 2465 | ½-½ | B15 Defensa Caro-Kann: Tartakower Variation | Kanizsa Open | 83 | Ver |
| 10 jul 2026 | Stamatiou, Rodolfos 2324 | Kalogridis, Themistoklis 2293 | 1-0 | B32 Defensa Siciliana: Kalashnikov Variation | 53rd Greek Team Championship 2026 | 31 | Ver |
| 10 jul 2026 | Palaiologou, Apostolos 2133 | Kalogridis, Themistoklis 2293 | 1-0 | B56 Defensa Siciliana: Classical Variation, Fianchetto Variation | 53rd Greek Team Championship 2026 | 49 | Ver |
| 6 jul 2026 | Kalogridis, Themistoklis 2293 | Kalogridis, Antonios 2399 | ½-½ | B15 Defensa Caro-Kann: Tartakower Variation | 53rd Greek Team Championship 2026 | 53 | Ver |
| 6 jul 2026 | Kalogridis, Themistoklis 2293 | Tagkaloglou, Savvas Stefanos 2031 | 1-0 | A07 King's Indian Attack, with e6 | 53rd Greek Team Championship 2026 | 31 | Ver |
| 2 jul 2026 | Anagnostopoulos, Panagiotis 2058 | Kalogridis, Themistoklis 2293 | ½-½ | A30 Apertura Inglesa: Symmetrical Variation | Greek Chess Cup F4 | 33 | Ver |