| Mar 23, 2026 | Antoniou Tragoudas | 0–1 | Sidiropoulos | 3rd International Open Chess Tournament of Katerini Group B | English Opening: King's English Variation, Two Knights Variation | |
| Mar 21, 2026 | Sidiropoulos | 0–1 | Atmatsidis | 3rd International Open Chess Tournament of Katerini Group B | Nimzo-Indian Defense: Sämisch Variation | |
| Mar 15, 2026 | Sidiropoulos | 1–0 | Kleisarchakis | Round 8: Sidiropoulos, Panagiotis Arg - Kleisarchakis, Nikolaos Georgios | Queen's Gambit Declined: Three Knights Variation | |
| Sep 5, 2025 | Naci | 1–0 | Sidiropoulos | Round 8: Naci, Igli - Sidiropoulos, Panagiotis Arg | Caro-Kann Defense: Exchange Variation | |
| Sep 2, 2025 | Sidiropoulos | ½–½ | Nikakis | Round 5: Sidiropoulos, Panagiotis Arg - Nikakis, Filippos | King's Indian Defense: Kramer Variation | |
| Sep 1, 2025 | Chrysostomidis | ½–½ | Sidiropoulos | Round 4: Chrysostomidis, Alkiviadis - Sidiropoulos, Panagiotis Arg | English Opening: Anglo-Indian Defense | |
| Jul 12, 2025 | Sidiropoulos | 0–1 | Tsarouchas | Round 9: Sidiropoulos, Panagiotis Arg - Tsarouchas, Athanasios | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Jul 10, 2025 | Sidiropoulos | 1–0 | Kotovos | Round 7: Sidiropoulos, Panagiotis Arg - Kotovos, Konstantinos | Nimzo-Indian Defense: Sämisch Variation | |
| Jul 10, 2025 | Kasmeridis | 0–1 | Sidiropoulos | Round 6: Kasmeridis, Orfeas - Sidiropoulos, Panagiotis Arg | Italian Game: Two Knights Defense, Ulvestad Variation | |
| Jul 9, 2025 | Sidiropoulos | 1–0 | Michailidis | Round 5: Sidiropoulos, Panagiotis Arg - Michailidis, Georgios Savvas | Queen's Pawn Game: London System | |
| Jul 8, 2025 | Sidiropoulos | 1–0 | Patsiotis | Round 4: Sidiropoulos, Panagiotis Arg - Patsiotis, Konstantinos | Italian Game: Evans Gambit, Harding Variation | |
| Jul 6, 2025 | Kalonomos | 1–0 | Sidiropoulos | Round 3: Kalonomos, Ioannis - Sidiropoulos, Panagiotis Arg | Caro-Kann Defense: Tartakower Variation | |
| Jul 6, 2025 | Alexandrakis | 1–0 | Sidiropoulos | Round 8: Alexandrakis, Vasileios Sp - Sidiropoulos, Panagiotis Arg | Alekhine Defense: Exchange Variation | |
| Jun 15, 2025 | Tzellos | 1–0 | Sidiropoulos | Round 6: Tzellos, Dimitrios-Aggelos - Sidiropoulos, Panagiotis Arg | Caro-Kann Defense: Maróczy Variation | |
| Jun 15, 2025 | Sidiropoulos | 0–1 | Doudoulakakis | Round 5: Sidiropoulos, Panagiotis Arg - Doudoulakakis, Ioannis | Nimzo-Larsen Attack: Classical Variation | |
| Jun 15, 2025 | Sidiropoulos | 1–0 | Baltakis | Round 4: Sidiropoulos, Panagiotis Arg - Baltakis, Ioannis | Nimzo-Larsen Attack: Classical Variation | |
| Jun 14, 2025 | Sidiropoulos | 0–1 | Giannoulas | Round 1: Sidiropoulos, Panagiotis Arg - Giannoulas, Christos | Nimzo-Larsen Attack: Classical Variation | |
| Sep 1, 2024 | Gkogkolas | 1–0 | Sidiropoulos | Round 3: Gkogkolas, Georgios - Sidiropoulos, Panagiotis Arg | Caro-Kann Defense: Tartakower Variation | |
| — | Sidiropoulos | 0–1 | Petrenko | Round 1: Sidiropoulos, Panagiotis Arg - Petrenko, Tymofii | Sicilian Defense: Kopec System | |
| — | Sidiropoulos | 1–0 | Athanasopoulos | Round 1: Sidiropoulos, Panagiotis Arg - Athanasopoulos, Nikolaos NA | Nimzo-Larsen Attack: Modern Variation | |
| — | Bekiari | 1–0 | Sidiropoulos | Round 2: Bekiari, Angeliki - Sidiropoulos, Panagiotis Arg | Nimzo-Larsen Attack: Classical Variation | |
