| Jul 10, 2026 | Choullis | 0–1 | Gouloutis | Round 7: Choullis, Agisilaos Georgios - Gouloutis, Nikolaos | Indian Defense: Accelerated London System | |
| Jul 10, 2026 | Valsamis | 0–1 | Gouloutis | Round 6: Valsamis, Alexandros - Gouloutis, Nikolaos | Caro-Kann Defense: Classical Variation, Spassky Variation | |
| Jul 10, 2026 | Gouloutis | 1–0 | Stoimenidis | Round 1: Gouloutis, Nikolaos - Stoimenidis, Dimitrios | English Opening | |
| Jul 8, 2026 | Christodoulou | 1–0 | Gouloutis | Round 5: Christodoulou, Panormitis - Gouloutis, Nikolaos | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Jul 6, 2026 | Gouloutis | 0–1 | Patrelakis | Round 3: Gouloutis, Nikolaos - Patrelakis, Evaggelos | Queen's Indian Defense: Miles Variation | |
| Jul 3, 2026 | Theodorou | 1–0 | Gouloutis | Greek Chess Cup F4 | Nimzo-Indian Defense: Normal Variation, Gligoric System, Bernstein Defense | |
| Jul 2, 2026 | Gouloutis | 1–0 | Skaperdas | Greek Chess Cup F4 | Slav Defense: Exchange Variation | |
| Apr 26, 2026 | Ballas | ½–½ | Gouloutis | Finals: Ballas, Athanasios-panagiotis - Gouloutis, Nikolaos | Caro-Kann Defense: Classical Variation | |
| Apr 25, 2026 | Isaakidis | 1–0 | Gouloutis | Semifinals: Isaakidis, Alexandros - Gouloutis, Nikolaos | English Opening: Neo-Catalan | |
| Sep 13, 2025 | Gouloutis | 1–0 | Avramidou | Round 10: Gouloutis, Nikolaos - Avramidou, Anastasia | East Indian Defense | |
| Sep 13, 2025 | Gouloutis | 0–1 | Kukov | Round 8: Gouloutis, Nikolaos - Kukov, Velislav | Zukertort Opening | |
| Sep 13, 2025 | Galopoulos | ½–½ | Gouloutis | Round 7: Galopoulos, Nikolaos - Gouloutis, Nikolaos | Kangaroo Defense | |
| Sep 13, 2025 | Kourkoulos-Arditis | 1–0 | Gouloutis | Round 5: Kourkoulos-Arditis, Stamatis - Gouloutis, Nikolaos | English Opening: Anglo-Indian Defense, Nimzo-English | |
| Jul 4, 2025 | Gouloutis | 0–1 | Vlachos | Round 7: Gouloutis, Nikolaos - Vlachos, Anatole | Queen's Gambit Declined: Anti-Tartakower Variation, Petrosian Variation | |
| Jul 3, 2025 | Georgakopoulos | ½–½ | Gouloutis | Round 6: Georgakopoulos, Nikolaos K. - Gouloutis, Nikolaos | Caro-Kann Defense: Classical Variation | |
| Jul 3, 2025 | Galopoulos | 1–0 | Gouloutis | Round 3: Galopoulos, Nikolaos - Gouloutis, Nikolaos | Bogo-Indian Defense: Grünfeld Variation | |
| Jul 3, 2025 | Gouloutis | 0–1 | Tzagarakis | Round 2: Gouloutis, Nikolaos - Tzagarakis, Panagiotis | Bogo-Indian Defense: Wade-Smyslov Variation | |
| Jul 3, 2025 | Konstantelias | ½–½ | Gouloutis | Round 1: Konstantelias, Konstantinos - Gouloutis, Nikolaos | Caro-Kann Defense: Classical Variation, Lobron System | |
| Jul 3, 2025 | Christodoulou | ½–½ | Gouloutis | Round 5: Christodoulou, Panagiotis - Gouloutis, Nikolaos | Caro-Kann Defense: Classical Variation | |
| Jun 22, 2025 | Gouloutis | ½–½ | Tsolakidou | 43rd Hybrid Greek Cup F8 | East Indian Defense | |
| May 18, 2025 | Kouskoutis | ½–½ | Gouloutis | Finals: Kouskoutis, Georgios-Alexandros - Gouloutis, Nikolaos | English Opening: Agincourt Defense | |
| May 16, 2025 | Kiratzopoulos | 0–1 | Gouloutis | Semifinals: Kiratzopoulos, Efthimios - Gouloutis, Nikolaos | Rapport-Jobava System | |
| Jul 10, 2024 | Frendzas | ½–½ | Gouloutis | Greek League 2024 | Caro-Kann Defense: Exchange Variation | |
| Jul 9, 2024 | Gouloutis | ½–½ | Skembris | Greek League 2024 | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Nimzowitsch Attack | |
| Jul 5, 2024 | Gouloutis | ½–½ | Sandalakis | Greek League 2024 | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Nimzowitsch Attack | |
| Aug 16, 2022 | Gouloutis | 0–1 | Lubbe | National Greek Team Championship | Queen's Gambit Declined: Modern Variation, Normal Line | |
| Aug 15, 2022 | Gouloutis | * | Roinos | National Greek Team Championship | ? | |
| Aug 14, 2022 | Korpa | ½–½ | Gouloutis | National Greek Team Championship | Indian Defense | |
| Aug 13, 2022 | Kiratzopoulos | ½–½ | Gouloutis | National Greek Team Championship | Indian Defense: Knights Variation | |
| Aug 12, 2022 | Pavlidis | 1–0 | Gouloutis | National Greek Team Championship | Caro-Kann Defense: Advance Variation | |
| Jul 27, 2022 | Tarhan | 1–0 | Gouloutis | 31st Internation Chess Tournament | Caro-Kann Defense: Advance Variation, Short Variation | |
| Jul 29, 2021 | Georgiou | * | Gouloutis | 14th Paleochora International Tournament | ? | |
| Jul 27, 2021 | Gouloutis | ½–½ | Haug | 13th International Tournament of Paleochora | Queen's Gambit Declined: Vienna Variation, Quiet Variation | |
| Jul 26, 2021 | Gouloutis | * | Drakopoulos | 14th Paleochora International Tournament | ? | |
| Jul 26, 2021 | Gouloutis | * | Drakopoulos | 13th International Tournament of Paleochora | ? | |
| Jul 24, 2021 | Gouloutis | 0–1 | Christiansen | 13th International Tournament of Paleochora | Queen's Gambit Declined: Ragozin Defense, Vienna Variation | |
| Jul 24, 2021 | Atanasov | 0–1 | Gouloutis | 14th Paleochora International Chess Tournament 2021 | ? | |
| — | Chatzidakis | 0–1 | Gouloutis | National Greek Team Championship | Caro-Kann Defense: Classical Variation | |