| May 17, 2026 | Koutlas | 1–0 | Rodrigue-Lemieux | rated rapid game | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| May 17, 2026 | Rodrigue-Lemieux | ½–½ | Koutlas | rated rapid game | English Opening: Symmetrical Variation, Botvinnik System | |
| May 16, 2026 | Koutlas | 1–0 | Mudzamba | rated rapid game | English Opening: King's English Variation | |
| May 16, 2026 | Mudzamba | 0–1 | Koutlas | rated rapid game | ? | |
| May 9, 2026 | Koutlas | 0–1 | Quirhuayo Chumbe | rated rapid game | King's Indian Defense: Normal Variation | |
| May 9, 2026 | Arfan | 1–0 | Koutlas | rated rapid game | King's Indian Attack | |
| May 9, 2026 | Koutlas | 0–1 | Makarian | rated rapid game | Réti Opening: Anglo-Slav Variation, Bogoljubow Variation, Stonewall Line | |
| May 9, 2026 | Bakhitbek | 0–1 | Koutlas | rated rapid game | French Defense: Tarrasch Variation, Open System, Main Line | |
| May 9, 2026 | Koutlas | 1–0 | Shakhzodova | rated rapid game | English Opening: Agincourt Defense | |
| May 9, 2026 | Amirali | ½–½ | Koutlas | rated rapid game | French Defense: Alekhine-Chatard Attack, Maróczy Variation | |
| May 9, 2026 | Koutlas | 1–0 | Sterns | rated rapid game | English Opening: Symmetrical Variation | |
| Apr 6, 2026 | Balakrishnan | 0–1 | Koutlas | Grenke Chess Festival 2026 Open | Sicilian Defense: Najdorf Variation, English Attack | |
| Apr 6, 2026 | Koutlas | ½–½ | Noto | Grenke Chess Festival 2026 Open | Catalan Opening: Closed | |
| Apr 5, 2026 | Indjic | ½–½ | Koutlas | Grenke Chess Festival 2026 Open | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Mar 23, 2026 | Koutlas | ½–½ | Alexakis | 3rd International Open Chess Tournament of Katerini Group A | English Opening: Agincourt Defense, Bogoljubow Defense | |
| Mar 23, 2026 | Stefanou | ½–½ | Koutlas | 3rd International Open Chess Tournament of Katerini Group A | Pirc Defense: Austrian Attack, Dragon Formation | |
| Mar 22, 2026 | Krallis | 0–1 | Koutlas | 3rd International Open Chess Tournament of Katerini Group A | King's Indian Attack, with e6 | |
| Mar 21, 2026 | Stoimenidis | 0–1 | Koutlas | 3rd International Open Chess Tournament of Katerini Group A | Indian Defense: Accelerated London System | |
| Mar 17, 2026 | Koutlas | ½–½ | Ioannidis | 3rd International Open Chess Tournament of Katerini Group A | French Defense: Exchange Variation | |
| Nov 6, 2025 | Papasimakopoulos | 1–0 | Koutlas | Round 4: Papasimakopoulos, Alexandros - Koutlas, Nikolaos | Zukertort Opening: Nimzo-Larsen Variation | |
| Oct 25, 2025 | Alekseenko | 1–0 | Koutlas | Round 7: Alekseenko, Kirill - Koutlas, Nikolaos | Italian Game: Giuoco Pianissimo, Normal | |
| Oct 24, 2025 | Koutlas | 1–0 | Luque Saiz | Round 6: Koutlas, Nikolaos - Luque Saiz, Andres | Caro-Kann Defense: Exchange Variation | |
| Oct 23, 2025 | Bourg | 1–0 | Koutlas | Round 5: Bourg, Nicolas - Koutlas, Nikolaos | Sicilian Defense: Modern Variations | |
| Oct 22, 2025 | Koutlas | 0–1 | Joie | Round 4: Koutlas, Nikolaos - Joie, Sebastien | Caro-Kann Defense: Advance Variation, Short Variation | |
| Oct 21, 2025 | Huzman | 0–1 | Koutlas | Round 3: Huzman, Alexander - Koutlas, Nikolaos | Catalan Opening: Open Defense, Classical Line | |
| Jul 5, 2025 | Koutlas | 1–0 | Deligiannis | Semi-Finals: Koutlas, Nikolaos - Deligiannis, Christos Nikolaos | English Opening: Agincourt Defense, Bogoljubow Defense | |
| Jul 4, 2025 | Kasioumis | 1–0 | Koutlas | Final: Kasioumis, Vasilios - Koutlas, Nikolaos | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Jul 4, 2025 | Papidakis | 0–1 | Koutlas | Round 7: Papidakis, Georgios - Koutlas, Nikolaos | Sicilian Defense: Moscow Variation | |
| Jul 3, 2025 | Koutlas | 1–0 | Spyratos | Round 6: Koutlas, Nikolaos - Spyratos, Nikolaos | English Opening: King's English Variation | |
| Jul 3, 2025 | Koutlas | 1–0 | Armaos | Round 4: Koutlas, Nikolaos - Armaos, Michail | King's Indian Attack | |
| Jul 3, 2025 | Kalogridis | 1–0 | Koutlas | Round 3: Kalogridis, Themistoklis - Koutlas, Nikolaos | Italian Game: Scotch Gambit, Max Lange Attack | |
| Jul 3, 2025 | Koutlas | ½–½ | Papaioannou | Round 2: Koutlas, Nikolaos - Papaioannou, Dimitrios | Queen's Gambit Declined | |
| Jul 3, 2025 | Tsamtsouris | ½–½ | Koutlas | Round 1: Tsamtsouris, Efthymios - Koutlas, Nikolaos | Queen's Gambit Declined | |
| Jul 3, 2025 | Stefanou | ½–½ | Koutlas | Round 5: Stefanou, Konstantinos - Koutlas, Nikolaos | Catalan Opening: Open Defense | |
| Mar 22, 2025 | Koutlas | 0–1 | Klimkowski | Round 7: Koutlas, Nikolaos - Klimkowski, Jan | Sicilian Defense: Moscow Variation | |
| Mar 19, 2025 | Koutlas | 0–1 | Castellanos Rodriguez | Round 5: Koutlas, Nikolaos - Castellanos Rodriguez, Renier | Sicilian Defense: Kan Variation, Polugaevsky Variation | |
| Mar 18, 2025 | Baum | ½–½ | Koutlas | Round 4: Baum, Jonasz - Koutlas, Nikolaos | King's Indian Defense: Orthodox Variation | |
| Mar 16, 2025 | Boyer | 1–0 | Koutlas | Round 2: Boyer, Mahel - Koutlas, Nikolaos | Zukertort Opening: Nimzo-Larsen Variation | |
| Feb 2, 2025 | Koutlas | 1–0 | Manukyan | Rated rapid game | Sicilian Defense: Najdorf Variation, English Attack | |
| Feb 2, 2025 | Koutlas | 1–0 | Prabhu | Rated rapid game | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Feb 2, 2025 | Koutlas | 0–1 | Taher | Rated rapid game | Alekhine Defense | |
| Feb 2, 2025 | Daggupati | 1–0 | Koutlas | Rated rapid game | Sicilian Defense: Chekhover Variation | |
| Feb 1, 2025 | Koutlas | 1–0 | Palmero Martinez | Rated rapid game | King's Indian Defense: Makogonov Variation | |
| Feb 1, 2025 | Koutlas | ½–½ | Samant Aditya S | Rated rapid game | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| Feb 1, 2025 | LAKSHYA HIRANI | 0–1 | Koutlas | Rated rapid game | Rapport-Jobava System | |
| Feb 1, 2025 | Bondarenko | 0–1 | Koutlas | Rated rapid game | English Opening: Agincourt Defense | |
| Feb 1, 2025 | Matviishen | 1–0 | Koutlas | Rated rapid game | Queen's Gambit Declined: Modern Variation, Normal Line | |
| Mar 3, 2025 | Patrelakis | ½–½ | Koutlas | Round 7: Patrelakis, Evaggelos - Koutlas, Nikolaos | Sicilian Defense: Najdorf Variation | |
| Mar 2, 2025 | Koutlas | 1–0 | Kesidis | Round 6: Koutlas, Nikolaos - Kesidis, Odyseas | English Opening: King's English Variation | |
| Mar 2, 2025 | Makris | 0–1 | Koutlas | Round 5: Makris, Spyridon-Dionysios - Koutlas, Nikolaos | Catalan Opening | |
| Mar 1, 2025 | Koutlas | 1–0 | Kyparissopoulos | Round 3: Koutlas, Nikolaos - Kyparissopoulos, Spyridon | French Defense: Exchange Variation | |
| Mar 1, 2025 | Papasimakopoulos | 1–0 | Koutlas | Round 4: Papasimakopoulos, Alexandros - Koutlas, Nikolaos | Zukertort Opening | |
| Feb 28, 2025 | Ruffenach | 0–1 | Koutlas | Round 2: Ruffenach, Alain - Koutlas, Nikolaos | Indian Defense: Knights Variation | |
| Feb 27, 2025 | Koutlas | 1–0 | Raptis | Round 1: Koutlas, Nikolaos - Raptis, Filippos | King's Indian Defense: Makogonov Variation | |
| Oct 25, 2024 | Koutlas | 1–0 | Petersson | 39th European Chess Club Cup | Dutch Defense: Hopton Attack | |
| Oct 23, 2024 | Jakobsen | 0–1 | Koutlas | 39th European Chess Club Cup | Queen's Gambit Declined | |
| Oct 21, 2024 | Koutlas | 1–0 | Masic | 39th European Chess Club Cup | Nimzowitsch Defense: Mikenas Variation | |
| Oct 20, 2024 | Arnott | 0–1 | Koutlas | 39th European Chess Club Cup | Sicilian Defense: Alapin Variation | |
| Aug 31, 2024 | Koutlas | 1–0 | Loftgaard | EYCC 2024 - O18 | Sicilian Defense: Old Sicilian | |
| Aug 30, 2024 | Davtyan | 1–0 | Koutlas | EYCC 2024 - O18 | Sicilian Defense: Najdorf Variation, English Attack, Anti-English | |
| Aug 29, 2024 | Pasztor | 1–0 | Koutlas | EYCC 2024 - O18 | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Aug 28, 2024 | Koutlas | 1–0 | Macias Pino | EYCC 2024 - O18 | Nimzo-Indian Defense: Classical Variation | |
| Aug 26, 2024 | Levin | ½–½ | Koutlas | EYCC 2024 - O18 | Queen's Gambit Declined: Orthodox Defense | |
| Aug 25, 2024 | Koutlas | ½–½ | Stalmach | EYCC 2024 - O18 | Sicilian Defense: Moscow Variation, Main Line | |
| Aug 24, 2024 | Koutlas | 1–0 | Razafindratsima | EYCC 2024 - O18 | Petrov's Defense: French Attack | |
| Aug 23, 2024 | Kusiak | 0–1 | Koutlas | EYCC 2024 - O18 | Sicilian Defense: Alapin Variation | |
| Aug 22, 2024 | Koutlas | 1–0 | Jusufi | EYCC 2024 - O18 | Sicilian Defense: Modern Variations | |
| Jul 10, 2024 | Koutlas | 1–0 | Karamichos | Greek League 2024 | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Jul 9, 2024 | Stefanou | ½–½ | Koutlas | Greek League 2024 | English Opening: Agincourt Defense, Catalan Defense, Semi-Slav Defense | |
| Jul 8, 2024 | Koutlas | ½–½ | Kasioumis | Greek League 2024 | Sicilian Defense: Najdorf Variation | |
| Jul 7, 2024 | Merkos | 0–1 | Koutlas | Greek League 2024 | Sicilian Defense: Najdorf Variation | |
| Jul 5, 2024 | Stamatiou | 1–0 | Koutlas | Greek League 2024 | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Jul 4, 2024 | Koutlas | 1–0 | Tzagarakis | Greek League 2024 | Sicilian Defense: Closed, Traditional | |
| Oct 22, 2024 | Antal | 1–0 | Koutlas | Round 3: Antal, Gergely - Koutlas, Nikolaos | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Aug 5, 2024 | Koutlas | 1–0 | Shaik Sumer Arsh | Round 9: Koutlas, Nikolaos - Shaik Sumer Arsh | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | |
| Aug 4, 2024 | Yeritsyan | 1–0 | Koutlas | Round 8: Yeritsyan, Hayk - Koutlas, Nikolaos | French Defense: Classical Variation, Burn Variation, Morozevich Line | |
| Aug 3, 2024 | Koutlas | 1–0 | Nalbandyan | Round 7: Koutlas, Nikolaos - Nalbandyan, Vahan | Caro-Kann Defense: Exchange Variation | |
| Aug 2, 2024 | Raja Rithvik R | 1–0 | Koutlas | Round 6: Raja Rithvik R - Koutlas, Nikolaos | King's Indian Attack | |
| Aug 1, 2024 | Strugnell | 0–1 | Koutlas | Round 5: Strugnell, Carl - Koutlas, Nikolaos | Indian Defense | |
| Jul 31, 2024 | Koutlas | 0–1 | Balakrishnan | Round 4: Koutlas, Nikolaos - Balakrishnan, Praveen | Four Knights Game: Spanish Variation, Rubinstein Variation Accepted | |
| Jul 30, 2024 | Koutlas | 1–0 | Bhagat Kush | Round 3: Koutlas, Nikolaos - Bhagat Kush | King's Indian Defense: Makogonov Variation | |
| Dec 11, 2022 | Koutlas | 1–0 | Marinakis | 71st Greek Championship 2022 | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Dec 10, 2022 | Trimitzios | 0–1 | Koutlas | 71st Greek Championship 2022 | Nimzo-Larsen Attack: Classical Variation | |
| Dec 9, 2022 | Koutlas | 0–1 | Mitsis | 71st Greek Championship 2022 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Dec 8, 2022 | Naoum | ½–½ | Koutlas | 71st Greek Championship 2022 | Queen's Gambit Declined: Three Knights, Vienna Variation | |
| Dec 7, 2022 | Koutlas | 1–0 | Moutousis | 71st Greek Championship 2022 | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Dec 6, 2022 | Markidis | ½–½ | Koutlas | 71st Greek Championship 2022 | Sicilian Defense: Moscow Variation | |
| Dec 5, 2022 | Koutlas | 1–0 | Alexiadis | 71st Greek Championship 2022 | Italian Game: Classical Variation, Center Attack | |
| Dec 4, 2022 | Skembris | ½–½ | Koutlas | 71st Greek Championship 2022 | English Opening: Drill Variation | |
| Dec 3, 2022 | Alexakis | 1–0 | Koutlas | 71st Greek Championship 2022 | Sicilian Defense: Chekhover Variation | |
| Aug 19, 2022 | Papaioannou | 1–0 | Koutlas | Greek Team Cup Final 8 | Queen's Gambit Declined: Modern Variation | |
| Aug 18, 2022 | Koutlas | 0–1 | Papadimitriou | Greek Team Cup Final 8 | Scandinavian Defense: Richter Variation | |
| Aug 18, 2022 | Kokkalis | 0–1 | Koutlas | Greek Team Cup Final 8 | Trompowsky Attack | |
| Aug 17, 2022 | Koutlas | 0–1 | Nteligiorgis | National Greek Team Championship | English Opening: King's English Variation | |
| Aug 16, 2022 | Koutlas | 1–0 | Stefanou | National Greek Team Championship | English Opening: Symmetrical Variation, Four Knights Variation | |
| Aug 15, 2022 | Chatzieleftheriou | ½–½ | Koutlas | National Greek Team Championship | Sicilian Defense: French Variation, Westerinen Attack | |
| Aug 14, 2022 | Koutlas | ½–½ | Spyropoulos | National Greek Team Championship | Alekhine Defense: Modern Variation, Larsen Variation | |
| Aug 13, 2022 | Blitsas | 0–1 | Koutlas | National Greek Team Championship | English Opening | |
| Aug 13, 2022 | Karamichos | ½–½ | Koutlas | National Greek Team Championship | Queen's Gambit Declined: Modern Variation | |
| Aug 12, 2022 | Koutlas | 1–0 | Triantafilidis | National Greek Team Championship | Sicilian Defense: French Variation, Normal | |
