| — | Barthel | ½–½ | Kurmangaliyeva | Grenke Open | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| — | Reviczki | 1–0 | Barthel | Grenke Open | Alekhine Defense: Modern Variation, Larsen Variation | |
| Oct 23, 2025 | Ketzetzis | 1–0 | Barthel | Round 5: Ketzetzis, Georgios - Barthel, Ansgar | Philidor Defense: Lion Variation, Shirov Gambit | |
| Oct 22, 2025 | Barthel | ½–½ | Setkauskas | Round 4: Barthel, Ansgar - Setkauskas, Vaidas | Sicilian Defense: Snyder Variation | |
| Jun 21, 2025 | Bjornsson | 1–0 | Barthel | Icelandic Open 2025 | Alekhine Defense: Four Pawns Attack, Main Line | |
| Jun 20, 2025 | Stefansson | 1–0 | Barthel | Icelandic Open 2025 | Alekhine Defense: Modern Variation, Larsen Variation | |
| Jun 20, 2025 | Barthel | ½–½ | Ptacnikova | Icelandic Open 2025 | Sicilian Defense: French Variation, Westerinen Attack | |
| Jun 19, 2025 | Barthel | 1–0 | Thorfinnsson | Icelandic Open 2025 | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Jun 19, 2025 | Heimisson | 1–0 | Barthel | Icelandic Open 2025 | Tarrasch Defense: Two Knights Variation | |
| Jun 18, 2025 | Arnason | 0–1 | Barthel | Icelandic Open 2025 | Czech Defense | |
| Jun 17, 2025 | Barthel | 1–0 | Asgrimsson | Icelandic Open 2025 | Italian Game: Two Knights Defense, Polerio Defense, Bogoljubow Variation | |
| Jun 16, 2025 | Barthel | ½–½ | Skarphedinsson | Icelandic Open 2025 | Nimzo-Larsen Attack: Modern Variation | |
| Oct 25, 2024 | Rechner | 0–1 | Barthel | 39th European Chess Club Cup | Alekhine Defense: Four Pawns Attack | |
| Oct 24, 2024 | Barthel | ½–½ | Hoerstmann | 39th European Chess Club Cup | London System | |
| Oct 23, 2024 | Dechamps | ½–½ | Barthel | 39th European Chess Club Cup | Alekhine Defense: Sämisch Attack | |
| Oct 22, 2024 | Hellerud | ½–½ | Barthel | 39th European Chess Club Cup | English Opening: Great Snake Variation | |
| Oct 21, 2024 | Barthel | 1–0 | Mihasi | 39th European Chess Club Cup | Scandinavian Defense: Valencian Variation | |
| Oct 20, 2024 | Kaspi | 1–0 | Barthel | 39th European Chess Club Cup | Tarrasch Defense: Classical Variation | |
| Jun 1, 2024 | Barthel | * | Rishiadithya Murali | Round 5: Barthel, Ansgar - Rishiadithya Murali | ? | |
| May 31, 2024 | Pikatz | * | Barthel | Round 4: Pikatz, Frank - Barthel, Ansgar | ? | |
| May 31, 2024 | Barthel | * | Kilthau | Round 3: Barthel, Ansgar - Kilthau, Peter | ? | |
| May 30, 2024 | Rahn | * | Barthel | Round 2: Rahn, Jakob - Barthel, Ansgar | ? | |
| Mar 17, 2024 | Fantinel | 1–0 | Barthel | Reykjavik Open 2024 | Alekhine Defense: Exchange Variation | |
| Mar 16, 2024 | Barthel | 1–0 | Winnubst | Reykjavik Open 2024 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| Mar 15, 2024 | Barthel | 0–1 | Zhu | Reykjavik Open 2024 | Sicilian Defense: Four Knights Variation, Cobra Variation | |
| Oct 28, 2023 | Besou | 1–0 | Barthel | 26. Offene Internationale Bayerische Schachmeisterschaft Tegernsee | Alekhine Defense: Modern Variation, Larsen Variation | |
| Oct 7, 2023 | Barthel | 0–1 | Vogt | European Chess Club Cup 2023 | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Oct 6, 2023 | Reck | 0–1 | Barthel | European Chess Club Cup 2023 | Alekhine Defense: Four Pawns Attack, Main Line | |
| Oct 5, 2023 | Barthel | 1–0 | Van Veenendaal | European Chess Club Cup 2023 | Modern Defense: Standard Defense | |
| Oct 1, 2023 | Bosman | 1–0 | Barthel | European Chess Club Cup 2023 | King's Indian Defense: Semi-Averbakh System | |
| Nov 13, 2022 | Barthel | * | Biedenkopf | 25th Open Bavarian Championship | ? | |
| Nov 12, 2022 | Hammerl | * | Barthel | 25th Open Bavarian Championship | ? | |
| Nov 11, 2022 | Barthel | 0–1 | Maier | 25th Open Bavarian Championship | Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation | |
| Nov 10, 2022 | Bilenko | 0–1 | Barthel | 25th Open Bavarian Championship | ? | |
| Nov 9, 2022 | Barthel | 1–0 | Mahner | 25th Open Bavarian Championship | ? | |
| Nov 8, 2022 | Rakhmangulova | 1–0 | Barthel | 25th Open Bavarian Championship | Czech Defense | |
| Nov 7, 2022 | Barthel | 1–0 | Lerchl | 25th Open Bavarian Championship | ? | |
| Nov 6, 2022 | Dietlmeier | 0–1 | Barthel | 25th Open Bavarian Championship | ? | |
| Nov 5, 2022 | Barthel | 0–1 | Gopal G.N. | 25th Open Bavarian Championship | Sicilian Defense: Najdorf Variation, Amsterdam Variation | |
| Oct 3, 2022 | Barthel | 0–1 | Korpa | 37th European Club Cup | Nimzowitsch Defense: Williams Variation | |
| Apr 12, 2022 | Barthel | 0–1 | Brunello | ROpen 2022 | Sicilian Defense: Najdorf Variation, Amsterdam Variation | |
| Apr 9, 2022 | Barthel | ½–½ | Gregersen | ROpen 2022 | Sicilian Defense: Najdorf Variation, Amsterdam Variation | |
| — | Barthel | ½–½ | Hedman | ROpen 2022 | Pirc Defense | |
| — | Dishman | 1–0 | Barthel | Reykjavik Open 2022 | Tarrasch Defense: Classical Variation, Spassky Variation | |