| Apr 6, 2026 | Matthes | 1–0 | Ertan | Grenke Chess Festival 2026 Open | Nimzo-Indian Defense: Normal Variation, Botvinnik System | |
| Apr 5, 2026 | Miller | ½–½ | Matthes | Grenke Chess Festival 2026 Open | King's Indian Attack: Double Fianchetto | |
| Apr 4, 2026 | Stork | 1–0 | Matthes | Grenke Chess Festival 2026 Open | English Opening: Symmetrical Variation | |
| Apr 3, 2026 | Matthes | 0–1 | Suyarov | Grenke Chess Festival 2026 Open | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Dec 27, 2025 | Matthes | ½–½ | Teusch | Round 1: Matthes, Aaron - Teusch, Lucas | Queen's Gambit Accepted: Classical Defense, Main Line | |
| Nov 1, 2025 | Matthes | 0–1 | Kopylov | Runde 7: Matthes, Aaron - Kopylov, Daniel | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| Oct 31, 2025 | Matthes | 1–0 | Linde | Runde 3: Matthes, Aaron - Linde, Wolfgang | Catalan Opening: Closed | |
| Oct 30, 2025 | Giel | 0–1 | Matthes | Runde 2: Giel, Olaf - Matthes, Aaron | Queen's Pawn Game: Colle System, Traditional Colle | |
| Oct 30, 2025 | Matthes | 1–0 | Mueller-Ludwig | Runde 1: Matthes, Aaron - Mueller-Ludwig, Kristin | Indian Defense: King's Indian Variation, Fianchetto Variation | |
| Oct 14, 2025 | Holtel | ½–½ | Matthes | Runde 6: Holtel, Jasper - Matthes, Aaron | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Oct 14, 2025 | Matthes | ½–½ | Schulze | Runde 5: Matthes, Aaron - Schulze, Lara | Queen's Gambit Declined: Ragozin Defense | |
| Oct 14, 2025 | Avdic | 0–1 | Matthes | Runde 4: Avdic, Faris - Matthes, Aaron | Nimzo-Indian Defense: St. Petersburg Variation, Fischer Variation | |
| Jun 1, 2025 | Baldauf | 1–0 | Matthes | Round 7: Baldauf, Marco - Matthes, Aaron | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| May 31, 2025 | Herrmann | 1–0 | Matthes | Round 5: Herrmann, Jakob - Matthes, Aaron | Catalan Opening: Open Defense, Classical Line | |
| Apr 27, 2025 | Verbitsky | ½–½ | Matthes | Round 9: Verbitsky, Jaroslaw - Matthes, Aaron | Four Knights Game: Scotch Variation Accepted | |
| Apr 26, 2025 | Matthes | 1–0 | Caglar | Round 8: Matthes, Aaron - Caglar, Ertan | Dutch Defense | |
| Apr 25, 2025 | Kreutz | ½–½ | Matthes | Round 7: Kreutz, Jonas - Matthes, Aaron | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Apr 24, 2025 | Matthes | 1–0 | Torosyan | Round 6: Matthes, Aaron - Torosyan, Bagrat | London System | |
| Apr 23, 2025 | Nogly | 1–0 | Matthes | Round 5: Nogly, Christoph - Matthes, Aaron | Catalan Opening: Open Defense, Classical Line | |
| Apr 22, 2025 | Matthes | 0–1 | Klenburg | Round 4: Matthes, Aaron - Klenburg, Michael | Benko Gambit Accepted: King Walk Variation | |
| Apr 21, 2025 | Heerde | ½–½ | Matthes | Round 3: Heerde, Thomas - Matthes, Aaron | Zukertort Opening | |
| Apr 20, 2025 | Matthes | 0–1 | Hesse | Round 2: Matthes, Aaron - Hesse, Henrik | Benko Gambit Accepted: Fully Accepted Variation | |
| Apr 19, 2025 | Polzin | ½–½ | Matthes | Round 1: Polzin, Rainer - Matthes, Aaron | Sicilian Defense: Closed, Traditional | |
| Apr 2, 2025 | Thiede | 1–0 | Matthes | Final: Thiede, Lars - Matthes, Aaron | King's Indian Attack | |
| Jul 24, 2024 | Weber | 1–0 | Matthes | Round 5: Weber, Daniel - Matthes, Aaron | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Jul 20, 2024 | Ahmadinia | 1–0 | Matthes | Round 3: Ahmadinia, Ebrahim - Matthes, Aaron | Sicilian Defense: Chekhover Variation | |
| Jun 1, 2024 | Matthes | * | Galioglu | Round 8: Matthes, Aaron - Galioglu, Cem | ? | |
| May 31, 2024 | Yasmo | * | Matthes | Round 7: Yasmo, Daniil - Matthes, Aaron | ? | |
| May 30, 2024 | Matthes | * | Tan | Round 6: Matthes, Aaron - Tan, Zhong Kai | ? | |
| May 30, 2024 | Zuferi | 1–0 | Matthes | Round 5: Zuferi, Enis - Matthes, Aaron | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 29, 2024 | Matthes | * | Van den Bersselaar | Round 4: Matthes, Aaron - Van den Bersselaar, Jeroen | ? | |
| May 28, 2024 | Pruess | * | Matthes | Round 3: Pruess, David - Matthes, Aaron | ? | |
| May 27, 2024 | Shen | * | Matthes | Round 2: Shen, Tingrui - Matthes, Aaron | ? | |
| May 26, 2024 | Matthes | 0–1 | Fedorovsky | Round 1: Matthes, Aaron - Fedorovsky, Michael | Indian Defense: Dzindzi-Indian Defense | |
| Oct 27, 2024 | Matthes | ½–½ | Petrovskyi | Round 9: Matthes, Aaron - Petrovskyi, Vadym | Catalan Opening: Open Defense | |
| Oct 24, 2024 | Stalmach | 1–0 | Matthes | Round 5: Stalmach, Richard - Matthes, Aaron | Queen's Gambit Declined: Barmen Variation | |
| Oct 21, 2024 | Schmidek | 1–0 | Matthes | Round 1: Schmidek, Emil - Matthes, Aaron | Nimzo-Indian Defense: Normal Variation, Gligoric System | |
| Jun 1, 2023 | Matthes | 0–1 | Vogel | 1st Munich Pfingst Open | Catalan Opening: Open Defense, Classical Line | |
| Jul 31, 2021 | Matthes | 1–0 | Kuhn | German Championship | Queen's Pawn Game: Zukertort Variation | |
| Jul 30, 2021 | Biastoch | ½–½ | Matthes | German Championship | Sicilian Defense: Classical Variation, Anti-Sozin Variation | |
| Jul 29, 2021 | Matthes | 0–1 | Neyman | German Championship | Queen's Indian Defense: Capablanca Variation | |
| Jul 29, 2021 | Matthes | ½–½ | Lampe | German Championship | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Jul 28, 2021 | Braun | 1–0 | Matthes | German Championship | Slav Defense: Modern Line | |
| Jul 27, 2021 | Matthes | 1–0 | Belezky | German Championship | Bogo-Indian Defense: Nimzowitsch Variation | |
| Jul 27, 2021 | Kolb | ½–½ | Matthes | German Championship | Slav Defense: Exchange Variation | |
| Jul 26, 2021 | Matthes | ½–½ | Paehtz | German Championship | Benko Gambit Accepted: King Walk Variation | |
| Jul 25, 2021 | Colbow | 1–0 | Matthes | German Championship | King's Indian Attack | |
| Jun 20, 2021 | Matthes | * | Starosta | Prague Chess Festival - Open | ? | |
| Jun 19, 2021 | Voriskova | ½–½ | Matthes | Prague Chess Festival - Open | ? | |
| Jun 18, 2021 | Matthes | * | Peglau | Prague Chess Festival - Open | ? | |
| Jun 18, 2021 | Jirousek | 1–0 | Matthes | Prague Chess Festival - Open | ? | |
| Jun 17, 2021 | Matthes | 1–0 | Skokan | Prague Chess Festival - Open | ? | |
| Jun 16, 2021 | Bouska | * | Matthes | Prague Chess Festival - Open | ? | |
| Jun 15, 2021 | Real | * | Matthes | Prague Chess Festival - Open | ? | |
| Jun 14, 2021 | Matthes | * | Zak | Prague Chess Festival - Open | ? | |