| — | Ciolek | 1–0 | Tonndorf | Grenke Open | Nimzo-Indian Defense: Normal Variation | |
| Jun 7, 2026 | Tonndorf | ½–½ | Lichtmannecker | Round 4: Tonndorf, Matthias - Lichtmannecker, Daniel | King's Indian Attack | |
| Jun 6, 2026 | Bertholee | ½–½ | Tonndorf | Round 3: Bertholee, Rob - Tonndorf, Matthias | Zukertort Opening | |
| Jun 1, 2026 | Mueer | ½–½ | Tonndorf | Round 5: Mueer, Sebastian - Tonndorf, Matthias | Nimzo-Indian Defense: Sämisch Variation | |
| Apr 3, 2026 | Sivanandan | 1–0 | Tonndorf | X Open Semana Santa 2026 - Grupo A | Sicilian Defense: Hyperaccelerated Dragon | |
| Apr 2, 2026 | Tonndorf | 0–1 | Narayanan S L | X Open Semana Santa 2026 - Grupo A | King's Indian Attack | |
| Mar 29, 2026 | Riemay | ½–½ | Tonndorf | Round 5: Riemay, David - Tonndorf, Matthias | Sicilian Defense: Hyperaccelerated Dragon | |
| Mar 28, 2026 | Tonndorf | ½–½ | Gramb | Round 4: Tonndorf, Matthias - Gramb, Marius | King's Indian Attack | |
| Jan 5, 2026 | Tonndorf | ½–½ | Nechitaylo | Runde 7: Tonndorf, Matthias - Nechitaylo, Nikita | English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense | |
| Jan 4, 2026 | Holtwessels | 0–1 | Tonndorf | Runde 6: Holtwessels, Jan - Tonndorf, Matthias | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jan 4, 2026 | Tonndorf | ½–½ | Weigand | Runde 5: Tonndorf, Matthias - Weigand, Anton | King's Indian Attack | |
| Jan 3, 2026 | Meiwes | ½–½ | Tonndorf | Runde 4: Meiwes, Thore - Tonndorf, Matthias | English Defense | |
| Jan 3, 2026 | Tonndorf | 0–1 | von Mettenheim | Runde 3: Tonndorf, Matthias - von Mettenheim, Johannes | King's Indian Defense: Semi-Averbakh System | |
| Jan 2, 2026 | Sauer | 0–1 | Tonndorf | Runde 2: Sauer, Tim - Tonndorf, Matthias | English Opening: Anglo-Indian Defense, Nimzo-English | |
| Jan 2, 2026 | Tonndorf | ½–½ | Bargsten | Runde 1: Tonndorf, Matthias - Bargsten, Justus | King's Indian Attack, with e6 | |
| Nov 2, 2025 | Tonndorf | 0–1 | Sofronie | Benidorm Chess Open A 2025 | Scotch Game: Mieses Variation | |
| Nov 1, 2025 | Serarols Mabras | 0–1 | Tonndorf | Benidorm Chess Open A 2025 | Nimzo-Indian Defense: Normal Variation | |
| Oct 31, 2025 | Dudarec | 0–1 | Tonndorf | Benidorm Chess Open A 2025 | Sicilian Defense: Wing Gambit, Marshall Variation | |
| Oct 30, 2025 | Tonndorf | ½–½ | Hernandez | Benidorm Chess Open A 2025 | Sicilian Defense: Closed | |
| Oct 29, 2025 | Tonndorf | 1–0 | Sanchez Barbado | Benidorm Chess Open A 2025 | Sicilian Defense: French Variation | |
| Oct 28, 2025 | Ezra Paul Chambers | 1–0 | Tonndorf | Benidorm Chess Open A 2025 | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Oct 28, 2025 | Tonndorf | 1–0 | Fernandez Manrique | Benidorm Chess Open A 2025 | French Defense: Advance Variation, Paulsen Attack | |
| Oct 10, 2025 | Lumachi | 1–0 | Tonndorf | Round 2: Lumachi, Gabriele - Tonndorf, Matthias | Bogo-Indian Defense: Vitolins Variation | |
| May 25, 2025 | Tonndorf | ½–½ | von Mettenheim | Round 5: Tonndorf, Matthias - von Mettenheim, Johannes | English Opening: Agincourt Defense | |
| May 25, 2025 | Stelmaszyk | 1–0 | Tonndorf | Round 4: Stelmaszyk, Nico - Tonndorf, Matthias | Caro-Kann Defense: Two Knights Attack, Mindeno Variation | |
| May 24, 2025 | Tonndorf | 0–1 | Bargsten | Round 3: Tonndorf, Matthias - Bargsten, Justus | English Opening: Agincourt Defense | |
| May 23, 2025 | Tonndorf | 0–1 | Greiving | Round 1: Tonndorf, Matthias - Greiving, Felix | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| May 22, 2025 | Mueer | 1–0 | Tonndorf | Round 2: Mueer, Sebastian - Tonndorf, Matthias | Nimzo-Indian Defense: Kmoch Variation | |
| May 15, 2025 | Ferro Martinez | 0–1 | Tonndorf | Round 9: Ferro Martinez, Damian - Tonndorf, Matthias | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| May 14, 2025 | Tonndorf | 0–1 | Eckert | Round 8: Tonndorf, Matthias - Eckert, Doug | Ruy Lopez: Morphy Defense | |
| May 13, 2025 | Fornieles Bretones | 0–1 | Tonndorf | Round 7: Fornieles Bretones, Antonio - Tonndorf, Matthias | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| May 13, 2025 | Tonndorf | 0–1 | Skytte | Round 6: Tonndorf, Matthias - Skytte, Rasmus | Modern Defense: Pseudo-Austrian Attack | |
| May 12, 2025 | Del Rio De Angelis | 1–0 | Tonndorf | Round 5: Del Rio De Angelis, Salvador G. - Tonndorf, Matthias | Yusupov-Rubinstein System | |
| May 11, 2025 | Tonndorf | 1–0 | Semprun Martinez | Round 4: Tonndorf, Matthias - Semprun Martinez, Fernando | English Opening: Anglo-Indian Defense | |
| May 11, 2025 | Corotcova | 0–1 | Tonndorf | Round 3: Corotcova, Anastasia - Tonndorf, Matthias | Indian Defense: Knights Variation | |
| May 10, 2025 | Vieito Ribelles | 0–1 | Tonndorf | Round 1: Vieito Ribelles, Ariadna - Tonndorf, Matthias | Bogo-Indian Defense: Vitolins Variation | |
| May 7, 2025 | Tonndorf | 0–1 | Girel | Round 2: Tonndorf, Matthias - Girel, Joseph | French Defense: Advance Variation, Euwe Variation | |
| Apr 18, 2025 | Tonndorf | 0–1 | Flores Quillas | Semana Santa A. 2025 | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Nov 2, 2024 | Tonndorf | 0–1 | Meins | Round 8: Tonndorf, Matthias - Meins, Gerlef | Sicilian Defense: Richter-Rauzer Variation, Classical Variation | |
| Oct 31, 2024 | Ernst | 1–0 | Tonndorf | Round 6: Ernst, Robert - Tonndorf, Matthias | Sicilian Defense: Scheveningen Variation, English Attack, with Qd2 | |
| Oct 30, 2024 | Tonndorf | * | Malinowsky | Round 5: Tonndorf, Matthias - Malinowsky, Levi | ? | |
| Oct 29, 2024 | Spieker | 0–1 | Tonndorf | Round 4: Spieker, Hans-Joachim - Tonndorf, Matthias | English Opening: Symmetrical Variation | |
| Oct 27, 2024 | Priyanka Nutakki | 1–0 | Tonndorf | Round 2: Priyanka Nutakki - Tonndorf, Matthias | Indian Defense | |
| Jul 28, 2024 | Heermann | * | Tonndorf | Round 6: Heermann, Kai - Tonndorf, Matthias | ? | |
| Jul 28, 2024 | Tonndorf | ½–½ | Sickmann | Round 7: Tonndorf, Matthias - Sickmann, Lisa | Sicilian Defense: Closed | |
| Jul 27, 2024 | Tonndorf | 0–1 | Lenhardt | Round 5: Tonndorf, Matthias - Lenhardt, Manfred | Modern Defense: Standard Line | |
| Jul 27, 2024 | Laubsch | 1–0 | Tonndorf | Round 4: Laubsch, Bernd - Tonndorf, Matthias | Sicilian Defense: Lasker-Pelikan Variation | |
| Jul 26, 2024 | Tonndorf | 1–0 | Freise | Round 3: Tonndorf, Matthias - Freise, Linus | Scandinavian Defense: Main Line | |
| Jul 26, 2024 | Solar | 0–1 | Tonndorf | Round 2: Solar, Peter - Tonndorf, Matthias | Indian Defense | |
| Jul 25, 2024 | Tonndorf | 1–0 | Kraeuter | Round 1: Tonndorf, Matthias - Kraeuter, Paavo Alexander | French Defense: Advance Variation, Main Line | |
| Jun 9, 2024 | Tonndorf | 0–1 | Stotyn | Round 4: Tonndorf, Matthias - Stotyn, Fabian | Sicilian Defense: Closed, Traditional | |
| Jun 8, 2024 | Tonndorf | ½–½ | Buchal | Round 3: Tonndorf, Matthias - Buchal, Stephan | Modern Defense: Standard Line | |
| Jun 8, 2024 | Bargsten | 0–1 | Tonndorf | Round 2: Bargsten, Justus - Tonndorf, Matthias | Sicilian Defense: Kan Variation, Knight Variation | |
| Jun 7, 2024 | Tonndorf | 0–1 | Kozik | Round 1: Tonndorf, Matthias - Kozik, Andreas | French Defense: Advance Variation, Paulsen Attack | |
| Mar 31, 2024 | Weber | 1–0 | Tonndorf | Grenke Open | Sicilian Defense: French Variation | |
| Mar 30, 2024 | Tonndorf | * | De Schampheleire | new tournament description | Scotch Game: Schmidt Variation | |
| Mar 30, 2024 | Scholz | 0–1 | Tonndorf | Grenke Open | Nimzo-Indian Defense: Classical Variation, Berlin Variation, Pirc Variation | |
| Dec 30, 2024 | Tonndorf | 0–1 | Filgueiras | Round 8: Tonndorf, Matthias - Filgueiras, Nathan Felipe | Scotch Game: Schmidt Variation | |
| Dec 30, 2024 | Bartakke | * | Tonndorf | Round 9: Bartakke, Amardeep S. - Tonndorf, Matthias | ? | |
| Dec 29, 2024 | Piccoli | * | Tonndorf | Round 6: Piccoli, Lucas Fonseca - Tonndorf, Matthias | ? | |
| Dec 29, 2024 | Mitul K H | 0–1 | Tonndorf | Round 7: Mitul K H - Tonndorf, Matthias | Sicilian Defense: Kan Variation, Knight Variation | |
| Dec 28, 2024 | Tonndorf | 0–1 | Piedra Salabarria | Round 5: Tonndorf, Matthias - Piedra Salabarria, Ernesto | Sicilian Defense: Closed, Traditional | |
| Dec 28, 2024 | Ilinca | 1–0 | Tonndorf | Round 4: Ilinca, Felix-Antonio - Tonndorf, Matthias | Sicilian Defense: French Variation, Westerinen Attack | |
| Dec 27, 2024 | Tonndorf | ½–½ | Vinuesa Sorli | Round 3: Tonndorf, Matthias - Vinuesa Sorli, Ruben | English Opening: Anglo-Indian Defense | |
| Dec 27, 2024 | Perez Fernandez | * | Tonndorf | Round 2: Perez Fernandez, Arys - Tonndorf, Matthias | ? | |
| Dec 26, 2024 | Tonndorf | * | Atharva Kale | Round 1: Tonndorf, Matthias - Atharva Kale | ? | |
| Dec 7, 2024 | Tonndorf | 1–0 | Mittelstaedt | Round 1: Tonndorf, Matthias - Mittelstaedt, Hendrik | Latvian Gambit | |
| Dec 7, 2024 | Tonndorf | 1–0 | Wetterau | Round 3: Tonndorf, Matthias - Wetterau, Nathanael | Petrov's Defense | |
| Dec 7, 2024 | Tonndorf | 1–0 | Schoengart | Round 5: Tonndorf, Matthias - Schoengart, Ralf | Caro-Kann Defense: Two Knights Attack | |
| Dec 7, 2024 | Tonndorf | 1–0 | Tarasenko | Round 7: Tonndorf, Matthias - Tarasenko, Nazar | Sicilian Defense: Closed | |
| Dec 7, 2024 | Tonndorf | 1–0 | Zehe | Round 9: Tonndorf, Matthias - Zehe, Marc-Kevin | Sicilian Defense: Closed | |
| Dec 7, 2024 | Tonndorf | 1–0 | Voege | Round 11: Tonndorf, Matthias - Voege, Tobias | French Defense: Advance Variation | |
| Dec 7, 2024 | Tonndorf | ½–½ | Hagemann | Round 13: Tonndorf, Matthias - Hagemann, Sven | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Dec 7, 2024 | Tonndorf | ½–½ | Ewert | Round 15: Tonndorf, Matthias - Ewert, Hannes | Scotch Game: Schmidt Variation | |
| Dec 7, 2024 | Tonndorf | 0–1 | Schulze | Round 16: Tonndorf, Matthias - Schulze, Torben, Dr. | Nimzowitsch Defense: Williams Variation | |
| Dec 7, 2024 | Tonndorf | 1–0 | Sauer | Round 18: Tonndorf, Matthias - Sauer, Tim | Sicilian Defense: Closed | |
| Dec 7, 2024 | Tonndorf | 1–0 | Happe | Round 20: Tonndorf, Matthias - Happe, Reinhold | Elephant Gambit | |
| Dec 7, 2024 | Tonndorf | 0–1 | Koelling | Round 22: Tonndorf, Matthias - Koelling, Jonah | Sicilian Defense: Closed | |
| Dec 7, 2024 | Boettcher | 0–1 | Tonndorf | Round 2: Boettcher, Christian, Dr. - Tonndorf, Matthias | Sicilian Defense: French Variation | |
| Dec 7, 2024 | Stotyn | 0–1 | Tonndorf | Round 4: Stotyn, Fabian - Tonndorf, Matthias | Sicilian Defense: Snyder Variation | |
| Dec 7, 2024 | Hampel | 0–1 | Tonndorf | Round 6: Hampel, Felix - Tonndorf, Matthias | English Opening | |
| Dec 7, 2024 | Weisser | 0–1 | Tonndorf | Round 8: Weisser, Andreas - Tonndorf, Matthias | Nimzo-Larsen Attack: Symmetrical Variation | |
| Dec 7, 2024 | Schmitt | 0–1 | Tonndorf | Round 10: Schmitt, Dirk - Tonndorf, Matthias | Indian Defense | |
| Dec 7, 2024 | Koehne | 0–1 | Tonndorf | Round 12: Koehne, Arno - Tonndorf, Matthias | Nimzo-Indian Defense: Three Knights Variation | |
| Dec 7, 2024 | Lehmann | 0–1 | Tonndorf | Round 14: Lehmann, Holger - Tonndorf, Matthias | Nimzo-Indian Defense: Sämisch Variation | |
| Dec 7, 2024 | Buchenau | 1–0 | Tonndorf | Round 17: Buchenau, Frank - Tonndorf, Matthias | Sicilian Defense: Kan Variation, Gipslis Variation | |
| Dec 7, 2024 | Drygala | 1–0 | Tonndorf | Round 19: Drygala, Lars - Tonndorf, Matthias | Indian Defense: London System | |
| Dec 7, 2024 | Muendoerfer | 0–1 | Tonndorf | Round 21: Muendoerfer, Sebastian - Tonndorf, Matthias | Bogo-Indian Defense: Vitolins Variation | |
| Dec 7, 2024 | Weber | 0–1 | Tonndorf | Round 23: Weber, Dirk - Tonndorf, Matthias | Sicilian Defense: Closed | |
| Aug 1, 2024 | Tonndorf | 0–1 | Boehme | Round 2: Tonndorf, Matthias - Boehme, Sebastian | English Opening: Agincourt Defense | |
| Jan 7, 2023 | Tonndorf | 0–1 | Polster | Lower Saxony Championship | Masters | Scandinavian Defense: Gubinsky-Melts Defense | |
| Jan 7, 2023 | Tarasenko | ½–½ | Tonndorf | Lower Saxony Championship | Masters | Nimzo-Indian Defense: Three Knights Variation | |
| Jan 5, 2023 | Antonov | 1–0 | Tonndorf | Lower Saxony Championship | Masters | Sicilian Defense: French Variation, Westerinen Attack | |
| Nov 13, 2022 | Edelmann | * | Tonndorf | 25th Open Bavarian Championship | ? | |
| Nov 12, 2022 | Tonndorf | * | Hittinger | 25th Open Bavarian Championship | ? | |
| Nov 11, 2022 | Soham Das | 1–0 | Tonndorf | 25th Open Bavarian Championship | Sicilian Defense: French Variation | |
| Nov 10, 2022 | Tonndorf | ½–½ | Womacka | 25th Open Bavarian Championship | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Nov 9, 2022 | Schneider | 0–1 | Tonndorf | 25th Open Bavarian Championship | ? | |
| Nov 8, 2022 | Tonndorf | 1–0 | Stuhler | 25th Open Bavarian Championship | ? | |
| Nov 7, 2022 | Kraus | ½–½ | Tonndorf | 25th Open Bavarian Championship | ? | |