| Jun 7, 2026 | Laubsch | ½–½ | Weigand | Round 5: Laubsch, Bernd - Weigand, Anton | Sicilian Defense: Old Sicilian | |
| Jun 7, 2026 | Hoellman | 1–0 | Weigand | Round 4: Hoellman, Ludger - Weigand, Anton | Nimzo-Indian Defense: Reshevsky Variation | |
| Jun 6, 2026 | Weigand | ½–½ | Bredemeier | Round 3: Weigand, Anton - Bredemeier, Dirk | French Defense: Winawer Variation, Portisch-Hook Variation | |
| Jun 6, 2026 | Mueller | 1–0 | Weigand | Round 2: Mueller, Alfred Helmut - Weigand, Anton | Queen's Gambit Declined: Traditional Variation | |
| Jun 5, 2026 | Weigand | 1–0 | Dianov | Round 1: Weigand, Anton - Dianov, Ilja | Caro-Kann Defense: Two Knights Attack, Mindeno Variation | |
| May 29, 2026 | Weigand | 1–0 | Hess | Round 9: Weigand, Anton - Hess, Max | Caro-Kann Defense: Two Knights Attack, Mindeno Variation | |
| May 28, 2026 | Weigand | 1–0 | Stelmaszyk | Round 8: Weigand, Anton - Stelmaszyk, Nico | Italian Game: Classical Variation, Giuoco Pianissimo | |
| May 27, 2026 | Balaji | 0–1 | Weigand | Round 7: Balaji, Aaravamudhan - Weigand, Anton | Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange Variation | |
| May 27, 2026 | Weigand | 1–0 | Vaidyanathan | Round 6: Weigand, Anton - Vaidyanathan, Adithya | Sicilian Defense: Richter-Rauzer Variation | |
| May 25, 2026 | Noe | 1–0 | Weigand | Round 3: Noe, Christopher - Weigand, Anton | English Opening: King's English Variation | |
| May 23, 2026 | Ben Ari | 1–0 | Weigand | Round 1: Ben Ari, Yannay - Weigand, Anton | English Opening: King's English Variation | |
| May 15, 2026 | Lauber | 1–0 | Weigand | Round 4: Lauber, Arnd - Weigand, Anton | Nimzo-Indian Defense: Normal Variation, Botvinnik System | |
| Apr 5, 2026 | Weigand | 0–1 | Lavrinenkov | Round 7: Weigand, Anton - Lavrinenkov, Vadim | ? | |
| Apr 3, 2026 | Weigand | 0–1 | Nurman | Round 3: Weigand, Anton - Nurman, Alua | ? | |
| Apr 3, 2026 | Weigand | 0–1 | Sarana | Round 1: Weigand, Anton - Sarana, Alexey | ? | |
| Mar 31, 2026 | Ten Dam | 1–0 | Weigand | Runde 9: Ten Dam, Bram - Weigand, Anton | Sicilian Defense: Closed | |
| Mar 27, 2026 | Koellner | 1–0 | Weigand | Runde 1: Koellner, Ruben Gideon - Weigand, Anton | Indian Defense: Knights Variation | |
| Jan 5, 2026 | Weigand | ½–½ | Bargsten | Runde 7: Weigand, Anton - Bargsten, Justus | Sicilian Defense: Kalashnikov Variation | |
| Jan 4, 2026 | Weigand | 0–1 | Peters | Runde 6: Weigand, Anton - Peters, Tom | Sicilian Defense: Alapin Variation | |
| Jan 4, 2026 | Tonndorf | ½–½ | Weigand | Runde 5: Tonndorf, Matthias - Weigand, Anton | King's Indian Attack | |
| Jan 3, 2026 | Weigand | 0–1 | Bundan | Runde 4: Weigand, Anton - Bundan, Edward | Sicilian Defense: Lasker-Pelikan Variation | |
| Jan 3, 2026 | Plischki | ½–½ | Weigand | Runde 3: Plischki, Sebastian - Weigand, Anton | Nimzo-Indian Defense: Normal Variation | |
| Jan 2, 2026 | Weigand | ½–½ | Voege | Runde 2: Weigand, Anton - Voege, Tobias | French Defense: Classical Variation, Burn Variation, Morozevich Line | |
| Jan 2, 2026 | Kieselbach | 0–1 | Weigand | Runde 1: Kieselbach, Marvin - Weigand, Anton | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Nov 1, 2025 | Weigand | ½–½ | Avdic | Runde 7: Weigand, Anton - Avdic, Faris | Sicilian Defense: Dragon Variation | |
| Nov 1, 2025 | Kummerow | 0–1 | Weigand | Runde 6: Kummerow, Heiko - Weigand, Anton | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| Nov 1, 2025 | Weigand | ½–½ | Meiwes | Runde 5: Weigand, Anton - Meiwes, Thore | Caro-Kann Defense: Endgame Variation | |
| Oct 31, 2025 | Holtel | 1–0 | Weigand | Runde 4: Holtel, Jasper - Weigand, Anton | English Opening: King's English Variation | |
| Oct 31, 2025 | Weigand | 1–0 | Nedic | Runde 3: Weigand, Anton - Nedic, Dusan | Sicilian Defense: Richter-Rauzer Variation | |
| Oct 30, 2025 | Neumann | 0–1 | Weigand | Runde 2: Neumann, Michael - Weigand, Anton | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Oct 30, 2025 | Weigand | 1–0 | Moeller | Runde 1: Weigand, Anton - Moeller, Tom | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Oct 19, 2025 | Lichmann | 1–0 | Weigand | Runde 2: SK Lehrte - Bremen | Nimzo-Indian Defense: Normal Variation | |
| Oct 18, 2025 | Weigand | 1–0 | Lueders Vega | Round 9: Weigand, Anton - Lueders Vega, Iago Ernst | ? | |
| Oct 18, 2025 | Hagemann | 1–0 | Weigand | Round 8: Hagemann, Sven - Weigand, Anton | ? | |
| Oct 18, 2025 | Weigand | 0–1 | Engel | Round 7: Weigand, Anton - Engel, Bruno | ? | |
| Oct 18, 2025 | Kovalov | 0–1 | Weigand | Round 6: Kovalov, Yaroslav - Weigand, Anton | ? | |
| Oct 18, 2025 | Weigand | 1–0 | Baechler | Round 5: Weigand, Anton - Baechler, Andreas | ? | |
| Oct 18, 2025 | Stelmaszyk | 1–0 | Weigand | Round 4: Stelmaszyk, Nico - Weigand, Anton | ? | |
| Oct 18, 2025 | Weigand | 1–0 | Polenz | Round 2: Weigand, Anton - Polenz, Fredrik | ? | |
| Oct 18, 2025 | Felis | 0–1 | Weigand | Round 1: Felis, Timo - Weigand, Anton | ? | |
| Oct 13, 2025 | Weigand | 0–1 | Schneider | Round 3: Weigand, Anton - Schneider, Ilja | ? | |
| May 31, 2025 | Weigand | ½–½ | Stelmaszyk | Round 6: Weigand, Anton - Stelmaszyk, Nico | Sicilian Defense: Old Sicilian | |
| May 30, 2025 | Weigand | 0–1 | Bilovil | Round 3: Weigand, Anton - Bilovil, Bogdan | Sicilian Defense: Alapin Variation, Barmen Defense | |
| May 25, 2025 | Weigand | 1–0 | Laubsch | Round 5: Weigand, Anton - Laubsch, Bernd | Petrov's Defense: Modern Attack | |
| May 25, 2025 | Weigand | 1–0 | Koch | Round 4: Weigand, Anton - Koch, Yannick | Caro-Kann Defense: Two Knights Attack | |
| May 24, 2025 | Dianov | 0–1 | Weigand | Round 3: Dianov, Ilja - Weigand, Anton | Sicilian Defense: Lasker-Pelikan Variation | |
| May 24, 2025 | Weigand | ½–½ | Stotyn | Round 2: Weigand, Anton - Stotyn, Fabian | French Defense: Paulsen Variation | |
| May 23, 2025 | Schilling | ½–½ | Weigand | Round 1: Schilling, Rumo - Weigand, Anton | Sicilian Defense: Closed, Traditional | |
| Apr 18, 2025 | Karsay | ½–½ | Weigand | Round 2: Karsay, Pascal - Weigand, Anton | Queen's Gambit Accepted: Gunsberg Defense | |
| Jan 5, 2025 | Weigand | ½–½ | Laubsch | Round 7: Weigand, Anton - Laubsch, Bernd | Sicilian Defense: Alapin Variation | |
| Jan 4, 2025 | Weigand | 1–0 | Hilker | Round 5: Weigand, Anton - Hilker, Bjoern | Petrov's Defense: Modern Attack, Center Attack | |
| Jan 4, 2025 | Kieselbach | 0–1 | Weigand | Round 6: Kieselbach, Marvin - Weigand, Anton | Sicilian Defense: Old Sicilian | |
| Jan 3, 2025 | Weigand | 1–0 | Ploog | Round 3: Weigand, Anton - Ploog, Martin, Dr. | French Defense: Winawer Variation, Alekhine Gambit, Kan Variation | |
| Jan 3, 2025 | Stotyn | ½–½ | Weigand | Round 4: Stotyn, Fabian - Weigand, Anton | Sicilian Defense | |
| Jan 2, 2025 | Weigand | 1–0 | Stein | Round 1: Weigand, Anton - Stein, Luis | Caro-Kann Defense: Two Knights Attack | |
| Jan 2, 2025 | Gehrke | 0–1 | Weigand | Round 2: Gehrke, Mathias - Weigand, Anton | Sicilian Defense: Closed, Traditional | |
| Dec 31, 2024 | Weigand | 0–1 | Bagrationi | Round 9: Weigand, Anton - Bagrationi, Alexander | Sicilian Defense: Alapin Variation | |
| Dec 30, 2024 | Weigand | 1–0 | Tarasenko | Round 8: Weigand, Anton - Tarasenko, Nazar | Sicilian Defense: Alapin Variation, Barmen Defense, Modern Line | |
| Dec 30, 2024 | von Estorff | 0–1 | Weigand | Round 7: von Estorff, Jacob - Weigand, Anton | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| Dec 29, 2024 | Weigand | 1–0 | Henschen | Round 6: Weigand, Anton - Henschen, Patrick | Scandinavian Defense: Gubinsky-Melts Defense | |
| Dec 28, 2024 | Weigand | 0–1 | Bogomolow | Round 4: Weigand, Anton - Bogomolow, Sergej | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Dec 27, 2024 | Stelmaszyk | ½–½ | Weigand | Round 3: Stelmaszyk, Nico - Weigand, Anton | Queen's Gambit Declined | |
| May 25, 2024 | Meiwes | 0–1 | Weigand | ODJM A 2024 | Queen's Gambit Accepted: Normal Variation | |
| May 24, 2024 | Weigand | 0–1 | Wuebker | ODJM A 2024 | Sicilian Defense: Alapin Variation | |
| May 23, 2024 | Weigand | 1–0 | Vollbehr | ODJM A 2024 | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| May 22, 2024 | Weigand | 1–0 | Grunert | ODJM A 2024 | French Defense: Winawer Variation, Alekhine-Maróczy Gambit | |
| May 22, 2024 | Brockhoff | 0–1 | Weigand | ODJM A 2024 | Sicilian Defense: Four Knights Variation, Exchange Variation | |
| May 21, 2024 | Weigand | 1–0 | Hoffmann | ODJM A 2024 | Sicilian Defense: Alapin Variation | |
| May 20, 2024 | Seitz | 0–1 | Weigand | ODJM A 2024 | Sicilian Defense: McDonnell Attack | |
| May 19, 2024 | Weigand | ½–½ | Chinguun Sundui | ODJM A 2024 | Sicilian Defense: Alapin Variation | |
| May 19, 2024 | Groeschel | 1–0 | Weigand | ODJM A 2024 | Sicilian Defense: Four Knights Variation | |
| Mar 20, 2024 | Weigand | 0–1 | Sidhant | Reykjavik Open 2024 | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Mar 18, 2024 | Weigand | 0–1 | Moksh Amit Doshi | Reykjavik Open 2024 | Sicilian Defense: Delayed Alapin Variation | |
| Mar 15, 2024 | Bulmaga | ½–½ | Weigand | Reykjavik Open 2024 | Sicilian Defense: French Variation, Normal | |
| Dec 29, 2024 | Nyenhuis | ½–½ | Weigand | Round 5: Nyenhuis, Yannek - Weigand, Anton | Queen's Indian Defense: Classical Variation, Traditional Variation, Main Line | |
| Dec 27, 2024 | Weigand | 1–0 | Burnus | Round 2: Weigand, Anton - Burnus, Finn Crispin | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Dec 27, 2024 | Westerhoff | 0–1 | Weigand | Round 1: Westerhoff, Ralf - Weigand, Anton | Sicilian Defense: Lasker-Pelikan Variation, Exchange Variation | |
| Dec 7, 2024 | Weigand | 1–0 | Luca Oberstrass | Round 1: Weigand, Anton - Luca Oberstrass | Sicilian Defense: Alapin Variation | |
| Dec 7, 2024 | Weigand | 0–1 | Spitzl | Round 2: Weigand, Anton - Spitzl, Vinzent | Sicilian Defense: Alapin Variation, Barmen Defense, Modern Line | |
| Dec 7, 2024 | Weigand | 1–0 | Hoffmeyer | Round 5: Weigand, Anton - Hoffmeyer, Florian | Caro-Kann Defense: Two Knights Attack | |
| Dec 7, 2024 | Weigand | 1–0 | Jan Laakmann | Round 7: Weigand, Anton - Jan Laakmann | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Dec 7, 2024 | Jan Nordmeier | 0–1 | Weigand | Round 3: Jan Nordmeier - Weigand, Anton | Sicilian Defense: Grand Prix Attack | |
| Dec 7, 2024 | Lippert | 1–0 | Weigand | Round 4: Lippert, Daniel - Weigand, Anton | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| Dec 7, 2024 | Hourigan | 1–0 | Weigand | Round 6: Hourigan, Gerrit - Weigand, Anton | Queen's Indian Defense: Classical Variation | |
| Aug 11, 2024 | Weigand | ½–½ | Peyrer | Round 2: Weigand, Anton - Peyrer, Konstantin | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Jan 7, 2023 | Weigand | 1–0 | Muecke | Lower Saxony Championship | A | Pirc Defense: 150 Attack | |
| Jan 7, 2023 | Steffens | 1–0 | Weigand | Lower Saxony Championship | A | Van Geet Opening: Battambang Variation | |
| Jan 5, 2023 | Weigand | ½–½ | Heinemann | Lower Saxony Championship | A | Sicilian Defense: Alapin Variation | |
| Jun 11, 2022 | Weigand | ½–½ | Savchenko | ODJM A 2022 | Sicilian Defense: Delayed Alapin Variation | |
| Jun 10, 2022 | Schmitt | 1–0 | Weigand | ODJM A 2022 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jun 9, 2022 | Weigand | ½–½ | Irkilmez | ODJM A 2022 | French Defense: Schlechter Variation | |
| Jun 8, 2022 | Weigand | 1–0 | Bartelt | ODJM A 2022 | French Defense: Schlechter Variation | |
| Jun 8, 2022 | Lohr | ½–½ | Weigand | ODJM A 2022 | Sicilian Defense: Kramnik Variation | |
| Jun 7, 2022 | Weigand | ½–½ | Frohnhäuser | ODJM A 2022 | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jun 6, 2022 | Schimnatkowski | * | Weigand | ODJM A 2022 | Sicilian Defense: Closed, Traditional | |
| Jun 5, 2022 | Weigand | * | Gerlach | ODJM A 2022 | English Opening: King's English Variation | |
| Jun 5, 2022 | Weigand | 1–0 | Hofmann | ODJM A 2022 | Caro-Kann Defense: Endgame Offer | |