| Mar 8, 2026 | Windmueller | 0–1 | Berend | Rapide Festival Nancy 2026 | English Opening: Agincourt Defense | |
| Mar 8, 2026 | Travadon | 1–0 | Windmueller | Rapide Festival Nancy 2026 | Torre Attack: Fianchetto Defense, Euwe Variation | |
| Mar 7, 2026 | Adrian | 1–0 | Windmueller | Blitz Festival Nancy 2026 | English Opening: Symmetrical Variation | |
| Mar 7, 2026 | Windmueller | 0–1 | Bellahcene | Blitz Festival Nancy 2026 | Queen's Indian Defense: Kasparov-Petrosian Variation, Andersson Variation | |
| Feb 15, 2026 | Shanawaz Thabrez | 1–0 | Windmueller | 5. Int. Baden-Badener Faschingsopen | Caro-Kann Defense: Two Knights Attack | |
| Nov 23, 2025 | Podat | ½–½ | Windmueller | Heusenstamm Sparkassen Open 2025 | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| Nov 22, 2025 | Windmueller | 0–1 | Baranyai-Molnar | Heusenstamm Sparkassen Open 2025 | Blumenfeld Countergambit Accepted | |
| Jun 22, 2025 | Cornelisse | ½–½ | Windmueller | Round 7: Cornelisse, John - Windmueller, Simon | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Jun 21, 2025 | Windmueller | 1–0 | Wittko | Round 6: Windmueller, Simon - Wittko, Alexander | Réti Opening | |
| Jun 21, 2025 | Frohneberg | ½–½ | Windmueller | Round 5: Frohneberg, Paul - Windmueller, Simon | Sicilian Defense: Richter-Rauzer Variation | |
| Jun 20, 2025 | Ollenberger | 1–0 | Windmueller | Round 3: Ollenberger, Roland - Windmueller, Simon | Sicilian Defense: Modern Variations | |
| Oct 6, 2024 | Windmueller | ½–½ | Abou Wally | Deutsche Ländermeisterschaft 2024 | Catalan Opening: Open Defense, Classical Line | |
| Oct 5, 2024 | Kauth | 0–1 | Windmueller | Deutsche Ländermeisterschaft 2024 | Sicilian Defense: Closed | |
| Oct 5, 2024 | Farokhi | 1–0 | Windmueller | Deutsche Ländermeisterschaft 2024 | Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit Accepted | |
| Oct 4, 2024 | Windmueller | ½–½ | Weber | Deutsche Ländermeisterschaft 2024 | Sicilian Defense: O'Kelly Variation, Venice System | |
| Oct 4, 2024 | Windmueller | ½–½ | Karle | Deutsche Ländermeisterschaft 2024 | King's Indian Attack: Spassky Variation | |
| Oct 3, 2024 | Windmueller | ½–½ | Nechitaylo | Deutsche Ländermeisterschaft 2024 | Benoni Defense: Classical Variation, Czerniak Defense | |
| Oct 3, 2024 | Sydykov | 1–0 | Windmueller | Deutsche Ländermeisterschaft 2024 | Sicilian Defense: Moscow Variation | |
| Jun 2, 2024 | Seidler | ½–½ | Windmueller | Round 7: Seidler, Lukas - Windmueller, Simon | Caro-Kann Defense: Tartakower Variation | |
| Jun 1, 2024 | Windmueller | ½–½ | Sydykov | Round 6: Windmueller, Simon - Sydykov, Bayastan | Zukertort Opening | |
| Jun 1, 2024 | Windmueller | * | Wezel | Round 5: Windmueller, Simon - Wezel, Sebastian | ? | |
| May 31, 2024 | Kober | * | Windmueller | Round 4: Kober, Jan Eric - Windmueller, Simon | ? | |
| May 31, 2024 | Windmueller | 0–1 | Syrov | Round 3: Windmueller, Simon - Syrov, Arkadi | Queen's Pawn Game: Colle System | |
| May 30, 2024 | Mondorf | * | Windmueller | Round 2: Mondorf, Karl-Josef - Windmueller, Simon | ? | |
| May 25, 2024 | Karle | 1–0 | Windmueller | DEM U16 2024 | Caro-Kann Defense: Endgame Offer | |
| May 24, 2024 | Oldenburg | ½–½ | Windmueller | DEM U16 2024 | Queen's Gambit Declined: Janowski Variation | |
| May 23, 2024 | Windmueller | ½–½ | Goepfert | DEM U16 2024 | King's Indian Attack | |
| May 22, 2024 | Windmueller | ½–½ | Helms | DEM U16 2024 | English Opening: Neo-Catalan | |
| May 22, 2024 | Krueger | 1–0 | Windmueller | DEM U16 2024 | Queen's Pawn Game: Zukertort Variation | |
| May 21, 2024 | Deschler | 1–0 | Windmueller | DEM U16 2024 | Sicilian Defense: Najdorf Variation, Adams Attack | |
| May 20, 2024 | Windmueller | ½–½ | Haubold | DEM U16 2024 | King's Indian Defense: Fianchetto Variation, Panno Variation | |
| May 19, 2024 | Windmueller | 0–1 | Klaska | DEM U16 2024 | English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto | |
| May 19, 2024 | Asmussen | 0–1 | Windmueller | DEM U16 2024 | Caro-Kann Defense: Tartakower Variation | |
| Aug 3, 2024 | Cofmann | 1–0 | Windmueller | Round 5: Cofmann, Veaceslav - Windmueller, Simon | Indian Defense: West Indian Defense | |
| Aug 2, 2024 | Windmueller | ½–½ | Foerch | Round 4: Windmueller, Simon - Foerch, Benedikt | Neo-Grünfeld Defense: Classical Variation, Original Defense | |
| Aug 2, 2024 | Hinrichs | 0–1 | Windmueller | Round 3: Hinrichs, Paul - Windmueller, Simon | Grünfeld Defense: Three Knights Variation, Vienna Variation | |
| Aug 1, 2024 | Namyslo | ½–½ | Windmueller | Round 1: Namyslo, Holger - Windmueller, Simon | Sicilian Defense: Najdorf Variation, Main Line | |
| Oct 5, 2023 | Sidletskyi | 1–0 | Windmüller | Deutsche Ländermeisterschaft 2023 | Caro-Kann Defense: Maróczy Variation | |
| Oct 4, 2023 | Windmüller | 0–1 | Müller | Deutsche Ländermeisterschaft 2023 | Slav Defense: Quiet Variation, Schallopp Defense | |
| Oct 3, 2023 | Avdic | 1–0 | Windmüller | Deutsche Ländermeisterschaft 2023 | Nimzo-Indian Defense: Kmoch Variation | |
| Oct 3, 2023 | Herrmann | ½–½ | Windmüller | Deutsche Ländermeisterschaft 2023 | Caro-Kann Defense: Tartakower Variation | |
| Oct 2, 2023 | Windmüller | 0–1 | Nemitz | Deutsche Ländermeisterschaft 2023 | King's Indian Attack | |
| Oct 1, 2023 | Windmüller | ½–½ | Bosselmann | Deutsche Ländermeisterschaft 2023 | Torre Attack: Fianchetto Defense | |
| Oct 1, 2023 | Lohr | 1–0 | Windmüller | Deutsche Ländermeisterschaft 2023 | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
