| Dec 27, 2025 | Heberla | 1–0 | Knudsen | Round 1: Heberla, Bartlomiej - Knudsen, Simon | English Opening: Anglo-Indian Defense, Anti-Anti-Grünfeld | |
| Apr 19, 2025 | Knudsen | ½–½ | Shevkunov | Freestyle Chess Open A | ? | |
| Mar 29, 2025 | Knudsen | 0–1 | Strehse | NRW-Blitz-Einzelmeisterschaft 2025 | French Defense: Tarrasch Variation, Morozevich Variation | |
| Mar 29, 2025 | Knudsen | 0–1 | Zelbel | NRW-Blitz-Einzelmeisterschaft 2025 | ? | |
| Mar 29, 2025 | Knudsen | ½–½ | Freiberger | NRW-Blitz-Einzelmeisterschaft 2025 | Vienna Game: Max Lange Defense | |
| Mar 29, 2025 | Knudsen | ½–½ | Nhan | NRW-Blitz-Einzelmeisterschaft 2025 | French Defense: Tarrasch Variation, Open System, Main Line | |
| Mar 29, 2025 | Scholz | 0–1 | Knudsen | NRW-Blitz-Einzelmeisterschaft 2025 | Modern Defense | |
| Mar 29, 2025 | Blasek | 0–1 | Knudsen | NRW-Blitz-Einzelmeisterschaft 2025 | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Mar 29, 2025 | Rybarczyk | 0–1 | Knudsen | NRW-Blitz-Einzelmeisterschaft 2025 | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Mar 29, 2025 | Parashchenko | 1–0 | Knudsen | NRW-Blitz-Einzelmeisterschaft 2025 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Mar 29, 2025 | Mikeladze | 0–1 | Knudsen | NRW-Blitz-Einzelmeisterschaft 2025 | Modern Defense: Two Knights Variation | |
| Mar 2, 2025 | Isik | 1–0 | Knudsen | PICF 2025 - KAREL JANEČEK Open | Zukertort Opening: Kingside Fianchetto | |
| Mar 1, 2025 | Knudsen | ½–½ | Rubes | PICF 2025 - KAREL JANEČEK Open | French Defense: Advance Variation, Euwe Variation | |
| Jan 3, 2025 | Hovhannisyan | 1–0 | Knudsen | Round 9: Hovhannisyan, Mher - Knudsen, Simon | Sicilian Defense: Alapin Variation | |
| Jan 2, 2025 | Knudsen | 1–0 | Adharsh K | Round 8: Knudsen, Simon - Adharsh K | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jan 1, 2025 | Kalosha | ½–½ | Knudsen | Round 7: Kalosha, Zhiulien Oleksii - Knudsen, Simon | Grünfeld Defense: Russian Variation, Byrne Variation | |
| Nov 9, 2024 | Baselmans | ½–½ | Knudsen | KNSB Meesterklasse 2024-2025 | Sicilian Defense: Closed | |
| Feb 13, 2024 | Koellner | 1–0 | Simon Knudsen | Baden-Baden Faschingsopen 2024 | Queen's Pawn Game: London System | |
| Feb 12, 2024 | Nied | ½–½ | Simon Knudsen | Baden-Baden Faschingsopen 2024 | Sicilian Defense: Open | |
| Feb 12, 2024 | Simon Knudsen | 1–0 | Georg Voss | Baden-Baden Faschingsopen 2024 | Sicilian Defense: O'Kelly Variation, Réti System | |
| Feb 12, 2024 | Simon Knudsen | ½–½ | Maximilian Menzel | Baden-Baden Faschingsopen 2024 | Caro-Kann Defense: Advance Variation | |
| Feb 12, 2024 | Philipp Schlosser | 1–0 | Simon Knudsen | Baden-Baden Faschingsopen 2024 | English Opening: Anglo-Indian Defense, Anti-Anti-Grünfeld | |
| Dec 31, 2024 | Knudsen | ½–½ | Candian | Round 6: Knudsen, Simon - Candian, Lorenzo | Sicilian Defense: O'Kelly Variation, Venice System | |
| Dec 30, 2024 | Sepehrkhoui | 0–1 | Knudsen | Round 5: Sepehrkhoui, Ardeshir - Knudsen, Simon | Pirc Defense: Classical Variation, Quiet System | |
| Dec 29, 2024 | Knudsen | 0–1 | Bettalli | Round 4: Knudsen, Simon - Bettalli, Francesco | Sicilian Defense: Classical Variation, Sozin Attack | |
| Dec 29, 2024 | Dolas | 0–1 | Knudsen | Round 3: Dolas, Aarush - Knudsen, Simon | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Dec 28, 2024 | Knudsen | ½–½ | Rossi | Round 2: Knudsen, Simon - Rossi, Gabriele Valerio | Pirc Defense | |
| Dec 27, 2024 | Petroff | * | Knudsen | Round 1: Petroff, Vlad - Knudsen, Simon | ? | |
| Aug 15, 2024 | Vaganian | 1–0 | Knudsen | Round 6: Vaganian, Rafael A - Knudsen, Simon | Trompowsky Attack | |
| Aug 14, 2024 | Knudsen | ½–½ | Stalmach | Round 5: Knudsen, Simon - Stalmach, Richard | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Aug 13, 2024 | Knudsen | ½–½ | Gkoumas | Round 4: Knudsen, Simon - Gkoumas, Georgios | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| Aug 12, 2024 | Kuegel | ½–½ | Knudsen | Round 3: Kuegel, Tobias - Knudsen, Simon | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| Jun 11, 2022 | Iniyan | 1–0 | Knudsen | Prague Chess Festival - Open | Grünfeld Defense: Exchange Variation | |
| Dec 13, 2021 | Knudsen | ½–½ | Kulaots | Sunway Sitges | ? | |
| — | Knudsen | 1–0 | Breitkopf-Lazar | NRW-Blitz-Einzelmeisterschaft 2025 | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
