| Jun 21, 2026 | Terlouw | 1–0 | Thijssen | HSG Open 2026 A | Semi-Slav Defense | |
| Jun 20, 2026 | Thijssen | ½–½ | Bagrationi | HSG Open 2026 A | Sicilian Defense: Najdorf Variation | |
| Jun 19, 2026 | Thijssen | ½–½ | Lombaers | HSG Open 2026 A | Sicilian Defense: Classical Variation | |
| Jun 19, 2026 | Smeets | 0–1 | Thijssen | HSG Open 2026 A | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| May 25, 2026 | Thijssen | * | Dumont | Round 7: Thijssen, Freek - Dumont, Ties | ? | |
| May 25, 2026 | Kagan | * | Thijssen | Round 6: Kagan, Dennis - Thijssen, Freek | ? | |
| May 24, 2026 | Thijssen | * | Van De Perre | Round 5: Thijssen, Freek - Van De Perre, Tom | ? | |
| May 24, 2026 | Bodicky | * | Thijssen | Round 4: Bodicky, Michal - Thijssen, Freek | ? | |
| May 23, 2026 | Thijssen | * | Ritzerveld | Round 3: Thijssen, Freek - Ritzerveld, Noah | ? | |
| May 23, 2026 | Gerrits | * | Thijssen | Round 2: Gerrits, Augustin - Thijssen, Freek | ? | |
| May 22, 2026 | Thijssen | 0–1 | Lahaye | Round 1: Thijssen, Freek - Lahaye, Rick | Sicilian Defense: Kupreichik Variation | |
| May 17, 2026 | Van Meegen | ½–½ | Thijssen | Round 6: Van Meegen, Ruud - Thijssen, Freek | King's Indian Attack: Sicilian Variation | |
| May 17, 2026 | Thijssen | 1–0 | Ondersteijn | Round 5: Thijssen, Freek - Ondersteijn, Niels | Philidor Defense: Exchange Variation | |
| May 10, 2026 | Thijssen | ½–½ | De Vries | Ronde 6: Thijssen, Freek - De Vries, Leon | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| May 10, 2026 | Leenen | ½–½ | Thijssen | Ronde 5: Leenen, Boyd - Thijssen, Freek | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 9, 2026 | Thijssen | ½–½ | Aishwin Daniel | Ronde 4: Thijssen, Freek - Aishwin Daniel | French Defense: Tarrasch Variation, Open System, Main Line | |
| May 9, 2026 | Ethan Chua | ½–½ | Freek Thijssen | Ronde 3: Ethan Chua - Freek Thijssen | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Novosibirsk Variation | |
| May 9, 2026 | Freek Thijssen | 1–0 | Reyansh Kakrana | Ronde 2: Freek Thijssen - Reyansh Kakrana | Caro-Kann Defense: Maróczy Variation | |
| May 8, 2026 | Jasper Kools | ½–½ | Freek Thijssen | Round 1: Jasper Kools - Freek Thijssen | Queen's Pawn Game: Accelerated London System | |
| May 2, 2026 | Ghosn | 0–1 | Thijssen | Round 9: Ghosn, Eiz Eddin - Thijssen, Freek | Semi-Slav Defense | |
| May 2, 2026 | Thijssen | 0–1 | Chua | Round 8: Thijssen, Freek - Chua, Ethan | Sicilian Defense: Kalashnikov Variation | |
| May 2, 2026 | Grutter | 1–0 | Thijssen | Round 7: Grutter, Tim - Thijssen, Freek | Zukertort Opening | |
| May 2, 2026 | Thijssen | 1–0 | Van Ravensteijn | Round 6: Thijssen, Freek - Van Ravensteijn, Antal | Scandinavian Defense: Valencian Variation, Main Line | |
| May 2, 2026 | Grooten | 0–1 | Thijssen | Round 5: Grooten, Herman - Thijssen, Freek | Semi-Slav Defense | |
| May 2, 2026 | Thijssen | 1–0 | Van de Louw | Round 4: Thijssen, Freek - Van de Louw, Bas | Caro-Kann Defense: Maróczy Variation | |
| May 2, 2026 | Govoreanu | 1–0 | Thijssen | Round 3: Govoreanu, Matei - Thijssen, Freek | Sicilian Defense: Lasker-Pelikan Variation | |
| Apr 30, 2026 | Thijssen | 1–0 | Nadrshin | Round 9: Thijssen, Freek - Nadrshin, Oleg | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Apr 29, 2026 | Zhang | ½–½ | Thijssen | Round 8: Zhang, Xiheng - Thijssen, Freek | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Novosibirsk Variation | |
| Apr 29, 2026 | Thijssen | 1–0 | Huang | Round 7: Thijssen, Freek - Huang, Vincent | Sicilian Defense: Dragon Variation | |
| Apr 29, 2026 | Sosef | ½–½ | Thijssen | Round 6: Sosef, Noah - Thijssen, Freek | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Apr 27, 2026 | Thijssen | 0–1 | Blok | Round 5: Thijssen, Freek - Blok, Lukas | Pirc Defense: 150 Attack | |
| Apr 27, 2026 | Koppenens | ½–½ | Thijssen | Round 4: Koppenens, Oscar - Thijssen, Freek | Sicilian Defense: Accelerated Dragon, Modern Variation | |
| Apr 27, 2026 | Thijssen | 1–0 | Leenen | Round 3: Thijssen, Freek - Leenen, Boyd | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Apr 25, 2026 | Omnes | ½–½ | Thijssen | Round 2: Omnes, Tiago - Thijssen, Freek | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Apr 25, 2026 | Thijssen | 1–0 | Ozbek | Round 1: Thijssen, Freek - Ozbek, Ahmet Naim | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Dec 24, 2025 | Van t Hoff | ½–½ | Thijssen | Round 4: Van t Hoff, Tom - Thijssen, Freek | English Opening: Agincourt Defense | |
| Dec 22, 2025 | Nauanova Zhaniya | 1–0 | Thijssen | Round 2: Nauanova Zhaniya - Thijssen, Freek | English Opening: King's English Variation, Reversed Closed Sicilian | |
| Dec 21, 2025 | Thijssen | 1–0 | Almefalani | Round 1: Thijssen, Freek - Almefalani, Abdulhay | Caro-Kann Defense: Maróczy Variation | |
| Oct 30, 2025 | Thijssen | 0–1 | Jalving | Round 2: Thijssen, Freek - Jalving, August | Sicilian Defense: Kan Variation, Wing Attack | |
| May 30, 2025 | Beerdsen | 1–0 | Thijssen | Round 1: Beerdsen, Thomas - Thijssen, Freek | Four Knights Game: Gunsberg Variation | |
| May 18, 2025 | Thijssen | 0–1 | Mostertman | Round 6: Thijssen, Freek - Mostertman, Milan | French Defense: Exchange Variation | |
| May 18, 2025 | Panjer | 0–1 | Thijssen | Round 5: Panjer, Sidney - Thijssen, Freek | Catalan Opening: Closed, Botvinnik Variation | |
| May 17, 2025 | Thijssen | 1–0 | Hubers | Round 4: Thijssen, Freek - Hubers, Daan | Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation | |
| May 17, 2025 | Bruggeman | 0–1 | Thijssen | Round 3: Bruggeman, David - Thijssen, Freek | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| May 17, 2025 | Thijssen | ½–½ | Feijen | Round 2: Thijssen, Freek - Feijen, Niels | French Defense: Advance Variation, Euwe Variation | |
| May 16, 2025 | Bok | 1–0 | Thijssen | Round 1: Bok, Benjamin - Thijssen, Freek | Catalan Opening: Closed, Main Line | |
| May 2, 2025 | Thijssen | 1–0 | Leenen | Round 10: Thijssen, Freek - Leenen, Boyd | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| May 2, 2025 | Thijssen | ½–½ | Leenen | Round 12: Thijssen, Freek - Leenen, Boyd | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| May 2, 2025 | Thijssen | * | Leenen | Round 15: Thijssen, Freek - Leenen, Boyd | ? | |
| May 2, 2025 | Guillaumond | 0–1 | Thijssen | Round 9: Guillaumond, Matthieu - Thijssen, Freek | Scotch Game | |
| May 2, 2025 | Leenen | 1–0 | Thijssen | Round 11: Leenen, Boyd - Thijssen, Freek | Zukertort Opening: Nimzo-Larsen Variation | |
| May 2, 2025 | Leenen | ½–½ | Thijssen | Round 13: Leenen, Boyd - Thijssen, Freek | Zukertort Opening | |
| May 2, 2025 | Leenen | 0–1 | Thijssen | Round 14: Leenen, Boyd - Thijssen, Freek | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| May 1, 2025 | Thijssen | 0–1 | Dinanath | Round 8: Thijssen, Freek - Dinanath, Hrdya | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Apr 30, 2025 | Thijssen | 1–0 | Zecha | Round 6: Thijssen, Freek - Zecha, Oscar | Italian Game: Classical Variation, Greco Gambit, Traditional Line | |
| Apr 30, 2025 | Teianu | ½–½ | Thijssen | Round 7: Teianu, Sabin - Thijssen, Freek | Semi-Slav Defense: Normal Variation | |
| Apr 29, 2025 | Thijssen | 1–0 | Georgopoulos-Karbouniaris | Round 5: Thijssen, Freek - Georgopoulos-Karbouniaris, Mylo | Caro-Kann Defense: Maróczy Variation | |
| Apr 28, 2025 | Thijssen | ½–½ | Aravindhan | Round 3: Thijssen, Freek - Aravindhan, Achyuth | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Apr 28, 2025 | Leenen | ½–½ | Thijssen | Round 4: Leenen, Boyd - Thijssen, Freek | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Apr 27, 2025 | Lalkota | 0–1 | Thijssen | Round 2: Lalkota, Sai Pranav Tejas - Thijssen, Freek | English Opening: King's English Variation | |
| Apr 26, 2025 | Thijssen | 1–0 | Roersma | Round 1: Thijssen, Freek - Roersma, Dylan | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jun 16, 2024 | Van Houtert | ½–½ | Thijssen | Round 2: Van Houtert, Lennart - Thijssen, Freek | Italian Game: Giuoco Pianissimo, Normal | |
| Jun 16, 2024 | Thijssen | 1–0 | Pop | Round 1: Thijssen, Freek - Pop, Robert | French Defense: Advance Variation, Paulsen Attack | |
| Jun 15, 2024 | Thijssen | 1–0 | Sprong | Round 9: Thijssen, Freek - Sprong, Pia | Pirc Defense: Austrian Attack, Kurajica Variation | |
| Jun 15, 2024 | Duson | 1–0 | Thijssen | Round 8: Duson, Robin - Thijssen, Freek | Slav Defense: Quiet Variation | |
| Jun 15, 2024 | Thijssen | 1–0 | Deij | Round 7: Thijssen, Freek - Deij, Casper | Italian Game: Classical Variation, Greco Gambit, Traditional Line | |
| Jun 15, 2024 | Baselmans | 1–0 | Thijssen | Round 6: Baselmans, Sam - Thijssen, Freek | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jun 15, 2024 | Cornelisse | 1–0 | Thijssen | Round 5: Cornelisse, Sam - Thijssen, Freek | English Opening: Caro-Kann Defensive System | |
| Jun 15, 2024 | Thijssen | 1–0 | Vogel | Round 4: Thijssen, Freek - Vogel, Jaap | French Defense: Exchange Variation | |
| Jun 15, 2024 | Labruyere | 1–0 | Thijssen | Round 2: Labruyere, Roger - Thijssen, Freek | Four Knights Game: Spanish Variation | |
| Jun 2, 2024 | Thijssen | 0–1 | Maters | WLC Tournament 2024 A | Sicilian Defense: Najdorf Variation | |
| Jun 2, 2024 | Bollen | ½–½ | Thijssen | WLC Tournament 2024 A | Bishop's Opening: Vienna Hybrid | |
| Jun 1, 2024 | Thijssen | ½–½ | Feng | WLC Tournament 2024 A | ? | |
| Jun 1, 2024 | Thijssen | 1–0 | Kshirsagar | WLC Tournament 2024 A | Caro-Kann Defense: Exchange Variation | |
| Jun 1, 2024 | Koppenens | 0–1 | Thijssen | WLC Tournament 2024 A | ? | |
| May 31, 2024 | Grooten | 1–0 | Thijssen | WLC Tournament 2024 A | ? | |
| Oct 27, 2023 | Krishnasing | 1–0 | Thijssen | Amsterdam Chess Open 2023 - A & B | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| May 4, 2023 | Thijssen | ½–½ | Lopes | NJSK 2023 Jeugd C | Sicilian Defense: Classical Variation | |
| May 4, 2023 | Ambrona Navarro | ½–½ | Thijssen | NJSK 2023 Jeugd C | Slav Defense: Exchange Variation | |
| May 3, 2023 | Wortman | 0–1 | Thijssen | NJSK 2023 Jeugd C | Italian Game: Classical Variation, Greco Gambit | |
| May 2, 2023 | Thijssen | 0–1 | Ten Kate | NJSK 2023 Jeugd C | French Defense: Exchange Variation | |
| May 2, 2023 | Thijssen | ½–½ | Roorda | NJSK 2023 Jeugd C | French Defense: Exchange Variation | |
| May 1, 2023 | Van Batenburg | ½–½ | Thijssen | NJSK 2023 Jeugd C | Scotch Game: Potter Variation | |
| Apr 30, 2023 | Thijssen | ½–½ | Kazarjan | NJSK 2023 Jeugd C | Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation | |
| — | Thijssen | 1–0 | Hesse | Round 3: Thijssen, Freek - Hesse, Lucas | Scandinavian Defense: Main Line | |
| — | Thijssen | ½–½ | Elferink | Round 5: Thijssen, Freek - Elferink, Leon | Italian Game: Classical Variation, Giuoco Pianissimo | |
| — | Thijssen | ½–½ | Elferink | Round 7: Thijssen, Freek - Elferink, Duncan | Owen Defense | |
| — | Thijssen | ½–½ | Seth | Round 9: Thijssen, Freek - Seth, Aakrit | Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation | |
| — | Van den Berg | ½–½ | Thijssen | Round 2: Van den Berg, Leon - Thijssen, Freek | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| — | Koppenens | ½–½ | Thijssen | Round 4: Koppenens, Oscar - Thijssen, Freek | Italian Game: Classical Variation, Center Attack | |
| — | Van Harten | 1–0 | Thijssen | Round 6: Van Harten, Wout - Thijssen, Freek | Scotch Game | |
| — | Van Haaften | 0–1 | Thijssen | Round 8: Van Haaften, Jelle - Thijssen, Freek | Ruy Lopez: Closed, Keres Defense | |