| Apr 3, 2026 | Kalogridis | 1–0 | Jansen | Grenke Chess Festival 2026 Open | King's Indian Defense: Normal Variation, Rare Defenses | |
| May 17, 2025 | Hubers | ½–½ | Jansen | Round 3: Hubers, Daan - Jansen, Bob | Dutch Defense: Classical Variation | |
| May 17, 2025 | Jansen | 1–0 | Cornelissen | Round 2: Jansen, Bob - Cornelissen, Jort | Sicilian Defense: Alapin Variation, Stoltz Attack, Ivanchuk Line | |
| May 16, 2025 | Ganeshram | 1–0 | Jansen | Round 1: Ganeshram, Nirupa - Jansen, Bob | French Defense: Winawer Variation, Advance Variation | |
| Apr 19, 2025 | Jansen | 0–1 | Barria | Round 4: Jansen, Bob - Barria, Jose | Sicilian Defense: Delayed Alapin Variation | |
| Apr 18, 2025 | Faerber | ½–½ | Jansen | Round 3: Faerber, David - Jansen, Bob | Pirc Defense | |
| Apr 5, 2025 | Zwirs | 1–0 | Jansen | Round 8: Zwirs, Nico - Jansen, Bob | King's Pawn Game: Tayler Opening, Inverted Hanham | |
| Feb 8, 2025 | Jansen | 0–1 | Lenaerts | Round 6: Jansen, Bob - Lenaerts, Lennert | Sicilian Defense: Alapin Variation | |
| Nov 23, 2024 | Jansen | 0–1 | Pijpers | KNSB Meesterklasse 2024-2025 | Trompowsky Attack | |
| Nov 9, 2024 | Abdulla | 1–0 | Jansen | KNSB Meesterklasse 2024-2025 | French Defense: King's Indian Attack | |
| Oct 25, 2024 | Tscharnuter | 1–0 | Jansen | 39th European Chess Club Cup | French Defense: Advance Variation, Euwe Variation | |
| Oct 23, 2024 | Varnam | ½–½ | Jansen | 39th European Chess Club Cup | Pirc Defense: Classical Variation, Quiet System, Chigorin Line | |
| Oct 22, 2024 | Jansen | 1–0 | Luque Saiz | 39th European Chess Club Cup | Pirc Defense | |
| Oct 21, 2024 | Jansen | 1–0 | Junge | 39th European Chess Club Cup | Queen's Gambit Declined | |
| Oct 12, 2024 | Hovhannisyan | 1–0 | Jansen | KNSB competitie | Dutch Defense: Classical Variation | |
| Sep 21, 2024 | Ikonnikov | 1–0 | Jansen | KNSB Meesterklasse 2024-2025 | Dutch Defense: Classical Variation | |
| Aug 6, 2024 | Muthaiah AL | 1–0 | Jansen | RTU Open - A | Horwitz Defense | |
| Jun 2, 2024 | Jansen | 1–0 | Bakija | WLC Tournament 2024 A | Pirc Defense | |
| Jun 2, 2024 | Van Doren | 0–1 | Jansen | WLC Tournament 2024 A | French Defense: Advance Variation, Paulsen Attack | |
| Jun 1, 2024 | Jansen | ½–½ | Kools | WLC Tournament 2024 A | Queen's Pawn Game: Accelerated London System | |
| Jun 1, 2024 | Jansen | ½–½ | Bye | WLC Tournament 2024 A | ? | |
| Jun 1, 2024 | Simons | 0–1 | Jansen | WLC Tournament 2024 A | French Defense: Tarrasch Variation, Morozevich Variation | |
| May 31, 2024 | Van Zon | 0–1 | Jansen | WLC Tournament 2024 A | Zukertort Opening: Queen's Gambit Invitation | |
| Mar 28, 2024 | Baskin | 1–0 | Jansen | Round 2: Baskin, Robert - Jansen, Bob | Pirc Defense: Austrian Attack, Weiss Variation | |
| Oct 20, 2024 | Jansen | 0–1 | Bartel | Round 1: Jansen, Bob - Bartel, Mateusz | Trompowsky Attack | |
| May 7, 2023 | Jansen | 1–0 | Krenning | WLC Toernooi 2023 A | Queen's Pawn Game: Accelerated London System | |
| May 7, 2023 | Wiley | ½–½ | Jansen | WLC Toernooi 2023 A | Dutch Defense: Classical Variation | |
| May 6, 2023 | Jansen | 0–1 | Beerdsen | WLC Toernooi 2023 A | Queen's Pawn Game: London System | |
| May 6, 2023 | Wichtrup | 0–1 | Jansen | WLC Toernooi 2023 A | English Opening: Agincourt Defense | |
| May 6, 2023 | Verboven | ½–½ | Jansen | WLC Toernooi 2023 A | Dutch Defense: Classical Variation | |
| May 5, 2023 | Jansen | 1–0 | Grooten | WLC Toernooi 2023 A | Trompowsky Attack | |
| Jan 13, 2023 | Jansen | 1–0 | Chubakov | Prague Open | Czech Tour | Caro-Kann Defense: Maróczy Variation | |
| Jan 12, 2023 | Jansen | 1–0 | Vojta | Prague Open | Czech Tour | French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | |
| Jan 11, 2023 | Bolk | 0–1 | Jansen | Prague Open | Czech Tour | Polish Opening | |
| Jan 10, 2023 | Jansen | * | Pyrig | Prague Open | Czech Tour | ? | |
| Jan 9, 2023 | Neuman | 1–0 | Jansen | Prague Open | Czech Tour | English Opening: Anglo-Dutch Defense | |
| Jan 8, 2023 | Jansen | 1–0 | Evenshaug | Prague Open | Czech Tour | Sicilian Defense: Smith-Morra Gambit Accepted, Scheveningen Formation | |
| Jan 7, 2023 | Tolmacevs | ½–½ | Jansen | Prague Open | Czech Tour | French Defense: Winawer Variation, Advance Variation | |
| Jan 6, 2023 | Rousek | 0–1 | Jansen | Prague Open | Czech Tour | ? | |
| — | Jansen | 1–0 | Van der Velden | WLC 2022 A | Dutch Defense: Hopton Attack | |
| — | Jansen | 1–0 | Cebula | WLC 2022 A | Sicilian Defense: Smith-Morra Gambit Accepted, Scheveningen Formation | |
| — | Jansen | 1–0 | Boeren | WLC 2022 A | Rapport-Jobava System | |
| — | De Vries | 0–1 | Jansen | WLC 2022 A | Zukertort Opening: Queen's Gambit Invitation | |
| — | Roebers | 1–0 | Jansen | WLC 2022 A | French Defense: Winawer Variation, Retreat Variation, Armenian Line | |
| — | Baselmans | 1–0 | Jansen | WLC 2022 A | Alekhine Defense: Modern Variation, Alburt Variation | |