| Oct 25, 2024 | De Boer | 1–0 | Garcia Molina | 39th European Chess Club Cup | Queen's Gambit Declined: Vienna Variation, Quiet Variation | |
| Oct 24, 2024 | De Boer | 1–0 | Tsapaki | 39th European Chess Club Cup | Bogo-Indian Defense: Grünfeld Variation | |
| Oct 23, 2024 | Atalik | 1–0 | De Boer | 39th European Chess Club Cup | Catalan Opening: Open Defense | |
| Oct 22, 2024 | De Boer | ½–½ | Schmidt | 39th European Chess Club Cup | King's Indian Attack | |
| Oct 21, 2024 | Stevik | 1–0 | De Boer | 39th European Chess Club Cup | Zukertort Opening: Reversed Grünfeld | |
| Oct 20, 2024 | De Boer | 1–0 | Daros | 39th European Chess Club Cup | Catalan Opening: Closed | |
| Oct 10, 2024 | Gaitan Moyano | 0–1 | De Boer | Round 6: Gaitan Moyano, Juan - De Boer, Bas | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Oct 9, 2024 | De Boer | 0–1 | Galiana Salom | Round 5: De Boer, Bas - Galiana Salom, Juan Ramon | Bogo-Indian Defense: Grünfeld Variation | |
| Mar 30, 2024 | De Boer | ½–½ | Makkar | new tournament description | ? | |
| Dec 30, 2024 | De Boer | ½–½ | Kazarjan | Round 9: De Boer, Bas - Kazarjan, Gachatur | Zukertort Opening: Reversed Grünfeld | |
| Dec 29, 2024 | Madularea | ½–½ | De Boer | Round 8: Madularea, David - De Boer, Bas | Petrov's Defense: Kaufmann Attack | |
| Dec 28, 2024 | De Boer | ½–½ | Van der Hagen | Round 7: De Boer, Bas - Van der Hagen, Loek | Robatsch Defense | |
| Dec 27, 2024 | De Boer | 1–0 | Ponnio | Round 6: De Boer, Bas - Ponnio, Toni | Queen's Gambit Declined: Three Knights Variation | |
| Dec 26, 2024 | Spit | 0–1 | De Boer | Round 5: Spit, Vincent - De Boer, Bas | Petrov's Defense: Classical Attack, Staunton Variation | |
| Dec 24, 2024 | Noordenbos | 1–0 | De Boer | Round 4: Noordenbos, Daan - De Boer, Bas | Sicilian Defense: Richter-Rauzer Variation, Modern Variation | |
| Dec 23, 2024 | De Boer | ½–½ | Van Rootselaar | Round 3: De Boer, Bas - Van Rootselaar, Rik | Tarrasch Defense: Symmetrical Variation | |
| Dec 22, 2024 | Wouters | ½–½ | De Boer | Round 2: Wouters, Casper - De Boer, Bas | Sicilian Defense: French Variation | |
| Dec 21, 2024 | De Boer | 0–1 | Kollen | Round 1: De Boer, Bas - Kollen, Zyon | Indian Defense: Anti-Nimzo-Indian | |
| Nov 3, 2024 | De Boer | 0–1 | Nedic | Round 7: De Boer, Bas - Nedic, Dusan | Benoni Defense: Knight's Tour Variation | |
| Nov 2, 2024 | De Boer | ½–½ | Mix | Round 5: De Boer, Bas - Mix, Clemens | Slav Defense: Quiet Variation | |
| Nov 2, 2024 | Dorendorf | 0–1 | De Boer | Round 6: Dorendorf, Mika - De Boer, Bas | Nimzo-Indian Defense: Normal Variation | |
| Nov 1, 2024 | De Boer | 1–0 | Capelja | Round 3: De Boer, Bas - Capelja, Christian | English Opening: Symmetrical Variation, Four Knights Variation | |
| Nov 1, 2024 | Goldenstein | ½–½ | De Boer | Round 4: Goldenstein, Arnd - De Boer, Bas | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| Oct 31, 2024 | De Boer | ½–½ | Piepenhagen | Round 1: De Boer, Bas - Piepenhagen, Eric | Queen's Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line | |
| Oct 31, 2024 | Kirschbaum | 0–1 | De Boer | Round 2: Kirschbaum, Gunnar - De Boer, Bas | Nimzo-Indian Defense: Classical Variation | |
| Oct 13, 2024 | De Boer | 0–1 | Castell Cantero | Round 9: De Boer, Bas - Castell Cantero, Salvador | Old Indian Defense | |
| Oct 12, 2024 | Stanford | ½–½ | De Boer | Round 8: Stanford, Sheila Barth - De Boer, Bas | Bird Opening: Dutch Variation | |
| Oct 11, 2024 | De Boer | 1–0 | Zschischang | Round 7: De Boer, Bas - Zschischang, Marine | Semi-Slav Defense: Accelerated Move Order | |
| Oct 8, 2024 | Midoux | ½–½ | De Boer | Round 4: Midoux, Sebastien - De Boer, Bas | Sicilian Defense: Moscow Variation, Main Line | |
| Oct 7, 2024 | De Boer | 1–0 | Planas Gene | Round 3: De Boer, Bas - Planas Gene, Juan | Queen's Gambit Declined | |
| Oct 6, 2024 | Lielmezs | 0–1 | De Boer | Round 2: Lielmezs, Girts - De Boer, Bas | English Opening: Anglo-Indian Defense, Hedgehog System | |
| Oct 5, 2024 | De Boer | 1–0 | Abadia Pascual | Round 1: De Boer, Bas - Abadia Pascual, Luis | Dutch Defense: Fianchetto Attack | |
| May 28, 2023 | De Boer | * | Decoster | Limburg Open | ? | |
| May 28, 2023 | Leenhouts | 1–0 | De Boer | Limburg Open | Nimzo-Indian Defense: Normal Variation | |
| May 28, 2023 | Pham | * | De Boer | Limburg Open | ? | |
| May 27, 2023 | De Boer | ½–½ | Fischer | Limburg Open | Bogo-Indian Defense: Retreat Variation | |
| Jul 8, 2021 | Dev | 1–0 | De Boer | Serbia Chess Open | Masters | ? | |
| Jul 6, 2021 | De Boer | * | Klasan | Serbia Chess Open | Masters | ? | |
| Jul 5, 2021 | Ristic | * | De Boer | Serbia Chess Open | Masters | ? | |
| Jul 4, 2021 | De Boer | 0–1 | Irizanin | Serbia Chess Open | Masters | ? | |
| Jul 3, 2021 | Velickovic | 0–1 | De Boer | Serbia Chess Open | Masters | ? | |
| Jul 3, 2021 | Pastar | ½–½ | De Boer | Serbia Chess Open | Masters | ? | |
| Jul 2, 2021 | De Boer | 0–1 | Yankelevich | Serbia Chess Open | Masters | ? | |