| May 24, 2026 | Terlouw | 0–1 | De Boer | Round 13: Terlouw, Wouter - De Boer, Eelke | Catalan Opening: Open Defense | |
| May 24, 2026 | De Boer | ½–½ | Van der Werf | Round 12: De Boer, Eelke - Van der Werf, Mark | Ruy Lopez: Closed, Martinez Variation | |
| May 24, 2026 | Slagboom | ½–½ | De Boer | Round 11: Slagboom, Leandro - De Boer, Eelke | Sicilian Defense: Modern Variations | |
| May 24, 2026 | De Boer | 0–1 | Ootes | Round 10: De Boer, Eelke - Ootes, Lars | Pirc Defense: Classical Variation, Quiet System | |
| May 24, 2026 | Jellema | ½–½ | De Boer | Round 8: Jellema, Pieter - De Boer, Eelke | Indian Defense: London System | |
| May 23, 2026 | De Boer | 1–0 | Grochal | Round 5: De Boer, Eelke - Grochal, Joey | Ruy Lopez: Closed, Martinez Variation | |
| May 23, 2026 | De Boer | 0–1 | Den Hartog | Round 7: De Boer, Eelke - Den Hartog, Marijn | French Defense: Advance Variation, Euwe Variation | |
| May 23, 2026 | Aravindhan | 0–1 | De Boer | Round 6: Aravindhan, Achyuth - De Boer, Eelke | Scandinavian Defense: Classical Variation | |
| May 23, 2026 | Bekker | 0–1 | De Boer | Round 4: Bekker, Stefan - De Boer, Eelke | King's Indian Attack: Double Fianchetto | |
| May 23, 2026 | De Boer | 1–0 | Pel | Round 3: De Boer, Eelke - Pel, Bonno | Pirc Defense: Classical Variation | |
| May 23, 2026 | Simenon | 0–1 | De Boer | Round 2: Simenon, Jozef - De Boer, Eelke | Polish Opening: Tartakower Gambit | |
| May 23, 2026 | De Boer | 1–0 | Kamphuis | Round 1: De Boer, Eelke - Kamphuis, Jasper | Ruy Lopez: Morphy Defense, Norwegian Variation | |
| May 19, 2026 | De Boer | 1–0 | Grooten | Round 9: De Boer, Eelke - Grooten, Tommy | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Apr 11, 2026 | De Boer | ½–½ | Donker | Round 9: De Boer, Eelke - Donker, Roel | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Mar 28, 2026 | Tjiam | ½–½ | De Boer | Round 6: Tjiam, Dharma - De Boer, Eelke | Zukertort Opening: Reversed Grünfeld | |
| Mar 7, 2026 | Ootes | 1–0 | De Boer | Round 8: Ootes, Lars - De Boer, Eelke | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Feb 7, 2026 | De Boer | ½–½ | Van Delft | Round 7: De Boer, Eelke - Van Delft, Merijn | Sicilian Defense: Najdorf Variation, Zagreb Variation | |
| Dec 29, 2025 | De Boer | 0–1 | Aakash G | Round 9: De Boer, Eelke - Aakash G | French Defense: Tarrasch Variation, Closed Variation, Main Line | |
| Dec 28, 2025 | Jin | ½–½ | De Boer | Round 8: Jin, Yueheng - De Boer, Eelke | Slav Defense: Quiet Variation | |
| Dec 28, 2025 | De Boer | 1–0 | Bakker | Round 7: De Boer, Eelke - Bakker, Jouke | Sicilian Defense: French Variation, Westerinen Attack | |
| Dec 26, 2025 | Kamphuis | 0–1 | De Boer | Round 6: Kamphuis, Jasper - De Boer, Eelke | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Dec 26, 2025 | De Boer | ½–½ | Pham | Round 5: De Boer, Eelke - Pham, Khoi | Ruy Lopez: Closed, Anti-Marshall | |
| Dec 24, 2025 | De Boer | 0–1 | Grooten | Round 5: De Boer, Eelke - Grooten, Tommy | Grünfeld Defense: Exchange Variation, Spassky Variation | |
| Dec 24, 2025 | Sydykov | 1–0 | De Boer | Round 4: Sydykov, Bayastan - De Boer, Eelke | Sicilian Defense: Moscow Variation | |
| Dec 23, 2025 | De Boer | ½–½ | Smeets | Round 3: De Boer, Eelke - Smeets, Kobe | English Opening: Caro-Kann Defensive System | |
| Dec 22, 2025 | Koster | ½–½ | De Boer | Round 2: Koster, Ramon - De Boer, Eelke | Benko Gambit Accepted: Modern Variation | |
| Dec 21, 2025 | De Boer | 1–0 | Rebers | Round 1: De Boer, Eelke - Rebers, Eugene | French Defense: Advance Variation, Paulsen Attack | |
| Nov 22, 2025 | Tabak | 0–1 | De Boer | Round 4: Tabak, Stefan - De Boer, Eelke | Sicilian Defense: Closed | |
| Nov 7, 2025 | De Boer | ½–½ | Dijkhuis | KNSB competitie 2025/2026 | King's Indian Defense: Semi-Averbakh System | |
| Oct 25, 2025 | De Boer | 0–1 | Soumya | Round 9: De Boer, Eelke - Soumya, Swaminathan | King's Indian Defense: Semi-Averbakh System | |
| Oct 24, 2025 | Li | ½–½ | De Boer | Round 8: Li, Hewei - De Boer, Eelke | King's Indian Defense: Fianchetto Variation, Classical Fianchetto | |
| Oct 23, 2025 | De Boer | 1–0 | Aamuktha Guntaka | Round 7: De Boer, Eelke - Aamuktha Guntaka | Queen's Indian Defense: Classical Variation, Traditional Variation | |
| Oct 22, 2025 | Baarspul | 0–1 | De Boer | Round 6: Baarspul, Bram - De Boer, Eelke | Ruy Lopez: Morphy Defense, Mackenzie Variation | |
| Oct 21, 2025 | De Boer | ½–½ | Kamphuis | Round 5: De Boer, Eelke - Kamphuis, Jasper | King's Indian Defense: Semi-Averbakh System | |
| Oct 21, 2025 | De Jong | 1–0 | De Boer | Round 4: De Jong, Migchiel - De Boer, Eelke | King's Indian Attack: Double Fianchetto | |
| Oct 20, 2025 | De Boer | 0–1 | Harikrishnan.A.Ra | Round 3: De Boer, Eelke - Harikrishnan.A.Ra | French Defense: Advance Variation, Paulsen Attack | |
| Oct 19, 2025 | Van Veelen | 0–1 | De Boer | Round 2: Van Veelen, Thomas - De Boer, Eelke | Queen's Gambit Declined: Three Knights Variation | |
| Oct 18, 2025 | De Boer | 1–0 | Van Helvoort | Round 1: De Boer, Eelke - Van Helvoort, Rob | Sicilian Defense: Four Knights Variation, Cobra Variation | |
| Oct 4, 2025 | Froeyman | 0–1 | De Boer | Round 2: Froeyman, Helmut - De Boer, Eelke | Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line | |
| Jul 29, 2025 | Elgersma | 0–1 | De Boer | Round 8: Elgersma, Onno - De Boer, Eelke | King's Indian Attack: Double Fianchetto | |
| Jul 28, 2025 | De Boer | 1–0 | Beerdsen | Round 7: De Boer, Eelke - Beerdsen, Thomas | English Defense | |
| Jul 26, 2025 | De Boer | 1–0 | Nemegeer | Round 5: De Boer, Eelke - Nemegeer, Arne | Sicilian Defense: Richter-Rauzer Variation | |
| Jul 25, 2025 | Madularea | ½–½ | De Boer | Round 4: Madularea, David - De Boer, Eelke | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Jul 24, 2025 | De Boer | 1–0 | Vortmeier | Round 3: De Boer, Eelke - Vortmeier, Jan | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Jul 23, 2025 | Kazarjan | ½–½ | De Boer | Round 2: Kazarjan, Gachatur - De Boer, Eelke | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack | |
| Jul 22, 2025 | De Boer | 1–0 | Grooten | Round 1: De Boer, Eelke - Grooten, Tommy | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Jul 16, 2025 | De Boer | ½–½ | Hausrath | Round 9: De Boer, Eelke - Hausrath, Daniel | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jul 16, 2025 | Korneev | ½–½ | De Boer | Round 6: Korneev, Oleg - De Boer, Eelke | Ruy Lopez: Berlin Defense, l'Hermet Variation, Berlin Wall Defense | |
| Jul 6, 2025 | De Boer | ½–½ | Beerdsen | Tiebreak: De Boer, Eelke - Beerdsen, Thomas | Grünfeld Defense: Russian Variation | |
| Jul 6, 2025 | Beerdsen | 1–0 | De Boer | Tiebreak: Beerdsen, Thomas - De Boer, Eelke | Catalan Opening: Open Defense, Classical Line | |
| Jul 6, 2025 | Beerdsen | ½–½ | De Boer | Game 2: Beerdsen, Thomas - De Boer, Eelke | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jun 23, 2025 | De Boer | ½–½ | Beerdsen | Game 1: De Boer, Eelke - Beerdsen, Thomas | Grünfeld Defense: Russian Variation, Szabo Variation | |
| Jun 9, 2025 | Vrolijk | ½–½ | De Boer | Round 9: Vrolijk, Liam - De Boer, Eelke | Catalan Opening: Open Defense | |
| Jun 8, 2025 | De Boer | 1–0 | Fier | Round 8: De Boer, Eelke - Fier, Alexandr | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jun 8, 2025 | Van Meegen | ½–½ | De Boer | Round 7: Van Meegen, Ruud - De Boer, Eelke | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Jun 7, 2025 | De Boer | 1–0 | Zelbel | Round 6: De Boer, Eelke - Zelbel, Patrick | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jun 7, 2025 | Grutter | ½–½ | De Boer | Round 5: Grutter, Tim - De Boer, Eelke | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Jun 6, 2025 | De Boer | 1–0 | Beukema | Round 4: De Boer, Eelke - Beukema, Stefan | Semi-Slav Defense: Normal Variation | |
| Jun 5, 2025 | Schoppen | 1–0 | De Boer | Round 3: Schoppen, Casper - De Boer, Eelke | English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit | |
| Jun 5, 2025 | De Boer | 1–0 | De Winter | Round 2: De Boer, Eelke - De Winter, Arthur | Bogo-Indian Defense: Retreat Variation | |
| Jun 4, 2025 | De Boer | 1–0 | Braun | Round 1: De Boer, Eelke - Braun, Christian | Pirc Defense: Classical Variation, Quiet System, Chigorin Line | |
| May 13, 2025 | De Boer | ½–½ | Hausrath | KNSB Meesterklasse 2024-2025 | Petrov's Defense: Classical Attack | |
| Apr 21, 2025 | De Boer | 0–1 | Knuedel | Grenke Chess Open A | Ruy Lopez: Closed, Martinez Variation | |
| Apr 21, 2025 | Gkavardinas | ½–½ | De Boer | Round 8: Gkavardinas, Antonios - De Boer, Eelke | Sicilian Defense: Four Knights Variation, Exchange Variation | |
| Apr 20, 2025 | De Boer | 1–0 | Kovacsy | Round 7: De Boer, Eelke - Kovacsy, Barnabas | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Apr 20, 2025 | Boder | 1–0 | De Boer | Round 6: Boder, Jan - De Boer, Eelke | English Opening: Neo-Catalan | |
| Apr 19, 2025 | De Boer | 1–0 | Schulze | Round 5: De Boer, Eelke - Schulze, Marc | Modern Defense | |
| Apr 18, 2025 | De Boer | 1–0 | Schulte-Geers | Round 2: De Boer, Eelke - Schulte-Geers, Niklas | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Apr 18, 2025 | De Boer | 1–0 | Bargsten | Round 3: De Boer, Eelke - Bargsten, Justus | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Apr 18, 2025 | Yuffa | 1–0 | De Boer | Round 4: Yuffa, Daniil - De Boer, Eelke | English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit | |
| Apr 5, 2025 | De Boer | ½–½ | Korneev | Round 8: De Boer, Eelke - Korneev, Oleg | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Mar 8, 2025 | De Boer | ½–½ | De Jong | Round 7: De Boer, Eelke - De Jong, Jan-Willem | Ruy Lopez: Open, Main Line | |
| Feb 8, 2025 | Dardha | ½–½ | De Boer | Round 6: Dardha, Daniel - De Boer, Eelke | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| Dec 14, 2024 | Raats | 0–1 | De Boer | KNSB | Sicilian Defense: Closed | |
| Nov 23, 2024 | Ikonnikov | ½–½ | De Boer | Meesterklasse 24-25 | Queen's Gambit Declined: Semi-Tarrasch Defense, Main Line | |
| Sep 21, 2024 | De Winter | 0–1 | De Boer | KNSB Meesterklasse 2024-2025 | Queen's Pawn Game: London System | |
| Jul 29, 2024 | De Boer | 1–0 | Schuricht | Round 6: De Boer, Eelke - Schuricht, Emil Frederick | Caro-Kann Defense: Advance Variation, Short Variation | |
| Jul 27, 2024 | Slagboom | ½–½ | De Boer | Round 5: Slagboom, Leandro - De Boer, Eelke | Petrov's Defense: Classical Attack, Staunton Variation | |
| Jul 26, 2024 | De Boer | 1–0 | Labruyere | Round 4: De Boer, Eelke - Labruyere, Roger | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Jul 24, 2024 | De Boer | 1–0 | Van Rootselaar | Round 2: De Boer, Eelke - Van Rootselaar, Rik | Sicilian Defense: Kalashnikov Variation | |
| Jul 23, 2024 | Op den Dries | 0–1 | De Boer | Round 1: Op den Dries, Johan - De Boer, Eelke | Sicilian Defense: Closed | |
| Jul 22, 2024 | Hausrath | 1–0 | De Boer | Round 3: Hausrath, Daniel - De Boer, Eelke | King's Indian Attack: Symmetrical Defense | |
| Apr 1, 2024 | De Boer | ½–½ | Albers | Grenke Chess Open 2024 | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Mar 31, 2024 | De Boer | ½–½ | Cernov | new tournament description | Sicilian Defense: Four Knights Variation | |
| Mar 31, 2024 | Hinterreiter | 1–0 | De Boer | new tournament description | Zukertort Opening: Sicilian Invitation | |
| Mar 30, 2024 | Vogel | 1–0 | De Boer | Grenke Chess Open 2024 | Zukertort Opening | |
| Dec 30, 2024 | Keuning | 0–1 | De Boer | Round 9: Keuning, Selwin - De Boer, Eelke | Caro-Kann Defense: Two Knights Attack | |
| Dec 29, 2024 | Kazakouski | 1–0 | De Boer | Round 8: Kazakouski, Valery - De Boer, Eelke | French Defense: Advance Variation, Euwe Variation | |
| Dec 28, 2024 | De Boer | 0–1 | Vijayakumar | Round 7: De Boer, Eelke - Vijayakumar, Rishi | Catalan Opening: Open Defense, Classical Line | |
| Dec 27, 2024 | Van Rootselaar | ½–½ | De Boer | Round 6: Van Rootselaar, Rik - De Boer, Eelke | Catalan Opening: Open Defense | |
| Dec 26, 2024 | De Boer | 1–0 | Nicolai | Round 5: De Boer, Eelke - Nicolai, Amir | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Dec 24, 2024 | De Boer | ½–½ | Van Roon | Round 4: De Boer, Eelke - Van Roon, Sjoerd | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Dec 23, 2024 | Van Foreest | 1–0 | De Boer | Round 3: Van Foreest, Machteld - De Boer, Eelke | Sicilian Defense: Modern Variations | |
| Dec 22, 2024 | De Boer | 1–0 | Sharma | Round 2: De Boer, Eelke - Sharma, Dinesh K. | Sicilian Defense: Najdorf Variation | |
| Dec 21, 2024 | Grooten | ½–½ | De Boer | Round 1: Grooten, Herman - De Boer, Eelke | Queen's Gambit Declined: Three Knights Variation | |
| Nov 9, 2024 | De Boer | 1–0 | Lombaers | Round 3: De Boer, Eelke - Lombaers, Peter | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| Oct 12, 2024 | De Boer | ½–½ | Kuipers | Round 2: De Boer, Eelke - Kuipers, Stefan | Philidor Defense: Lion Variation | |
| Aug 10, 2024 | Bharath Subramaniyam H | ½–½ | De Boer | Round 9: Bharath Subramaniyam H - De Boer, Eelke | Petrov's Defense: Classical Attack, Marshall Variation | |
| Aug 9, 2024 | De Boer | ½–½ | Karacsonyi | Round 8: De Boer, Eelke - Karacsonyi, Gellert | Ruy Lopez: Morphy Defense, Classical Defense Deferred | |
| Aug 8, 2024 | Hausrath | ½–½ | De Boer | Round 7: Hausrath, Daniel - De Boer, Eelke | Zukertort Opening | |