| Mar 7, 2026 | Van der Hagen | 0–1 | Sekandar | Round 8: Van der Hagen, Loek - Sekandar, Kambiz | King's Indian Attack, with e6 | |
| Mar 1, 2026 | De Winter | 1–0 | Van der Hagen | 2. Bundesliga Nord | Indian Defense: Anti-Grünfeld, Basman-Williams Attack | |
| Feb 7, 2026 | Kuipers | 1–0 | Van der Hagen | Round 7: Kuipers, Stefan - Van der Hagen, Loek | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Dec 26, 2025 | Elgersma | 1–0 | Van der Hagen | Round 5: Elgersma, Onno - Van der Hagen, Loek | Indian Defense: London System | |
| Nov 22, 2025 | Van der Hagen | ½–½ | Geirnaert | Round 4: Van der Hagen, Loek - Geirnaert, Steven | Italian Game: Giuoco Pianissimo, Canal Variation | |
| Nov 7, 2025 | Umudova | 1–0 | Van der Hagen | KNSB competitie 2025/2026 | Sicilian Defense | |
| Oct 4, 2025 | Van der Hagen | ½–½ | Van Roon | Round 2: Van der Hagen, Loek - Van Roon, Sjoerd | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| May 13, 2025 | Braun | ½–½ | Van der Hagen | KNSB Meesterklasse 2024-2025 | Sicilian Defense: Modern Variations | |
| Apr 5, 2025 | Van der Hagen | ½–½ | Jakhari | Round 8: Van der Hagen, Loek - Jakhari, Ansh | Sicilian Defense: Accelerated Dragon, Modern Variation | |
| Mar 8, 2025 | Tjiam | 1–0 | Van der Hagen | Round 7: Tjiam, Dharma - Van der Hagen, Loek | Queen's Gambit Declined: Ragozin Defense | |
| Jan 25, 2025 | Roesemann | 1–0 | Van der Hagen | marianky-2025 | English Opening: King's English Variation | |
| Jan 24, 2025 | Van der Hagen | 1–0 | Sliwerski | marianky-2025 | Sicilian Defense: Najdorf Variation, Main Line | |
| Jan 23, 2025 | Vaculik | 0–1 | Van der Hagen | marianky-2025 | Queen's Gambit Declined: Ragozin Defense | |
| Jan 22, 2025 | Van der Hagen | ½–½ | Pisk | marianky-2025 | Caro-Kann Defense: Two Knights Attack | |
| Jan 21, 2025 | Van der Hagen | 1–0 | Ochedzan | marianky-2025 | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Jan 21, 2025 | Tichy | ½–½ | Van der Hagen | marianky-2025 | English Opening: Anglo-Indian Defense | |
| Jan 20, 2025 | Van der Hagen | ½–½ | Konopka | marianky-2025 | Caro-Kann Defense: Two Knights Attack | |
| Jan 19, 2025 | Senthil Maran K | 1–0 | Van der Hagen | marianky-2025 | Queen's Gambit Accepted: Mannheim Variation | |
| Jan 18, 2025 | Van der Hagen | 1–0 | Bhagat Kush | marianky-2025 | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Feb 23, 2025 | Van der Hagen | 0–1 | Suvorov | Round 9: Van der Hagen, Loek - Suvorov, Luca | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Feb 22, 2025 | Schaefer | ½–½ | Van der Hagen | Round 8: Schaefer, Markus - Van der Hagen, Loek | Ruy Lopez: Cozio Defense | |
| Feb 8, 2025 | Van der Hagen | 1–0 | Bleeker | Round 6: Van der Hagen, Loek - Bleeker, Kasper | Sicilian Defense: Najdorf Variation | |
| Dec 14, 2024 | Van der Hagen | ½–½ | Froeyman | KNSB | Ruy Lopez: Exchange Variation, Gligoric Variation | |
| Nov 23, 2024 | Van der Hagen | 1–0 | Dreelinck | Meesterklasse | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Oct 24, 2024 | Torres Sanchez | 1–0 | Van der Hagen | 39th European Chess Club Cup | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Oct 21, 2024 | Johannsson | 1–0 | Van der Hagen | 39th European Chess Club Cup | Queen's Gambit Declined: Ragozin Defense, Vienna Variation | |
| Oct 20, 2024 | Van der Hagen | 1–0 | Maes | 39th European Chess Club Cup | Caro-Kann Defense: Two Knights Attack | |
| Sep 21, 2024 | Van der Hagen | 1–0 | Van der Eijk | KNSB Meesterklasse 2024-2025 | Ruy Lopez: Exchange Variation, King's Bishop Variation | |
| Jun 15, 2024 | Van der Hagen | 1–0 | Gudok | Round 9: Van der Hagen, Loek - Gudok, Viktor | Sicilian Defense: Closed | |
| Jun 15, 2024 | Van Foreest | 1–0 | Van der Hagen | Round 8: Van Foreest, Machteld - Van der Hagen, Loek | Sicilian Defense: Alapin Variation | |
| Jun 15, 2024 | Van der Hagen | 1–0 | Markuszewski | Round 7: Van der Hagen, Loek - Markuszewski, Maksymilian | Sicilian Defense: Closed | |
| Jun 15, 2024 | Beerdsen | 1–0 | Van der Hagen | Round 6: Beerdsen, Thomas - Van der Hagen, Loek | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jun 15, 2024 | Van der Hagen | 1–0 | Duson | Round 5: Van der Hagen, Loek - Duson, Robin | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jun 15, 2024 | Labruyere | ½–½ | Van der Hagen | Round 4: Labruyere, Roger - Van der Hagen, Loek | Sicilian Defense: Richter-Rauzer Variation | |
| Jun 15, 2024 | Van der Hagen | 1–0 | Van t Hoff | Round 3: Van der Hagen, Loek - Van t Hoff, Tom | Sicilian Defense: Accelerated Dragon, Modern Variation | |
| Jun 15, 2024 | Sander | 0–1 | Van der Hagen | Round 2: Sander, Dirk - Van der Hagen, Loek | King's Indian Defense: Makogonov Variation | |
| Jun 15, 2024 | Van der Hagen | 1–0 | Oxener | Round 1: Van der Hagen, Loek - Oxener, Aldo | Pirc Defense | |
| Dec 30, 2024 | Van der Hagen | 1–0 | Kanis | Round 9: Van der Hagen, Loek - Kanis, Sierk | Caro-Kann Defense: Two Knights Attack | |
| Dec 29, 2024 | Kazarjan | ½–½ | Van der Hagen | Round 8: Kazarjan, Gachatur - Van der Hagen, Loek | Sicilian Defense: Richter-Rauzer Variation | |
| Dec 28, 2024 | De Boer | ½–½ | Van der Hagen | Round 7: De Boer, Bas - Van der Hagen, Loek | Robatsch Defense | |
| Dec 27, 2024 | Van der Hagen | ½–½ | Keuning | Round 6: Van der Hagen, Loek - Keuning, Selwin | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Dec 26, 2024 | De Winter | 1–0 | Van der Hagen | Round 5: De Winter, Arthur - Van der Hagen, Loek | Grünfeld Defense: Three Knights Variation | |
| Dec 24, 2024 | Van der Hagen | ½–½ | Weber | Round 4: Van der Hagen, Loek - Weber, Samuel | Caro-Kann Defense: Two Knights Attack | |
| Dec 23, 2024 | Schilstra | 0–1 | Van der Hagen | Round 3: Schilstra, Laurens - Van der Hagen, Loek | King's Indian Defense: Normal Variation, Standard Development | |
| Dec 22, 2024 | Van der Hagen | ½–½ | Grooten | Round 2: Van der Hagen, Loek - Grooten, Tommy | Sicilian Defense: Scheveningen Variation, Keres Attack | |
| Dec 21, 2024 | Zecha | ½–½ | Van der Hagen | Round 1: Zecha, Oscar - Van der Hagen, Loek | Sicilian Defense: Richter-Rauzer Variation, Modern Variation | |
| Nov 9, 2024 | Wemmers | ½–½ | Van der Hagen | Round 3: Wemmers, Xander - Van der Hagen, Loek | Queen's Gambit Declined: Ragozin Defense | |
| Nov 3, 2024 | Van der Hagen | 1–0 | Redzisz | Ronda 9: Van der Hagen, Loek - Redzisz, Michal | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Nov 2, 2024 | Ynojosa Aponte | 1–0 | Van der Hagen | Ronda 8: Ynojosa Aponte, Felix Jose - Van der Hagen, Loek | Anderssen's Opening | |
| Nov 1, 2024 | Van der Hagen | 1–0 | Charvi A | Ronda 7: Van der Hagen, Loek - Charvi A | Sicilian Defense: Najdorf Variation, Main Line | |
| Nov 1, 2024 | Nettleton | 0–1 | Van der Hagen | Ronda 6: Nettleton, Charlie B - Van der Hagen, Loek | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Oct 31, 2024 | Van der Hagen | 0–1 | Tsiapko | Ronda 5: Van der Hagen, Loek - Tsiapko, Andrii | Sicilian Defense: Accelerated Dragon, Modern Variation | |
| Oct 30, 2024 | Rodriguez Lopez | 0–1 | Van der Hagen | Ronda 4: Rodriguez Lopez, Rafael - Van der Hagen, Loek | Ruy Lopez: Cozio Defense | |
| Oct 29, 2024 | Van der Hagen | 0–1 | Shuvalova | Ronda 3: Van der Hagen, Loek - Shuvalova, Polina | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Oct 28, 2024 | Blanco Sanjuan | 0–1 | Van der Hagen | Ronda 2: Blanco Sanjuan, Jorge - Van der Hagen, Loek | Queen's Gambit Declined: Ragozin Defense, Alekhine Variation | |
| Oct 27, 2024 | Van der Hagen | 1–0 | Bascunana Sanchez | Ronda 1: Van der Hagen, Loek - Bascunana Sanchez, Pablo | Trompowsky Attack | |
| Oct 23, 2024 | Van der Hagen | 0–1 | Lagarde | Round 4: Van der Hagen, Loek - Lagarde, Maxime | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Oct 22, 2024 | Van der Hagen | 1–0 | Ribstein | Round 3: Van der Hagen, Loek - Ribstein, Orel | Trompowsky Attack: Raptor Variation | |
| Oct 12, 2024 | Zwirs | ½–½ | Van der Hagen | Round 2: Zwirs, Nico - Van der Hagen, Loek | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 13, 2024 | Zwirs | 1–0 | Van der Hagen | Round 4: Zwirs, Nico - Van der Hagen, Loek | Italian Game: Giuoco Pianissimo, Normal | |
| May 29, 2023 | Leenhouts | ½–½ | Van der Hagen | Limburg Open | King's Indian Defense: Sämisch Variation, Panno Main Line | |
| May 28, 2023 | Modi | * | Van der Hagen | Limburg Open | ? | |
| May 26, 2023 | Van der Hagen | 0–1 | Schroeder | Limburg Open | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| May 6, 2023 | Slagboom | 0–1 | Van der Hagen | NJSK 2023 Jeugd A | Grünfeld Defense: Exchange Variation, Seville Variation | |
| May 5, 2023 | Moskalets | ½–½ | Van der Hagen | NJSK 2023 Jeugd A | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| May 4, 2023 | Van der Hagen | 0–1 | De Winter | NJSK 2023 Jeugd A | King's Indian Defense: Makogonov Variation | |
| May 3, 2023 | Van der Hagen | 1–0 | Wierenga | NJSK 2023 Jeugd A | Sicilian Defense: Closed | |
| May 2, 2023 | Van Kuijk | 0–1 | Van der Hagen | NJSK 2023 Jeugd A | Sicilian Defense: Richter-Rauzer Variation, Modern Variation | |
| May 1, 2023 | Van der Hagen | 1–0 | Boeren | NJSK 2023 Jeugd A | Italian Game: Giuoco Pianissimo, Canal Variation | |
| Apr 30, 2023 | Knol | 0–1 | Van der Hagen | NJSK 2023 Jeugd A | Modern Defense: Standard Defense | |