| 21 jun 2026 | Lombaers, Peter 2343 | Bosboom, Ardin 2200 | 1-0 | D38 Gambito de Dama rehusado: Ragozin Defense, Alekhine Variation | HSG Open 2026 A | 47 | Ver |
| 21 jun 2026 | Bosboom, Ardin 2200 | Terlouw, Wouter 2306 | ½-½ | E20 Defensa Nimzoindia: Kmoch Variation | HSG Open 2026 A | 46 | Ver |
| 19 jun 2026 | Albers, Sasa 2342 | Bosboom, Ardin 2200 | 1-0 | A20 Apertura Inglesa: King's English Variation | HSG Open 2026 A | 46 | Ver |
| 17 may 2026 | Bosboom, Ardin 2154 | Bulthuis, Jelle 2128 | ½-½ | C11 Defensa Francesa: Steinitz Variation | Utrecht Open 2026 | Group A | 69 | Ver |
| 16 may 2026 | Pomares Diaz, Manuel Alejandro 2302 | Bosboom, Ardin 2154 | 0-1 | A46 Defensa India: Knights Variation | Utrecht Open 2026 | Group A | 42 | Ver |
| 16 may 2026 | Van Roon, Sjoerd 2303 | Bosboom, Ardin 2154 | 0-1 | C50 Apertura Italiana: Giuoco Pianissimo, Italian Four Knights Variation | Utrecht Open 2026 | Group A | 39 | Ver |
| 15 may 2026 | Bosboom, Ardin 2154 | Van de Griendt, Jan Willem 2363 | 1-0 | A57 Gambito Benko aceptado: Modern Variation | Utrecht Open 2026 | Group A | 69 | Ver |
| 14 may 2026 | Ten Hertog, Hugo 2513 | Bosboom, Ardin 2154 | 1-0 | A21 Apertura Inglesa: King's English Variation, Kramnik-Shirov Counterattack | Utrecht Open 2026 | Group A | 30 | Ver |
| 24 oct 2025 | Eren, Ataberk 2417 | Bosboom, Ardin 2142 | 1-0 | E51 Defensa Nimzoindia: Normal Variation, Ragozin Variation | Amsterdam Chess Open 2025 | 40 | Ver |