| 24 may 2026 | Kamphuis, Jasper 2134 | Jellema, Pieter 2193 | 0-1 | B15 Defensa Caro-Kann: Forgacs Variation | Qualification Dutch Championship 2026 | 66 | Ver |
| 24 may 2026 | Jellema, Pieter 2193 | Terlouw, Wouter 2259 | 0-1 | D02 Apertura de Peón de Dama: London System | Qualification Dutch Championship 2026 | 38 | Ver |
| 24 may 2026 | Van der Werf, Mark 2384 | Jellema, Pieter 2193 | ½-½ | A91 Defensa Holandesa: Classical Variation | Qualification Dutch Championship 2026 | 21 | Ver |
| 24 may 2026 | Jellema, Pieter 2193 | Slagboom, Leandro 2334 | 0-1 | A45 Defensa India: Accelerated London System | Qualification Dutch Championship 2026 | 36 | Ver |
| 24 may 2026 | Ootes, Lars 2363 | Jellema, Pieter 2193 | 1-0 | B10 Defensa Caro-Kann: Two Knights Attack | Qualification Dutch Championship 2026 | 49 | Ver |
| 24 may 2026 | Jellema, Pieter 2193 | De Boer, Eelke 2406 | ½-½ | A46 Defensa India: London System | Qualification Dutch Championship 2026 | 25 | Ver |
| 23 may 2026 | Den Hartog, Marijn 2209 | Jellema, Pieter 2193 | 1-0 | B10 Defensa Caro-Kann: Endgame Variation | Qualification Dutch Championship 2026 | 47 | Ver |
| 23 may 2026 | Jellema, Pieter 2193 | Aravindhan, Achyuth 2213 | 1-0 | D02 Apertura de Peón de Dama: London System | Qualification Dutch Championship 2026 | 36 | Ver |
| 23 may 2026 | Grochal, Joey 2253 | Jellema, Pieter 2193 | 1-0 | A84 Defensa Holandesa: Normal Variation | Qualification Dutch Championship 2026 | 45 | Ver |
| 23 may 2026 | Jellema, Pieter 2193 | Bekker, Stefan 2367 | 0-1 | A45 Paleface Attack | Qualification Dutch Championship 2026 | 36 | Ver |
| 23 may 2026 | Pel, Bonno 2286 | Jellema, Pieter 2193 | 0-1 | A00 Apertura Húngara: Dutch Defense | Qualification Dutch Championship 2026 | 26 | Ver |
| 23 may 2026 | Jellema, Pieter 2193 | Simenon, Jozef 2288 | ½-½ | A45 Paleface Attack | Qualification Dutch Championship 2026 | 65 | Ver |
| 19 may 2026 | Jellema, Pieter 2193 | Grooten, Tommy 2356 | 0-1 | A45 Defensa India: Paleface Attack, Blackmar-Diemer Gambit Deferred | Qualification Dutch Championship 2026 | 77 | Ver |
| 25 oct 2025 | Jellema, Pieter 2171 | Zuferi, Enis 2336 | 0-1 | D02 Apertura de Peón de Dama: London System | Amsterdam Chess Open 2025 | 44 | Ver |