| Game | Result | Opening | Date |
|---|---|---|---|
| Dessyn, Timothee (2257) – Den Hartog, Marijn (2209) | 1-0 | Benoni Defense: Fianchetto Variation | 2026-07-28 |
| Den Hartog, Marijn (2209) – Roelandt, Jesse (1993) | 1-0 | Catalan Opening: Open Defense, Classical Line | 2026-07-27 |
| Den Hartog, Marijn (2209) – Roelandt, Jesse (1993) | 1-0 | Semi-Slav Defense: Quiet Variation | 2026-07-27 |
| Den Hartog, Marijn (2209) – Roelandt, Jesse (1993) | 1-0 | Zukertort Opening: Sicilian Invitation | 2026-07-27 |
| Vlieger, Olaf (2115) – Den Hartog, Marijn (2209) | 1/2-1/2 | Modern Defense: Two Knights Variation, Suttles Variation | 2026-07-26 |
| Den Hartog, Marijn (2209) – Van Osch, Mees (2326) | 0-1 | King's Indian Attack: Sicilian Variation | 2026-07-25 |
| Habig, Bryan (2077) – Den Hartog, Marijn (2209) | 0-1 | English Opening: King's English Variation, Kramnik-Shirov Counterattack | 2026-07-24 |
| Den Hartog, Marijn (2209) – Harshavardhan G B (2508) | 0-1 | Ruy Lopez: Morphy Defense, Anderssen Variation | 2026-07-23 |
| Lu, Yunong Elias (2112) – Den Hartog, Marijn (2209) | 0-1 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | 2026-07-22 |
| Den Hartog, Marijn (2209) – Peyrer, Konstantin (2496) | 0-1 | King's Indian Attack: Symmetrical Defense | 2026-07-21 |
| Schoorl, Rob (2284) – Den Hartog, Marijn (2209) | 1/2-1/2 | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | 2026-07-19 |
| Den Hartog, Marijn (2209) – Dovgaliuk, Oleksandr (2305) | 1-0 | Catalan Opening: Open Defense, Classical Line | 2026-07-18 |
| Den Hartog, Marijn (2209) – Brienen, Jacob (2090) | 1-0 | Indian Defense: Knights Variation | 2026-07-17 |
| De Boer, Eelke (2406) – Den Hartog, Marijn (2209) | 1-0 | Italian Game: Classical Variation, Giuoco Pianissimo | 2026-07-15 |
| Den Hartog, Marijn (2209) – Bosboom, Manuel (2328) | 1-0 | Queen's Pawn Game: Modern Defense | 2026-07-14 |
| Albers, Sasa (2365) – Den Hartog, Marijn (2209) | 1/2-1/2 | English Opening | 2026-07-13 |
| Den Hartog, Marijn (2209) – Andringa, Arjo (1965) | 1-0 | English Opening: Neo-Catalan | 2026-07-12 |
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