| Game | Result | Opening | Date |
|---|---|---|---|
| Harff,M (2338) – Tjiam,D (2350) | 1-0 | English opening | 2026-03-29 |
| Tjiam,D (2355) – De Boer,Eelke (2415) | 1/2-1/2 | Reti | 2026-03-28 |
| Tjiam,D (2349) – Beukema,S (2394) | 1-0 | QGD Slav | 2026-02-07 |
| Ondersteijn,N (2373) – Tjiam,D (2361) | 1-0 | English, 1...Nf6 (Anglo-Indian defense) | 2025-11-22 |
| Tjiam,D (2361) – Van Beek,L (2335) | 1/2-1/2 | English | 2025-11-01 |
| Godart,F (2385) – Tjiam,D (2362) | 1-0 | Pirc | 2025-03-16 |
| Tjiam,D (2362) – Van der Hagen,Loek (2300) | 1-0 | QGD | 2025-03-08 |
| Tjiam,D (2362) – Kollen,Z (2356) | 1/2-1/2 | Nimzo-Indian | 2025-02-08 |
| Beerdsen,Thomas (2502) – Tjiam,D (2365) | 1-0 | Pirc | 2025-01-26 |
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