18 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Koolman, Colin Kyle Deniel | Sampi, Newton | 1/2-1/2 | A80 | CARIFTA 2026 U-18 to U-08 - U-14 | 2026-07-11 |
| Koolman, Colin Kyle Deniel | Swaminadha, Aquilani | 1-0 | D02 | CARIFTA 2026 U-18 to U-08 - U-14 | 2026-07-11 |
| Koolman, Colin Kyle Deniel | Wadhwani, Ronish | 1-0 | D02 | CARIFTA 2026 U-18 to U-08 - U-14 | 2026-07-11 |
| Koolman, Colin Kyle Deniel | Griffith, Jonathan | 0-1 | D02 | CARIFTA 2026 U-18 to U-08 - U-14 | 2026-07-11 |
| Koolman, Colin Kyle Deniel | Vanterpool, Jordan | 1-0 | D02 | CARIFTA 2026 U-18 to U-08 - U-14 | 2026-07-11 |
| Koolman, Colin Kyle Deniel | Galvez Lopez, Juan Martin | 0-1 | D04 | FIDE World Youth U16 Chess Olympiad 2025 | |
| Koolman, Colin Kyle Deniel | Umesh, Sohan | 0-1 | A80 | FIDE World Youth U16 Chess Olympiad 2025 | |
| Koolman, Colin Kyle Deniel | Soto Ramirez, Andres Camilo | 0-1 | D06 | FIDE World Youth U16 Chess Olympiad 2025 | |
| Koolman, Colin Kyle Deniel | Torres Hernandez, Deivy Santiago | 0-1 | D01 | FIDE World Youth U16 Chess Olympiad 2025 |