| Athletes |
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Biographical data for: Ralph KOOLOOS
| Classifications in season 2025/2026: |
| Results in season 2025/2026: |
| 500 meter |
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| 1000 meter |
| 1:56 | .771 | 18/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Semi Final, Group 2 | |
| 1:58 | .301 | 18/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Final, Group 5 |  |
| 1:58 | .997 | 18/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Quarter Finals, Group 1 | |
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| 2000 meter relay |
| 3:42 | .795 | 16/11/25 | Utrecht NED | Regional league NED West 1 - Sebra Sports Cup | Final, Group 1 | |
| (Team M7: Ralph Kooloos, Mia Scargo, Daan van Houten, Kees Van Wageningen) |
| 3:50 | .947 | 19/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Final, Group 1 | |
| (IHC Leiden - D: Kylian Bodijn, Miel Juffermans, Quinten Kohler, Ralph Kooloos) |
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