| Athletes |
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Biographical data for: Tamar KOOLWIJK
| Results in season 2024/2025: |
| 500 meter |
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| 1000 meter |
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| 1500 meter |
| 2:55 | .209 | 20/09/24 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 1 | Final, Group 1 | |
| 2:58 | .151 | 20/09/24 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 1 | Semi Final, Group 1 | |
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| 3000 meter relay |
| 4:44 | .827 | 22/09/24 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 1 | Final, Group 1 | |
| (DKIJV Delft: Lisa Den Hertog, Tamar Koolwijk, Nina Loman, Stian van Etten) |
| 4:55 | .547 | 31/08/24 | Heerenveen NED | Openingswedstrijd NED | Final, Group 1 | |
| (Team H: Yente Brouwers, Tamar Koolwijk, Loek Ter Hart, Valentijn Wilhelm) |
| 5:06 | .262 | 02/11/24 | Heerenveen NED | National League NED-KNSB Cup Top 1 | Finale, Groep 1 | |
| (Team 3: Sanne Brinksma, Tamar Koolwijk, Yteke Soepboer, Roos Van Der Zwet) |
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