| Athletes |
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Biographical data for: Marjan KOERSELMAN
| Results in season 2025/2026: |
| 500 meter |
| 57 | .50 | 24/01/26 | Dordrecht NED | Regional League NED West 4 - Sebra Sports Cup | Final, Group 3 | |
| 57 | .729 | 01/11/25 | Groningen NED | International Autumn Tournament | Final, Group 1 | |
| 57 | .774 | 16/11/25 | Utrecht NED | Regional league NED West 1 - Sebra Sports Cup | Semi Final, Group 1 | |
| 57 | .940 | 28/02/26 | Hasselt BEL | Speculaas Cup - Golden Sun Award 3 | Quarter Finals, Group 1 | |
| 58 | .072 | 01/03/26 | Hasselt BEL | Speculaas Cup - Golden Sun Award 3 | Final, Group 3 | |
| 58 | .40 | 24/01/26 | Dordrecht NED | Regional League NED West 4 - Sebra Sports Cup | Semi Final, Group 2 | |
| 58 | .446 | 11/01/26 | Alkmaar NED | Regional League NED West 3 - Sebra Sports Cup | Final, Group 2 | |
| 58 | .525 | 11/01/26 | Alkmaar NED | Regional League NED West 3 - Sebra Sports Cup | Semi Final, Group 1 | |
| 58 | .535 | 01/03/26 | Hasselt BEL | Speculaas Cup - Golden Sun Award 3 | Semi Final, Group 2 | |
| 58 | .548 | 11/01/26 | Alkmaar NED | Regional League NED West 3 - Sebra Sports Cup | Quarter Finals, Group 1 | |
| 58 | .609 | 01/11/25 | Groningen NED | International Autumn Tournament | Semi Final, Group 1 | |
| 59 | .529 | 19/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Semi Final, Group 2 | |
| 59 | .608 | 16/11/25 | Utrecht NED | Regional league NED West 1 - Sebra Sports Cup | Quarter Finals, Group 1 | |
| 1:00 | .722 | 19/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Final, Group 3 | |
| 1:01 | .066 | 19/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Quarter Finals, Group 1 | |
| 1:11 | .86 | 24/01/26 | Dordrecht NED | Regional League NED West 4 - Sebra Sports Cup | Quarter Finals, Group 1 | |
| 1:12 | .033 | 16/11/25 | Utrecht NED | Regional league NED West 1 - Sebra Sports Cup | Final, Group 2 | |
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| 777 meter |
| 1:33 | .515 | 18/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Quarter Finals, Group 1 | |
| 1:34 | .350 | 18/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Semi Final, Group 2 | |
| 1:34 | .580 | 18/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Final, Group 3 | |
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| 1000 meter |
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| 1500 meter |
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| 2000 meter relay |
| 3:27 | .909 | 19/10/25 | Den Haag NED | Lara van Ruijven memorial - Golden Sun Award 2 | Final, Group 1 | |
| (Mix SVU-NSV-STA: Luc Arns, Marjan Koerselman, Jurre Roording, Peter van der Zwet) |
| 3:44 | .175 | 16/11/25 | Utrecht NED | Regional league NED West 1 - Sebra Sports Cup | Final, Group 1 | |
| (Team M8: Marjan Koerselman, Sil Reichart, Luna Suurd, Milan van den Brink) |
| 3:53 | .657 | 11/01/26 | Alkmaar NED | Regional League NED West 3 - Sebra Sports Cup | Final, Group 1 | |
| (Team 9: Marjan Koerselman, Jeroen Pennings, Kiki Szabo, Esmee Zijderlaan) |
| 3:56 | .49 | 24/01/26 | Dordrecht NED | Regional League NED West 4 - Sebra Sports Cup | Final, Group 1 | |
| (Team 24: Marjan Koerselman, Martijn Suurd, Lois Timmermans) |
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