Progress against the field
Between Rotterdam 2025 and Utrecht 2025, marisja Groen pulled 2:30 ahead of the field.
The clock says 4:23 faster, but the races themselves got 1:53 quicker for everyone.
How this is worked out ⓘ
A finish time moves for two reasons: the athlete, and the race — its course, its floor, its day. For each pair of races in a row in one category, we take everyone who raced both and use the middle of how much they moved (the median) as "the race". Whatever is left is the athlete. Doubles are compared only when the same two people raced both, and told as the pair's; relays are left out. A pair with fewer than 15 athletes in common is not shown.
Every race
5 races · 5 events
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Rotterdam15 Apr 2026Doubles Open · Mixed1:16:08282/1047Beat 73%
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Gent12 Dec 2025Doubles Open · Mixed1:13:42 PB221/863Beat 74%
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Utrecht28 Nov 2025Individual Open · Women1:27:08 PB166/619Beat 73%
↑ 274 days after Rotterdam 2025 2:30 better than the field Why ↓Close ↑
4:23 faster on the clock, and the race was 1:53 faster for everyone, so 2:30 of it was this athlete.
The fieldCompare these two →1:53 faster This athlete4:23 faster -
Maastricht19 Sep 2025Relay · Mixed1:05:148/36Beat 78%
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Rotterdam27 Feb 2025Individual Open · Women1:31:31201/506Beat 60%