Progress against the field
Between Rotterdam 2024 and Rotterdam 2026, Marit van Oudheusden pulled 14:21 ahead of the field.
Over the same races everyone got 3:08 quicker, so 17:29 faster on the clock looks better than it was.
The longest gap between two races compared here, 412 days between Rotterdam 2025 and Rotterdam 2026, still ended 8:29 ahead of the field.
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. The summary above covers Individual Open · Women, the one raced most; every comparison is in the list below.
Every race
5 races · 5 events
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Rotterdam15 Apr 2026Individual Open · Women1:33:59 PB324/695Beat 53%
↑ 412 days after Rotterdam 2025 8:29 better than the field Why ↓Close ↑
9:27 faster on the clock, and the race was 0:58 faster for everyone, so 8:29 of it was this athlete.
The fieldCompare these two →0:58 faster This athlete9:27 faster -
Amsterdam21 Jan 2026Doubles Open · Mixed1:19:00 PB587/1206Beat 51%
↑ 54 days after Utrecht 2025, with Ben Snoei 1:09 worse than the field Faster on the clock, behind the field Why ↓Close ↑
3:41 faster on the clock looks better than it was: the race was 4:50 faster for everyone, which leaves this 1:09 behind the field.
The fieldCompare these two →4:50 faster This pair3:41 faster -
Utrecht28 Nov 2025Doubles Open · Mixed1:22:41317/701Beat 55%
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Rotterdam27 Feb 2025Individual Open · Women1:43:26128/203Beat 37%
↑ 327 days after Rotterdam 2024 5:52 better than the field Why ↓Close ↑
8:02 faster on the clock, and the race was 2:10 faster for everyone, so 5:52 of it was this athlete.
The fieldCompare these two →2:10 faster This athlete8:02 faster -
Rotterdam6 Apr 2024Individual Open · Women1:51:28507/585Beat 13%