Progress against the field
Judith Tillemans has dropped 5:50 behind the field from Rotterdam 2023 to Rotterdam 2026.
Over the same races everyone got 10:00 quicker, so 4:10 faster on the clock looks better than it was.
The longest gap between two races compared here, 552 days between Amsterdam 2023 and Heerenveen 2025, cost 7:38 on 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.
Every race
6 races · 6 events
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Maastricht19 Sep 2026Doubles Open · Women1:36:18296/418Beat 29%
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Heerenveen14 May 2026Doubles Open · Women1:23:27 PB245/513Beat 52%
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Rotterdam15 Apr 2026Individual Open · Women1:38:01225/485Beat 54%
↑ 341 days after Heerenveen 2025 1:41 worse than the field Faster on the clock, behind the field Why ↓Close ↑
4:06 faster on the clock looks better than it was: the race was 5:47 faster for everyone, which leaves this 1:41 behind the field.
The fieldCompare these two →5:47 faster This athlete4:06 faster -
Heerenveen9 May 2025Individual Open · Women1:42:07133/183Beat 27%
↑ 552 days after Amsterdam 2023 7:38 worse than the field Why ↓Close ↑
7:38 behind the field: 5:17 slower on the clock, against 2:21 faster for everyone.
The fieldCompare these two →2:21 faster This athlete5:17 slower -
Amsterdam4 Nov 2023Individual Open · Women1:36:50 PB216/394Beat 45%
↑ 168 days after Rotterdam 2023 3:29 better than the field Why ↓Close ↑
5:21 faster on the clock, and the race was 1:52 faster for everyone, so 3:29 of it was this athlete.
The fieldCompare these two →1:52 faster This athlete5:21 faster -
Rotterdam20 May 2023Individual Open · Women1:42:11179/290Beat 38%