Progress against the field
From Rotterdam 2025 to Heerenveen 2026, the field gained 5:50 on Brenda Zwolle.
Over the same races everyone got 5:36 quicker, so 0:14 slower on the clock looks better than it was.
The longest gap between two races compared here, 274 days between Rotterdam 2025 and Utrecht 2025, cost 10:41 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
5 races · 5 events
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Heerenveen14 May 2026Individual Open · Women1:28:34141/427Beat 67%
↑ 167 days after Utrecht 2025 4:51 better than the field Why ↓Close ↑
8:34 faster on the clock, and the race was 3:43 faster for everyone, so 4:51 of it was this athlete.
The fieldCompare these two →3:43 faster This athlete8:34 faster -
Utrecht28 Nov 2025Individual Open · Women1:37:08329/619Beat 47%
↑ 274 days after Rotterdam 2025 10:41 worse than the field Why ↓Close ↑
8:48 slower on the clock in a race that was 1:53 faster for everyone: 10:41 lost to the field.
The fieldCompare these two →1:53 faster This athlete8:48 slower -
Heerenveen9 May 2025Doubles Open · Women1:26:39163/292Beat 44%
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Rotterdam27 Feb 2025Individual Open · Women1:28:20 PB161/506Beat 68%
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Hamburg2 Nov 2024Doubles Open · Women1:25:23 PB324/609Beat 47%