Progress against the field
From Utrecht 2025 to Heerenveen 2026, the field gained 7:14 on Zenna Koopman.
The clock says 2:30 slower, but the races themselves got 4:44 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. The summary above covers Individual Pro · Women, the one raced most; every comparison is in the list below.
Every race
7 races · 7 events
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Heerenveen14 May 2026Individual Pro · Women1:27:4494/155Beat 39%
↑ 113 days after Amsterdam 2026 5:09 worse than the field Why ↓Close ↑
5:15 slower on the clock in a race that was 0:06 slower for everyone: 5:09 lost to the field.
The fieldCompare these two →0:06 slower This athlete5:15 slower -
Rotterdam15 Apr 2026Doubles Open · Mixed1:10:46 PB75/544Beat 86%
↑ 552 days after Amsterdam 2024, with Thiemen Pen 7:09 better than the field Why ↓Close ↑
12:17 faster on the clock, and the race was 5:08 faster for everyone, so 7:09 of it was this pair.
The fieldCompare these two →5:08 faster This pair12:17 faster -
Amsterdam21 Jan 2026Individual Pro · Women1:22:29 PB65/128Beat 49%
↑ 54 days after Utrecht 2025 2:05 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:45 faster on the clock looks better than it was: the race was 4:50 faster for everyone, which leaves this 2:05 behind the field.
The fieldCompare these two →4:50 faster This athlete2:45 faster -
Utrecht28 Nov 2025Individual Pro · Women1:25:1420/67Beat 70%
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Heerenveen9 May 2025Individual Open · Women1:22:52 PB91/571Beat 84%
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Rotterdam27 Feb 2025Doubles Open · Women1:13:23 PB20/272Beat 93%
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Amsterdam10 Oct 2024Doubles Open · Mixed1:23:03185/376Beat 51%