Progress against the field
Marijke Van Zwol has dropped 5:45 behind the field from Amsterdam 2026 to Heerenveen 2026.
Over the same races everyone got 1:19 quicker, so 4:26 slower on the clock looks better than it was.
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
4 races · 2 events
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Heerenveen14 May 2026Doubles Open · Women1:20:17 PB168/513Beat 67%
↑ 113 days after Amsterdam 2026, with Brechje van Ommeren 0:55 better than the field Why ↓Close ↑
3:26 faster on the clock, and the race was 2:31 faster for everyone, so 0:55 of it was this pair.
The fieldCompare these two →2:31 faster This pair3:26 faster -
Heerenveen14 May 2026Individual Open · Women1:41:36376/608Beat 38%
↑ 113 days after Amsterdam 2026 5:45 worse than the field Why ↓Close ↑
5:45 behind the field: 4:26 slower on the clock, against 1:19 faster for everyone.
The fieldCompare these two →1:19 faster This athlete4:26 slower -
Amsterdam21 Jan 2026Doubles Open · Women1:23:43465/1030Beat 55%
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Amsterdam21 Jan 2026Individual Open · Women1:37:10 PB729/1122Beat 35%