Progress against the field
From Utrecht 2025 to Heerenveen 2026, Miranda Zuyderduin and Doortje Kap got 8:28 faster than the field.
Over the same races everyone got 4:00 quicker, so 12:28 faster 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 Doubles Open · Women, with Doortje Kap, the one raced most; every comparison is in the list below.
Every race
7 races · 7 events
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Heerenveen14 May 2026Doubles Open · Women1:35:06 PB557/737Beat 24%
↑ 167 days after Utrecht 2025, with Doortje Kap 8:28 better than the field Why ↓Close ↑
12:28 faster on the clock, and the race was 4:00 faster for everyone, so 8:28 of it was this pair.
The fieldCompare these two →4:00 faster This pair12:28 faster -
Amsterdam21 Jan 2026Doubles Open · Women1:46:35978/1030Beat 5%
↑ 257 days after Heerenveen 2025, with Annemiek Reitmaier 8:31 worse than the field Why ↓Close ↑
8:31 behind the field: 5:36 slower on the clock, against 2:55 faster for everyone.
The fieldCompare these two →2:55 faster This pair5:36 slower -
Utrecht28 Nov 2025Doubles Open · Women1:47:34267/294Beat 9%
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Heerenveen9 May 2025Doubles Open · Women1:40:59263/292Beat 10%
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Amsterdam10 Oct 2024Doubles Open · Women1:37:07503/657Beat 23%
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Amsterdam4 Nov 2023Doubles Open · Women1:48:46294/319Beat 8%
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Amsterdam22 Oct 2022Relay · Mixed1:23:2916/20Beat 20%