Progress against the field
Between Amsterdam 2026 and Mechelen 2026, Lieske van der Heijden pulled 2:48 ahead of the field.
Over the same races everyone got 1:18 quicker, so 4:06 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 Individual Open · Women, the one raced most; every comparison is in the list below.
Every race
9 races · 8 events
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Valencia17 Oct 2026Doubles Open · Women1:08:14 PB7/168Beat 96%
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Berlin22 May 2026Doubles Open · Women1:17:01100/847Beat 88%
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Heerenveen14 May 2026Doubles Pro · Women1:11:59 PB71/231Beat 69%
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Rotterdam15 Apr 2026Doubles Open · Women1:23:34379/936Beat 60%
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Mechelen26 Mar 2026Individual Open · Women1:27:05 PB239/776Beat 69%
↑ 64 days after Amsterdam 2026 2:48 better than the field Why ↓Close ↑
2:48 better than the field: 4:06 faster on the clock, against 1:18 faster for everyone.
The fieldCompare these two →1:18 faster This athlete4:06 faster -
Amsterdam21 Jan 2026Individual Open · Women1:31:11537/1122Beat 52%
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Maastricht19 Sep 2025Doubles Open · Women1:21:20253/739Beat 66%
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Maastricht19 Sep 2025Doubles Open · Women1:15:2740/329Beat 88%
↑ 204 days after Rotterdam 2025, with Iris van der Palen 4:25 better than the field Why ↓Close ↑
4:25 better than the field: 6:31 faster on the clock, against 2:06 faster for everyone.
The fieldCompare these two →2:06 faster This pair6:31 faster -
Rotterdam27 Feb 2025Doubles Open · Women1:21:5879/243Beat 68%