Progress against the field
From Maastricht 2025 to Amsterdam 2026, Eefke de Haas and Karien Olthof have moved with the field: what changed on the clock changed for everyone.
Over the same races everyone got 3:50 quicker, so 4:01 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.
Every race
5 races · 5 events
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Gdansk10 Oct 2026Doubles Pro · Women1:27:0162/68Beat 9%
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Heerenveen14 May 2026Individual Open · Women1:43:11 PB302/427Beat 29%
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Amsterdam21 Jan 2026Doubles Open · Women1:18:21 PB79/297Beat 73%
↑ 124 days after Maastricht 2025, with Karien Olthof 0:11 better than the field Why ↓Close ↑
4:01 faster on the clock, and the race was 3:50 faster for everyone, so 0:11 of it was this pair.
The fieldCompare these two →3:50 faster This pair4:01 faster -
London Excel4 Dec 2025Doubles Pro · Women1:24:41 PB241/339Beat 29%
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Maastricht19 Sep 2025Doubles Open · Women1:22:22284/739Beat 62%