Progress against the field
From Maastricht 2025 to Amsterdam 2026, Karien Olthof and Eefke de Haas have moved with the field: what changed on the clock changed for everyone.
The clock says 4:01 faster, but the races themselves got 3:50 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.
Every race
6 races · 6 events
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Gdansk10 Oct 2026Doubles Pro · Women1:27:0162/68Beat 9%
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Heerenveen14 May 2026Individual Open · Women1:31:07 PB171/427Beat 60%
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Amsterdam21 Jan 2026Doubles Open · Women1:18:21 PB79/297Beat 73%
↑ 124 days after Maastricht 2025, with Eefke de Haas 0:11 better than the field Why ↓Close ↑
0:11 better than the field: 4:01 faster on the clock, against 3:50 faster for everyone.
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%
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Rotterdam27 Feb 2025Doubles Open · Women1:22:1180/243Beat 67%