Progress against the field
From Rotterdam 2025 to Rotterdam 2026, the field gained 24:07 on Lisa marie de Leeuw.
The clock says 18:51 slower, but the races themselves got 5:16 quicker for everyone.
The longest gap between two races compared here, 208 days between Maastricht 2025 and Rotterdam 2026, cost 13:04 on the field.
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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Rotterdam15 Apr 2026Individual Open · Women1:55:06591/695Beat 15%
↑ 208 days after Maastricht 2025 13:04 worse than the field Why ↓Close ↑
8:42 slower on the clock in a race that was 4:22 faster for everyone: 13:04 lost to the field.
The fieldCompare these two →4:22 faster This athlete8:42 slower -
Amsterdam21 Jan 2026Doubles Open · Women1:35:46 PB873/1030Beat 15%
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Maastricht19 Sep 2025Individual Open · Women1:46:24236/348Beat 32%
↑ 204 days after Rotterdam 2025 11:03 worse than the field Why ↓Close ↑
11:03 behind the field: 10:09 slower on the clock, against 0:54 faster for everyone.
The fieldCompare these two →0:54 faster This athlete10:09 slower -
Heerenveen9 May 2025Doubles Pro · Women1:32:14 PB62/69Beat 10%
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Rotterdam27 Feb 2025Individual Open · Women1:36:15 PB275/506Beat 46%