Progress against the field
From Rotterdam 2025 to Rotterdam 2026, the field gained 5:44 on Vera Ammerlaan.
Over the same races everyone got 4:45 quicker, so 0:59 slower on the clock looks better than it was.
The longest gap between two races compared here, 274 days between Rotterdam 2025 and Utrecht 2025, cost 7:34 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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Maastricht19 Sep 2026Doubles Pro · Women1:05:20 PB19/204Beat 91%
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Rotterdam15 Apr 2026Individual Open · Women1:08:265/695Beat 99%
↑ 138 days after Utrecht 2025 1:50 better than the field Why ↓Close ↑
1:50 better than the field: 4:42 faster on the clock, against 2:52 faster for everyone.
The fieldCompare these two →2:52 faster This athlete4:42 faster -
Utrecht28 Nov 2025Individual Open · Women1:13:0816/619Beat 97%
↑ 274 days after Rotterdam 2025 7:34 worse than the field Why ↓Close ↑
5:41 slower on the clock in a race that was 1:53 faster for everyone: 7:34 lost to the field.
The fieldCompare these two →1:53 faster This athlete5:41 slower -
Rotterdam27 Feb 2025Individual Open · Women1:07:27 PB3/411Beat 99%
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Amsterdam10 Oct 2024Doubles Open · Mixed1:04:50 PB27/618Beat 96%