Progress against the field
Between Amsterdam 2026 and Maastricht 2026, Tess Vermeulen lost 1:21 to the field.
Over the same races everyone got 1:19 quicker, so 0:02 slower on the clock looks better than it was.
The largest gain on the field came from Rotterdam 2026 → Heerenveen 2026: 4:39 in 29 days.
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 Pro · Women, the one raced most; every comparison is in the list below.
Every race
10 races · 8 events
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Geneva9 Oct 2026Relay · Mixed53:522/76Beat 97%
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Maastricht19 Sep 2026Doubles Pro · Women1:04:32 PB17/204Beat 92%
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Maastricht19 Sep 2026Individual Pro · Women1:24:3361/160Beat 62%
↑ 128 days after Heerenveen 2026 6:00 worse than the field Why ↓Close ↑
6:50 slower on the clock in a race that was 0:50 slower for everyone: 6:00 lost to the field.
The fieldCompare these two →0:50 slower This athlete6:50 slower -
Heerenveen14 May 2026Individual Pro · Women1:17:43 PB40/155Beat 74%
↑ 29 days after Rotterdam 2026 4:39 better than the field Why ↓Close ↑
4:39 better than the field: 6:38 faster on the clock, against 1:59 faster for everyone.
The fieldCompare these two →1:59 faster This athlete6:38 faster -
Rotterdam15 Apr 2026Relay · Women1:09:5813/84Beat 85%
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Rotterdam15 Apr 2026Individual Pro · Women1:24:2159/128Beat 54%
↑ 84 days after Amsterdam 2026 0:00 better than the field Why ↓Close ↑
0:10 faster on the clock, and the race was 0:10 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →0:10 faster This athlete0:10 faster -
Amsterdam21 Jan 2026Individual Pro · Women1:24:3172/128Beat 44%
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Gent12 Dec 2025Individual Open · Women1:20:07 PB155/1009Beat 85%
↑ 288 days after Rotterdam 2025 12:01 better than the field Why ↓Close ↑
14:46 faster on the clock, and the race was 2:45 faster for everyone, so 12:01 of it was this athlete.
The fieldCompare these two →2:45 faster This athlete14:46 faster -
Utrecht28 Nov 2025Doubles Open · Mixed1:25:41 PB197/381Beat 48%
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Rotterdam27 Feb 2025Individual Open · Women1:34:53255/506Beat 50%