Progress against the field
Chantal ter Horst has dropped 10:06 behind the field from Rotterdam 2024 to Rotterdam 2026.
The clock says 9:17 slower, but the races themselves got 0:49 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. The summary above covers Individual Open · Women, the one raced most; every comparison is in the list below.
Every race
5 races · 5 events
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Rotterdam15 Apr 2026Individual Open · Women1:44:59502/695Beat 28%
↑ 739 days after Rotterdam 2024 10:06 worse than the field Why ↓Close ↑
10:06 behind the field: 9:17 slower on the clock, against 0:49 faster for everyone.
The fieldCompare these two →0:49 faster This athlete9:17 slower -
Heerenveen9 May 2025Doubles Open · Mixed1:26:34 PB328/492Beat 33%
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Rotterdam6 Apr 2024Individual Open · Women1:35:42 PB324/585Beat 45%
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Amsterdam4 Nov 2023Doubles Open · Women1:28:46179/319Beat 44%
↑ 168 days after Rotterdam 2023, with Lyan Te Nijenhuis 3:07 worse than the field Why ↓Close ↑
1:07 slower on the clock in a race that was 2:00 faster for everyone: 3:07 lost to the field.
The fieldCompare these two →2:00 faster This pair1:07 slower -
Rotterdam20 May 2023Doubles Open · Women1:27:39 PB101/222Beat 55%