Progress against the field
Between Rotterdam 2024 and Rotterdam 2025, Cora Aalberts and Richard Knol pulled 0:37 ahead of the field.
The clock says 5:04 faster, but the races themselves got 4:27 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
4 races · 4 events
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Rotterdam15 Apr 2026Doubles Open · Mixed1:14:20 PB104/560Beat 81%
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Rotterdam27 Feb 2025Doubles Open · Mixed1:20:53146/353Beat 59%
↑ 327 days after Rotterdam 2024, with Richard Knol 0:37 better than the field Why ↓Close ↑
0:37 better than the field: 5:04 faster on the clock, against 4:27 faster for everyone.
The fieldCompare these two →4:27 faster This pair5:04 faster -
Rotterdam6 Apr 2024Doubles Open · Mixed1:25:57339/534Beat 37%
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Amsterdam22 Oct 2022Doubles Open · Mixed1:29:12129/170Beat 24%