Progress against the field
Jannemieke Klootwijk and Bianca Van Karsen have dropped 17:37 behind the field from Maastricht 2024 to Rotterdam 2026.
Over the same races everyone got 3:00 quicker, so 14:37 slower on the clock looks better than it was.
739 days between Rotterdam 2024 and Rotterdam 2026 is the longest gap compared here, and the second race was 18:04 behind 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
4 races · 4 events
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Rotterdam15 Apr 2026Doubles Open · Women1:54:11916/936Beat 2%
↑ 739 days after Rotterdam 2024, with Bianca Van Karsen 18:04 worse than the field Why ↓Close ↑
18:04 behind the field: 14:31 slower on the clock, against 3:33 faster for everyone.
The fieldCompare these two →3:33 faster This pair14:31 slower -
Gent12 Dec 2025Doubles Open · Mixed1:38:50 PB792/863Beat 8%
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Rotterdam6 Apr 2024Doubles Open · Women1:39:40435/564Beat 23%
↑ 77 days after Maastricht 2024, with Bianca Van Karsen 0:27 better than the field Slower on the clock, ahead of the field Why ↓Close ↑
0:06 slower on the clock in a race that was 0:33 slower for everyone: 0:27 gained on the field, which the clock hides.
The fieldCompare these two →0:33 slower This pair0:06 slower -
Maastricht20 Jan 2024Doubles Open · Women1:39:34 PB188/219Beat 14%