Progress against the field
From Heerenveen 2025 to Amsterdam 2026, Caroline Vlietstra and Wieke De Jager have moved with the field: what changed on the clock changed for everyone.
The clock says 5:38 faster, but the races themselves got 5:44 quicker for everyone.
The longest gap between two races compared here, 203 days between Heerenveen 2025 and Utrecht 2025, still ended 8:06 ahead of 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
3 races · 3 events
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Amsterdam21 Jan 2026Doubles Open · Women1:27:23163/307Beat 47%
↑ 54 days after Utrecht 2025, with Wieke De Jager 8:12 worse than the field Why ↓Close ↑
3:40 slower on the clock in a race that was 4:32 faster for everyone: 8:12 lost to the field.
The fieldCompare these two →4:32 faster This pair3:40 slower -
Utrecht28 Nov 2025Doubles Open · Women1:23:43 PB298/828Beat 64%
↑ 203 days after Heerenveen 2025, with Wieke De Jager 8:06 better than the field Why ↓Close ↑
8:06 better than the field: 9:18 faster on the clock, against 1:12 faster for everyone.
The fieldCompare these two →1:12 faster This pair9:18 faster -
Heerenveen9 May 2025Doubles Open · Women1:33:01369/566Beat 35%