Progress against the field
From Heerenveen 2025 to Rotterdam 2026, the field gained 1:35 on Marrit Speerstra and Jildou Speerstra.
The clock says 2:20 faster, but the races themselves got 3:55 quicker for everyone.
257 days between Heerenveen 2025 and Amsterdam 2026 is the longest gap compared here, and the second race was 2:30 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
3 races · 3 events
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Rotterdam15 Apr 2026Doubles Open · Women1:18:07 PB81/466Beat 83%
↑ 84 days after Amsterdam 2026, with Jildou Speerstra 0:55 better than the field Why ↓Close ↑
1:55 faster on the clock, and the race was 1:00 faster for everyone, so 0:55 of it was this pair.
The fieldCompare these two →1:00 faster This pair1:55 faster -
Amsterdam21 Jan 2026Doubles Open · Women1:20:0274/307Beat 76%
↑ 257 days after Heerenveen 2025, with Jildou Speerstra 2:30 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:25 faster on the clock looks better than it was: the race was 2:55 faster for everyone, which leaves this 2:30 behind the field.
The fieldCompare these two →2:55 faster This pair0:25 faster -
Heerenveen9 May 2025Doubles Open · Women1:20:27108/566Beat 81%