Progress against the field
From Heerenveen 2025 to Heerenveen 2026, Mariette Zoer got 2:25 faster than the field.
Over the same races everyone got 6:07 quicker, so 8:32 faster on the clock looks better than it was.
The longest gap between two races compared here, 257 days between Heerenveen 2025 and Amsterdam 2026, cost 3:14 on 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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Heerenveen14 May 2026Individual Open · Women1:26:39 PB67/205Beat 67%
↑ 113 days after Amsterdam 2026 5:39 better than the field Why ↓Close ↑
5:39 better than the field: 6:58 faster on the clock, against 1:19 faster for everyone.
The fieldCompare these two →1:19 faster This athlete6:58 faster -
Amsterdam21 Jan 2026Individual Open · Women1:33:37615/1122Beat 45%
↑ 257 days after Heerenveen 2025 3:14 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:34 faster on the clock looks better than it was: the race was 4:48 faster for everyone, which leaves this 3:14 behind the field.
The fieldCompare these two →4:48 faster This athlete1:34 faster -
Heerenveen9 May 2025Individual Open · Women1:35:11105/183Beat 43%