Progress against the field
Between Heerenveen 2025 and Amsterdam 2026, Ilona Stouwdam-Zoer and Sanne van der Zanden pulled 0:40 ahead of the field.
Over the same races everyone got 2:55 quicker, so 3:35 faster on the clock looks better than it was.
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
2 races · 2 events
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Amsterdam21 Jan 2026Doubles Open · Women1:15:02 PB152/1030Beat 85%
↑ 257 days after Heerenveen 2025, with Sanne van der Zanden 0:40 better than the field Why ↓Close ↑
3:35 faster on the clock, and the race was 2:55 faster for everyone, so 0:40 of it was this pair.
The fieldCompare these two →2:55 faster This pair3:35 faster -
Heerenveen9 May 2025Doubles Open · Women1:18:3772/566Beat 87%