Progress against the field
Between Heerenveen 2025 and Heerenveen 2026, Lonneke Rentinck and Sander van den Ouden pulled 6:57 ahead of the field.
Over the same races everyone got 5:27 quicker, so 12:24 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, still ended 4:05 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
4 races · 4 events
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Heerenveen14 May 2026Doubles Open · Mixed1:15:58 PB168/461Beat 64%
↑ 113 days after Amsterdam 2026, with Sander van den Ouden 2:52 better than the field Why ↓Close ↑
4:37 faster on the clock, and the race was 1:45 faster for everyone, so 2:52 of it was this pair.
The fieldCompare these two →1:45 faster This pair4:37 faster -
Rotterdam15 Apr 2026Individual Open · Women1:32:47 PB183/462Beat 60%
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Amsterdam21 Jan 2026Doubles Open · Mixed1:20:35226/496Beat 54%
↑ 257 days after Heerenveen 2025, with Sander van den Ouden 4:05 better than the field Why ↓Close ↑
7:47 faster on the clock, and the race was 3:42 faster for everyone, so 4:05 of it was this pair.
The fieldCompare these two →3:42 faster This pair7:47 faster -
Heerenveen9 May 2025Doubles Open · Mixed1:28:22360/492Beat 27%