Progress against the field
Sander van den Ouden and Lonneke Rentinck have gained 6:57 on the field from Heerenveen 2025 to Heerenveen 2026.
Over the same races everyone got 5:27 quicker, so 12:24 faster on the clock looks better than it was.
257 days between Heerenveen 2025 and Amsterdam 2026 is the longest gap compared here, and the second race was 4:05 better than 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 2026Doubles Open · Mixed1:15:58 PB168/461Beat 64%
↑ 113 days after Amsterdam 2026, with Lonneke Rentinck 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 -
Amsterdam21 Jan 2026Doubles Open · Mixed1:20:35226/496Beat 54%
↑ 257 days after Heerenveen 2025, with Lonneke Rentinck 4:05 better than the field Why ↓Close ↑
4:05 better than the field: 7:47 faster on the clock, against 3:42 faster for everyone.
The fieldCompare these two →3:42 faster This pair7:47 faster -
Heerenveen9 May 2025Doubles Open · Mixed1:28:22360/492Beat 27%