Progress against the field
Between Utrecht 2025 and Heerenveen 2026, Thom Dunki Jacobs and corne Ouwehand pulled 4:49 ahead of the field.
Over the same races everyone got 4:57 quicker, so 9:46 faster on the clock looks better than it was.
The biggest step was Utrecht 2025 → Amsterdam 2026: 9:07 on the field in 54 days.
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 · Men1:20:38358/535Beat 33%
↑ 113 days after Amsterdam 2026, with corne Ouwehand 4:18 worse than the field Why ↓Close ↑
2:51 slower on the clock in a race that was 1:27 faster for everyone: 4:18 lost to the field.
The fieldCompare these two →1:27 faster This pair2:51 slower -
Amsterdam21 Jan 2026Doubles Open · Men1:17:47 PB712/994Beat 28%
↑ 54 days after Utrecht 2025, with corne Ouwehand 9:07 better than the field Why ↓Close ↑
12:37 faster on the clock, and the race was 3:30 faster for everyone, so 9:07 of it was this pair.
The fieldCompare these two →3:30 faster This pair12:37 faster -
Utrecht28 Nov 2025Doubles Open · Men1:30:24378/461Beat 18%