Progress against the field
Between Belgium 2025 and Amsterdam 2026, Jelmer Hofstra and Marvin Doeven lost 10:54 to the field.
Over the same races everyone got 2:14 quicker, so 8:40 slower 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. The summary above covers Doubles Open · Men, with Marvin Doeven, the one raced most; every comparison is in the list below.
Every race
4 races · 4 events
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Amsterdam21 Jan 2026Doubles Open · Men1:27:36900/994Beat 10%
↑ 291 days after Belgium 2025, with Marvin Doeven 10:54 worse than the field Why ↓Close ↑
10:54 behind the field: 8:40 slower on the clock, against 2:14 faster for everyone.
The fieldCompare these two →2:14 faster This pair8:40 slower -
Belgium5 Apr 2025Doubles Open · Men1:18:56 PB623/898Beat 31%
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Amsterdam4 Nov 2023Doubles Open · Men1:31:36346/411Beat 16%
↑ 168 days after Rotterdam 2023, with Douwe Beunk 3:27 better than the field Why ↓Close ↑
4:53 faster on the clock, and the race was 1:26 faster for everyone, so 3:27 of it was this pair.
The fieldCompare these two →1:26 faster This pair4:53 faster -
Rotterdam20 May 2023Doubles Open · Men1:36:29222/249Beat 11%