Progress against the field
Ben Oosterkerk has dropped 1:56 behind the field from Amsterdam 2022 to Amsterdam 2026.
Over the same races everyone got 9:21 quicker, so 7:25 faster on the clock looks better than it was.
The longest gap between two races compared here, 809 days between Amsterdam 2023 and Amsterdam 2026, still ended 1:23 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. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
5 races · 5 events
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Amsterdam21 Jan 2026Individual Open · Men1:19:52 PB620/1620Beat 62%
↑ 809 days after Amsterdam 2023 1:23 better than the field Why ↓Close ↑
8:28 faster on the clock, and the race was 7:05 faster for everyone, so 1:23 of it was this athlete.
The fieldCompare these two →7:05 faster This athlete8:28 faster -
Gent12 Dec 2025Doubles Open · Mixed1:17:43326/863Beat 62%
↑ 217 days after Heerenveen 2025, with Dagmar Manuhuwa 2:37 worse than the field Why ↓Close ↑
2:37 behind the field: 2:08 slower on the clock, against 0:29 faster for everyone.
The fieldCompare these two →0:29 faster This pair2:08 slower -
Heerenveen9 May 2025Doubles Open · Mixed1:15:35 PB118/492Beat 76%
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Amsterdam4 Nov 2023Individual Open · Men1:28:20506/1079Beat 53%
↑ 378 days after Amsterdam 2022 3:19 worse than the field Why ↓Close ↑
1:03 slower on the clock in a race that was 2:16 faster for everyone: 3:19 lost to the field.
The fieldCompare these two →2:16 faster This athlete1:03 slower -
Amsterdam22 Oct 2022Individual Open · Men1:27:17268/561Beat 52%