Progress against the field
Between Rotterdam 2023 and Heerenveen 2026, Jeroen Hopman lost 54:32 to the field.
The clock says 40:03 slower, but the races themselves got 14:29 quicker for everyone.
481 days between Amsterdam 2023 and Rotterdam 2025 is the longest gap compared here, and the second race was 23:01 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
5 races · 5 events
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Heerenveen14 May 2026Individual Open · Men2:16:52314/315Beat 0%
↑ 113 days after Amsterdam 2026 42:00 worse than the field Why ↓Close ↑
42:00 behind the field: 39:27 slower on the clock, against 2:33 faster for everyone.
The fieldCompare these two →2:33 faster This athlete39:27 slower -
Amsterdam21 Jan 2026Individual Open · Men1:37:25490/608Beat 19%
↑ 328 days after Rotterdam 2025 1:16 better than the field Why ↓Close ↑
5:39 faster on the clock, and the race was 4:23 faster for everyone, so 1:16 of it was this athlete.
The fieldCompare these two →4:23 faster This athlete5:39 faster -
Rotterdam27 Feb 2025Individual Open · Men1:43:04521/600Beat 13%
↑ 481 days after Amsterdam 2023 23:01 better than the field Why ↓Close ↑
27:57 faster on the clock, and the race was 4:56 faster for everyone, so 23:01 of it was this athlete.
The fieldCompare these two →4:56 faster This athlete27:57 faster -
Amsterdam4 Nov 2023Individual Open · Men2:11:011060/1079Beat 2%
↑ 168 days after Rotterdam 2023 36:49 worse than the field Why ↓Close ↑
36:49 behind the field: 34:12 slower on the clock, against 2:37 faster for everyone.
The fieldCompare these two →2:37 faster This athlete34:12 slower -
Rotterdam20 May 2023Individual Open · Men1:36:49 PB394/575Beat 32%