Progress against the field
Between Amsterdam 2024 and Heerenveen 2026, Jacco Peek kept pace with the field.
Over the same races everyone got 9:59 quicker, so 10:05 faster on the clock looks better than it was.
288 days between Rotterdam 2025 and Gent 2025 is the longest gap compared here, and the second race was 2:19 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
6 races · 6 events
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Heerenveen14 May 2026Individual Open · Men1:13:34199/966Beat 79%
↑ 113 days after Amsterdam 2026 3:00 worse than the field Why ↓Close ↑
3:00 behind the field: 0:27 slower on the clock, against 2:33 faster for everyone.
The fieldCompare these two →2:33 faster This athlete0:27 slower -
Amsterdam21 Jan 2026Individual Open · Men1:13:07 PB87/570Beat 85%
↑ 40 days after Gent 2025 0:59 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:02 faster on the clock looks better than it was: the race was 3:01 faster for everyone, which leaves this 0:59 behind the field.
The fieldCompare these two →3:01 faster This athlete2:02 faster -
Gent12 Dec 2025Individual Open · Men1:15:09313/1428Beat 78%
↑ 288 days after Rotterdam 2025 2:19 better than the field Why ↓Close ↑
4:48 faster on the clock, and the race was 2:29 faster for everyone, so 2:19 of it was this athlete.
The fieldCompare these two →2:29 faster This athlete4:48 faster -
Rotterdam27 Feb 2025Individual Open · Men1:19:57397/1283Beat 69%
↑ 140 days after Amsterdam 2024 1:46 better than the field Why ↓Close ↑
1:46 better than the field: 3:42 faster on the clock, against 1:56 faster for everyone.
The fieldCompare these two →1:56 faster This athlete3:42 faster -
Amsterdam10 Oct 2024Individual Open · Men1:23:39667/1539Beat 57%
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Rotterdam6 Apr 2024Doubles Open · Men1:17:50 PB374/722Beat 48%