Progress against the field
Between Rotterdam 2025 and Valencia 2025, Jeroen Wientjes pulled 3:36 ahead of the field.
Over the same races everyone got 3:27 quicker, so 7:03 faster on the clock looks better than it was.
The largest gain on the field came from Heerenveen 2025 → Valencia 2025: 11:28 in 161 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
10 races · 7 events
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Heerenveen14 May 2026Doubles Open · Men1:03:40 PB51/434Beat 88%
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Heerenveen14 May 2026Doubles Pro · Men1:04:37 PB96/315Beat 70%
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Amsterdam21 Jan 2026Individual Pro · Men1:14:50 PB107/243Beat 56%
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Gent12 Dec 2025Doubles Open · Men1:06:28222/1164Beat 81%
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Gent12 Dec 2025Individual Open · Men1:07:5495/1428Beat 93%
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Valencia17 Oct 2025Individual Open · Men1:07:32 PB73/1018Beat 93%
↑ 161 days after Heerenveen 2025 11:28 better than the field Why ↓Close ↑
11:28 better than the field: 12:26 faster on the clock, against 0:58 faster for everyone.
The fieldCompare these two →0:58 faster This athlete12:26 faster -
Maastricht19 Sep 2025Doubles Open · Men1:05:23135/821Beat 84%
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Maastricht19 Sep 2025Doubles Open · Mixed1:12:35 PB78/658Beat 88%
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Heerenveen9 May 2025Individual Open · Men1:19:58408/1217Beat 67%
↑ 71 days after Rotterdam 2025 7:52 worse than the field Why ↓Close ↑
7:52 behind the field: 5:23 slower on the clock, against 2:29 faster for everyone.
The fieldCompare these two →2:29 faster This athlete5:23 slower -
Rotterdam27 Feb 2025Individual Open · Men1:14:35188/1283Beat 85%