Progress against the field
Between Rimini 2024 and Amsterdam 2026, Casper Koopman pulled 6:20 ahead of the field.
Over the same races everyone got 9:52 quicker, so 16:12 faster on the clock looks better than it was.
551 days between Rimini 2024 and London Excel 2025 is the longest gap compared here, and the second race was 4:24 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
8 races · 8 events
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Mechelen26 Mar 2026Doubles Open · MenDNF—
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Amsterdam21 Jan 2026Individual Open · Men1:08:42 PB50/570Beat 91%
↑ 48 days after London Excel 2025 1:56 better than the field Why ↓Close ↑
1:56 better than the field: 2:10 faster on the clock, against 0:14 faster for everyone.
The fieldCompare these two →0:14 faster This athlete2:10 faster -
London Excel4 Dec 2025Individual Open · Men1:10:52426/2771Beat 85%
↑ 551 days after Rimini 2024 4:24 better than the field Why ↓Close ↑
14:02 faster on the clock, and the race was 9:38 faster for everyone, so 4:24 of it was this athlete.
The fieldCompare these two →9:38 faster This athlete14:02 faster -
Maastricht19 Sep 2025Doubles Open · Men1:07:12 PB189/821Beat 77%
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Heerenveen9 May 2025Individual Pro · MenDNF—
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Rotterdam27 Feb 2025Individual Pro · Men1:23:31 PB49/99Beat 51%
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Rimini1 Jun 2024Individual Open · Men1:24:54447/1156Beat 61%
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Rotterdam20 May 2023Individual Open · Men1:23:44203/575Beat 65%