Progress against the field
Koen Eijlders has gained 15:58 on the field from Amsterdam 2024 to Amsterdam 2026.
The clock says 24:18 faster, but the races themselves got 8:20 quicker for everyone.
The longest gap between two races compared here, 414 days between Amsterdam 2024 and Utrecht 2025, still ended 14:40 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.
Every race
5 races · 5 events
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Amsterdam21 Jan 2026Individual Open · Men1:50:22511/570Beat 10%
↑ 40 days after Gent 2025 6:51 worse than the field Why ↓Close ↑
6:51 behind the field: 3:50 slower on the clock, against 3:01 faster for everyone.
The fieldCompare these two →3:01 faster This athlete3:50 slower -
Gent12 Dec 2025Individual Open · Men1:46:32 PB1290/1428Beat 10%
↑ 14 days after Utrecht 2025 8:09 better than the field Why ↓Close ↑
8:09 better than the field: 12:39 faster on the clock, against 4:30 faster for everyone.
The fieldCompare these two →4:30 faster This athlete12:39 faster -
Utrecht28 Nov 2025Individual Open · Men1:59:11554/575Beat 4%
↑ 414 days after Amsterdam 2024 14:40 better than the field Why ↓Close ↑
14:40 better than the field: 15:29 faster on the clock, against 0:49 faster for everyone.
The fieldCompare these two →0:49 faster This athlete15:29 faster -
Rotterdam27 Feb 2025Doubles Open · Men1:33:53 PB696/733Beat 5%
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Amsterdam10 Oct 2024Individual Open · Men2:14:40649/659Beat 2%