Progress against the field
Between Amsterdam 2024 and Amsterdam 2026, Koen Leemreis pulled 6:18 ahead of the field.
Over the same races everyone got 9:48 quicker, so 16:06 faster on the clock looks better than it was.
The longest gap between two races compared here, 257 days between Heerenveen 2025 and Amsterdam 2026, still ended 21:41 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
3 races · 3 events
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Amsterdam21 Jan 2026Individual Pro · Men1:22:05 PB68/107Beat 36%
↑ 257 days after Heerenveen 2025 21:41 better than the field Why ↓Close ↑
21:41 better than the field: 26:53 faster on the clock, against 5:12 faster for everyone.
The fieldCompare these two →5:12 faster This athlete26:53 faster -
Heerenveen9 May 2025Individual Pro · Men1:48:58209/216Beat 3%
↑ 211 days after Amsterdam 2024 15:23 worse than the field Why ↓Close ↑
15:23 behind the field: 10:47 slower on the clock, against 4:36 faster for everyone.
The fieldCompare these two →4:36 faster This athlete10:47 slower -
Amsterdam10 Oct 2024Individual Pro · Men1:38:11125/147Beat 15%