Progress against the field
Jesper van Sloten has dropped 13:38 behind the field from Utrecht 2025 to Heerenveen 2026.
Over the same races everyone got 7:40 quicker, so 5:58 slower on the clock looks better than it was.
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
4 races · 4 events
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Heerenveen14 May 2026Individual Open · Men1:40:36811/966Beat 16%
↑ 113 days after Amsterdam 2026 2:03 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:30 faster on the clock, yet the race was 2:33 faster for everyone, so 2:03 was lost on the field.
The fieldCompare these two →2:33 faster This athlete0:30 faster -
Amsterdam21 Jan 2026Individual Open · Men1:41:061397/1620Beat 14%
↑ 54 days after Utrecht 2025 11:35 worse than the field Why ↓Close ↑
6:28 slower on the clock in a race that was 5:07 faster for everyone: 11:35 lost to the field.
The fieldCompare these two →5:07 faster This athlete6:28 slower -
Utrecht28 Nov 2025Individual Open · Men1:34:38 PB880/1337Beat 34%
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Dublin12 Nov 2025Doubles Open · Men1:08:13 PB242/777Beat 69%