Progress against the field
Wessel Van Der Kolk has dropped 4:12 behind the field from Amsterdam 2024 to Amsterdam 2026.
Over the same races everyone got 5:56 quicker, so 1:44 faster on the clock looks better than it was.
414 days between Amsterdam 2024 and Utrecht 2025 is the longest gap compared here, and the second race was 2:28 behind 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 Open · Men1:02:09 PB8/608Beat 99%
↑ 54 days after Utrecht 2025 1:44 worse than the field Faster on the clock, behind the field Why ↓Close ↑
3:23 faster on the clock, yet the race was 5:07 faster for everyone, so 1:44 was lost on the field.
The fieldCompare these two →5:07 faster This athlete3:23 faster -
Utrecht28 Nov 2025Individual Open · Men1:05:3217/1337Beat 99%
↑ 414 days after Amsterdam 2024 2:28 worse than the field Why ↓Close ↑
2:28 behind the field: 1:39 slower on the clock, against 0:49 faster for everyone.
The fieldCompare these two →0:49 faster This athlete1:39 slower -
Amsterdam10 Oct 2024Individual Open · Men1:03:5340/1539Beat 97%