Progress against the field
From Heerenveen 2025 to Maastricht 2026, Wieland Disseldorp got 5:48 faster than the field.
Over the same races everyone got 3:43 quicker, so 9:31 faster on the clock looks better than it was.
The longest gap between two races compared here, 203 days between Heerenveen 2025 and Utrecht 2025, still ended 6:35 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 · 4 events
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Maastricht19 Sep 2026Individual Pro · Men1:09:48 PB102/399Beat 74%
↑ 128 days after Heerenveen 2026 4:18 better than the field Why ↓Close ↑
2:54 faster on the clock in a race that was 1:24 slower for everyone: 4:18 better than the field.
The fieldCompare these two →1:24 slower This athlete2:54 faster -
Heerenveen14 May 2026Doubles Pro · Men59:48 PB52/315Beat 84%
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Heerenveen14 May 2026Individual Pro · Men1:12:42142/454Beat 69%
↑ 167 days after Utrecht 2025 5:05 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:38 faster on the clock, yet the race was 6:43 faster for everyone, so 5:05 was lost on the field.
The fieldCompare these two →6:43 faster This athlete1:38 faster -
Utrecht28 Nov 2025Individual Pro · Men1:14:2046/215Beat 79%
↑ 203 days after Heerenveen 2025 6:35 better than the field Why ↓Close ↑
The race was 1:36 slower for everyone and the clock still says 4:59 faster: 6:35 gained on the field.
The fieldCompare these two →1:36 slower This athlete4:59 faster -
Heerenveen9 May 2025Individual Pro · Men1:19:1990/216Beat 58%