Progress against the field
Marc Kroes has dropped 3:05 behind the field from Heerenveen 2025 to Stockholm 2026.
Over the same races everyone got 1:35 quicker, so 1:30 slower on the clock looks better than it was.
The longest gap between two races compared here, 341 days between Heerenveen 2025 and Rotterdam 2026, cost 3:36 on 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. The summary above covers Individual Pro · Men, the one raced most; every comparison is in the list below.
Every race
8 races · 8 events
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Stockholm18 Jun 2026Individual Pro · Men1:07:36373/767Beat 51%
↑ 64 days after Rotterdam 2026 0:31 better than the field Slower on the clock, ahead of the field Why ↓Close ↑
0:47 slower on the clock in a race that was 1:18 slower for everyone: 0:31 gained on the field, which the clock hides.
The fieldCompare these two →1:18 slower This athlete0:47 slower -
Heerenveen14 May 2026Doubles Pro · Men56:39 PB20/315Beat 94%
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Rotterdam15 Apr 2026Individual Pro · Men1:06:4938/348Beat 89%
↑ 341 days after Heerenveen 2025 3:36 worse than the field Why ↓Close ↑
3:36 behind the field: 0:43 slower on the clock, against 2:53 faster for everyone.
The fieldCompare these two →2:53 faster This athlete0:43 slower -
Heerenveen9 May 2025Individual Pro · Men1:06:06 PB11/216Beat 95%
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Rotterdam27 Feb 2025Individual Open · Men1:02:277/1283Beat 100%
↑ 140 days after Amsterdam 2024 3:47 worse than the field Why ↓Close ↑
3:47 behind the field: 1:51 slower on the clock, against 1:56 faster for everyone.
The fieldCompare these two →1:56 faster This athlete1:51 slower -
Amsterdam10 Oct 2024Individual Open · Men1:00:36 PB14/1539Beat 99%
↑ 341 days after Amsterdam 2023 1:53 worse than the field Faster on the clock, behind the field Why ↓Close ↑
4:36 faster on the clock looks better than it was: the race was 6:29 faster for everyone, which leaves this 1:53 behind the field.
The fieldCompare these two →6:29 faster This athlete4:36 faster -
Amsterdam4 Nov 2023Individual Open · Men1:05:1213/1079Beat 99%
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World Championships NiceDate unknownIndividual Pro · Men1:06:40136/830Beat 84%