Progress against the field
Between Rotterdam 2024 and Maastricht 2025, Jeroen Van Zanten kept pace with the field.
The clock says 9:17 faster, but the races themselves got 9:03 quicker for everyone.
The longest gap between two races compared here, 204 days between Rotterdam 2025 and Maastricht 2025, still ended 2:43 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
4 races · 4 events
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Maastricht19 Sep 2025Individual Open · Men1:03:21 PB11/1352Beat 99%
↑ 204 days after Rotterdam 2025 2:43 better than the field Why ↓Close ↑
3:03 faster on the clock, and the race was 0:20 faster for everyone, so 2:43 of it was this athlete.
The fieldCompare these two →0:20 faster This athlete3:03 faster -
Rotterdam27 Feb 2025Individual Open · Men1:06:2431/1283Beat 98%
↑ 140 days after Amsterdam 2024 1:33 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:23 faster on the clock looks better than it was: the race was 1:56 faster for everyone, which leaves this 1:33 behind the field.
The fieldCompare these two →1:56 faster This athlete0:23 faster -
Amsterdam10 Oct 2024Individual Open · Men1:06:4777/1539Beat 95%
↑ 187 days after Rotterdam 2024 0:56 worse than the field Faster on the clock, behind the field Why ↓Close ↑
5:51 faster on the clock, yet the race was 6:47 faster for everyone, so 0:56 was lost on the field.
The fieldCompare these two →6:47 faster This athlete5:51 faster -
Rotterdam6 Apr 2024Individual Open · Men1:12:3868/1380Beat 95%