Progress against the field
Between Rotterdam 2024 and Rotterdam 2026, Wesley Hartman pulled 19:21 ahead of the field.
The clock says 32:03 faster, but the races themselves got 12:42 quicker for everyone.
The longest gap between two races compared here, 364 days between Rotterdam 2024 and Belgium 2025, still ended 17:38 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 · 5 events
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Rotterdam15 Apr 2026Individual Open · Men1:25:54 PB580/1192Beat 51%
↑ 138 days after Utrecht 2025 2:34 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:45 faster on the clock, yet the race was 5:19 faster for everyone, so 2:34 was lost on the field.
The fieldCompare these two →5:19 faster This athlete2:45 faster -
Amsterdam21 Jan 2026Doubles Open · Men1:06:54 PB247/994Beat 75%
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Utrecht28 Nov 2025Individual Open · Men1:28:39677/1337Beat 49%
↑ 237 days after Belgium 2025 4:17 better than the field Why ↓Close ↑
4:40 faster on the clock, and the race was 0:23 faster for everyone, so 4:17 of it was this athlete.
The fieldCompare these two →0:23 faster This athlete4:40 faster -
Belgium5 Apr 2025Individual Open · Men1:33:191120/1638Beat 32%
↑ 364 days after Rotterdam 2024 17:38 better than the field Why ↓Close ↑
24:38 faster on the clock, and the race was 7:00 faster for everyone, so 17:38 of it was this athlete.
The fieldCompare these two →7:00 faster This athlete24:38 faster -
Rotterdam6 Apr 2024Individual Open · Men1:57:571273/1380Beat 8%