Progress against the field
Between Maastricht 2025 and Maastricht 2026, Aron Jansen pulled 19:19 ahead of the field.
Over the same races everyone got 7:20 quicker, so 26:39 faster on the clock looks better than it was.
The longest gap between two races compared here, 208 days between Maastricht 2025 and Rotterdam 2026, still ended 16:32 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
3 races · 3 events
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Maastricht19 Sep 2026Individual Open · Men1:24:47 PB541/1119Beat 52%
↑ 157 days after Rotterdam 2026 2:47 better than the field Why ↓Close ↑
2:53 faster on the clock, and the race was 0:06 faster for everyone, so 2:47 of it was this athlete.
The fieldCompare these two →0:06 faster This athlete2:53 faster -
Rotterdam15 Apr 2026Individual Open · Men1:27:40289/570Beat 49%
↑ 208 days after Maastricht 2025 16:32 better than the field Why ↓Close ↑
16:32 better than the field: 23:46 faster on the clock, against 7:14 faster for everyone.
The fieldCompare these two →7:14 faster This athlete23:46 faster -
Maastricht19 Sep 2025Individual Open · Men1:51:261186/1352Beat 12%