Progress against the field
Between Marseille 2024 and Paris 2025, Karl Belli pulled 25:22 ahead of the field.
The races themselves barely changed, so 25:50 faster on the clock is the real picture.
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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Paris GP23 Apr 2026Doubles Open · Men1:19:32 PB595/821Beat 28%
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Paris22 Oct 2025Individual Open · Men1:38:12 PB1038/1347Beat 23%
↑ 319 days after Marseille 2024 25:22 better than the field Why ↓Close ↑
25:50 faster on the clock, and the race was 0:28 faster for everyone, so 25:22 of it was this athlete.
The fieldCompare these two →0:28 faster This athlete25:50 faster -
Marseille7 Dec 2024Individual Open · Men2:04:021440/1477Beat 3%