Progress against the field
Between Paris 2025 and Rome 2026, Mike Costil lost 0:56 to the field.
Over the same races everyone got 7:44 quicker, so 6:48 faster on the clock looks better than it was.
The longest gap between two races compared here, 183 days between Paris 2025 and Paris GP 2026, cost 9:15 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.
Every race
3 races · 3 events
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Rome23 Sep 2026Individual Open · Men1:34:59 PB401/535Beat 25%
↑ 153 days after Paris GP 2026 8:19 better than the field Why ↓Close ↑
8:55 faster on the clock, and the race was 0:36 faster for everyone, so 8:19 of it was this athlete.
The fieldCompare these two →0:36 faster This athlete8:55 faster -
Paris GP23 Apr 2026Individual Open · Men1:43:541042/1236Beat 16%
↑ 183 days after Paris 2025 9:15 worse than the field Why ↓Close ↑
2:07 slower on the clock in a race that was 7:08 faster for everyone: 9:15 lost to the field.
The fieldCompare these two →7:08 faster This athlete2:07 slower -
Paris22 Oct 2025Individual Open · Men1:41:47458/587Beat 22%