Progress against the field
Jack Butterworth has gained 9:13 on the field from Copenhagen 2025 to London Olympia 2026.
Over the same races everyone got 4:43 quicker, so 13:56 faster on the clock looks better than it was.
265 days between Copenhagen 2025 and London Excel 2025 is the longest gap compared here, and the second race was 6:24 better than 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
-
London Olympia24 Mar 2026Individual Open · Men1:10:42 PB115/897Beat 87%
↑ 110 days after London Excel 2025 2:49 better than the field Why ↓Close ↑
4:43 faster on the clock, and the race was 1:54 faster for everyone, so 2:49 of it was this athlete.
The fieldCompare these two →1:54 faster This athlete4:43 faster -
London Excel4 Dec 2025Individual Open · Men1:15:25752/2771Beat 73%
↑ 265 days after Copenhagen 2025 6:24 better than the field Why ↓Close ↑
9:13 faster on the clock, and the race was 2:49 faster for everyone, so 6:24 of it was this athlete.
The fieldCompare these two →2:49 faster This athlete9:13 faster -
Copenhagen14 Mar 2025Individual Open · Men1:24:38735/1323Beat 44%