Progress against the field
Between London Olympia 2026 and Birmingham 2026, Jo Jenkins pulled 3:38 ahead of the field.
The clock says 6:49 faster, but the races themselves got 3:11 quicker for everyone.
The largest gain on the field came from London Olympia 2026 → Cardiff 2026: 4:01 in 36 days.
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
4 races · 4 events
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Birmingham31 Oct 2026Individual Open · Women1:36:45 PB312/547Beat 43%
↑ 185 days after Cardiff 2026 0:23 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:20 faster on the clock, yet the race was 2:43 faster for everyone, so 0:23 was lost on the field.
The fieldCompare these two →2:43 faster This athlete2:20 faster -
Cardiff29 Apr 2026Individual Open · Women1:39:05231/389Beat 41%
↑ 36 days after London Olympia 2026 4:01 better than the field Why ↓Close ↑
4:29 faster on the clock, and the race was 0:28 faster for everyone, so 4:01 of it was this athlete.
The fieldCompare these two →0:28 faster This athlete4:29 faster -
London Olympia24 Mar 2026Individual Open · Women1:43:34179/253Beat 29%
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Birmingham22 Oct 2025Doubles Open · Women1:51:17 PB865/904Beat 4%