Progress against the field
Donna Jacobs has dropped 7:07 behind the field from Cardiff 2026 to Birmingham 2026.
The clock says 4:24 slower, but the races themselves got 2:43 quicker for everyone.
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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Birmingham31 Oct 2026Individual Open · Women1:27:00179/547Beat 67%
↑ 185 days after Cardiff 2026 7:07 worse than the field Why ↓Close ↑
4:24 slower on the clock in a race that was 2:43 faster for everyone: 7:07 lost to the field.
The fieldCompare these two →2:43 faster This athlete4:24 slower -
Cardiff29 Apr 2026Individual Open · Women1:22:36 PB76/400Beat 81%
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Glasgow12 Mar 2025Doubles Open · Women1:18:08 PB163/796Beat 80%