Progress against the field
Between Manchester 2025 and Birmingham 2026, Leah Bancroft pulled 8:08 ahead of the field.
Over the same races everyone got 5:48 quicker, so 13:56 faster on the clock looks better than it was.
331 days between London Excel 2025 and Birmingham 2026 is the longest gap compared here, and the second race was 1:10 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
5 races · 5 events
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Birmingham31 Oct 2026Individual Open · Women1:21:13 PB41/279Beat 85%
↑ 331 days after London Excel 2025 1:10 better than the field Why ↓Close ↑
2:47 faster on the clock, and the race was 1:37 faster for everyone, so 1:10 of it was this athlete.
The fieldCompare these two →1:37 faster This athlete2:47 faster -
Manchester21 Jan 2026Doubles Open · Women1:28:39 PB681/1155Beat 41%
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London Excel4 Dec 2025Individual Open · Women1:24:00348/1379Beat 75%
↑ 314 days after Manchester 2025 6:58 better than the field Why ↓Close ↑
11:09 faster on the clock, and the race was 4:11 faster for everyone, so 6:58 of it was this athlete.
The fieldCompare these two →4:11 faster This athlete11:09 faster -
Birmingham22 Oct 2025Doubles Open · Mixed1:18:30 PB461/954Beat 52%
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Manchester24 Jan 2025Individual Open · Women1:35:09303/539Beat 44%