Progress against the field
Fran Skinner and Amberly Castle have gained 5:41 on the field from Manchester 2026 to Birmingham 2026.
Over the same races everyone got 3:04 quicker, so 8:45 faster on the clock looks better than it was.
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
10 races · 8 events
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Birmingham31 Oct 2026Doubles Pro · Women1:10:49 PB105/301Beat 65%
↑ 283 days after Manchester 2026, with Amberly Castle 5:41 better than the field Why ↓Close ↑
8:45 faster on the clock, and the race was 3:04 faster for everyone, so 5:41 of it was this pair.
The fieldCompare these two →3:04 faster This pair8:45 faster -
Cardiff29 Apr 2026Relay · Mixed1:00:1714/73Beat 81%
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EMEA London Olympia24 Mar 2026Relay · Mixed1:03:3010/25Beat 60%
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EMEA London Olympia24 Mar 2026Doubles Open · Women1:09:46 PB57/220Beat 74%
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Manchester21 Jan 2026Doubles Pro · Women1:19:34123/237Beat 48%
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London Excel4 Dec 2025Relay · Women1:23:2068/141Beat 52%
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Birmingham22 Oct 2025Doubles Open · Mixed1:09:30 PB188/954Beat 80%
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London3 May 2025Doubles Pro · Women1:15:0181/233Beat 65%
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London3 May 2025Relay · Women1:23:0782/141Beat 42%
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Barcelona25 Apr 2025Doubles Open · Women1:16:22104/578Beat 82%