Progress against the field
Between Birmingham 2025 and London Excel 2025, Jodie Mitchell-Bird and Robyn Mitchell-Bird pulled 1:12 ahead of the field.
The races themselves barely changed, so 1:37 faster on the clock is the real picture.
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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London Excel4 Dec 2025Doubles Pro · Women1:14:19 PB110/339Beat 68%
↑ 43 days after Birmingham 2025, with Robyn Mitchell-Bird 1:12 better than the field Why ↓Close ↑
1:12 better than the field: 1:37 faster on the clock, against 0:25 faster for everyone.
The fieldCompare these two →0:25 faster This pair1:37 faster -
Birmingham22 Oct 2025Doubles Pro · Women1:15:5677/163Beat 53%
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Copenhagen14 Mar 2025Relay · Women1:06:442/36Beat 94%