Progress against the field
Between Birmingham 2025 and London Excel 2025, Hannah Simms pulled 1:05 ahead of the field.
The clock says 4:09 faster, but the races themselves got 3:04 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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London Excel4 Dec 2025Individual Open · Women1:42:40 PB1209/1542Beat 22%
↑ 43 days after Birmingham 2025 1:05 better than the field Why ↓Close ↑
4:09 faster on the clock, and the race was 3:04 faster for everyone, so 1:05 of it was this athlete.
The fieldCompare these two →3:04 faster This athlete4:09 faster -
Birmingham22 Oct 2025Individual Open · Women1:46:49293/380Beat 23%
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London3 May 2025Relay · Mixed1:19:2597/137Beat 29%