Progress against the field
Between London 2024 and Cardiff 2025, Imogen Basson lost 1:28 to the field.
The clock says 3:12 faster, but the races themselves got 4:40 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
5 races · 5 events
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London Excel4 Dec 2025Doubles Open · Women1:27:061177/1887Beat 38%
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Birmingham22 Oct 2025Doubles Open · Women1:13:39 PB132/1111Beat 88%
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Cardiff30 May 2025Individual Open · Women1:21:21 PB158/587Beat 73%
↑ 182 days after London 2024 1:28 worse than the field Faster on the clock, behind the field Why ↓Close ↑
3:12 faster on the clock, yet the race was 4:40 faster for everyone, so 1:28 was lost on the field.
The fieldCompare these two →4:40 faster This athlete3:12 faster -
London29 Nov 2024Individual Open · Women1:24:33196/590Beat 67%
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Birmingham25 Oct 2024Doubles Open · Women1:17:0965/397Beat 84%