Progress against the field
Between Glasgow 2025 and Birmingham 2026, Kirsty Hirst lost 9:07 to the field.
Over the same races everyone got 4:52 quicker, so 4:15 slower on the clock looks better than it was.
The longest gap between two races compared here, 267 days between Glasgow 2025 and London Excel 2025, cost 3:52 on 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
4 races · 4 events
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Birmingham31 Oct 2026Individual Open · Women1:44:54208/279Beat 25%
↑ 234 days after Glasgow 2026 6:10 worse than the field Why ↓Close ↑
6:10 behind the field: 4:44 slower on the clock, against 1:26 faster for everyone.
The fieldCompare these two →1:26 faster This athlete4:44 slower -
Glasgow11 Mar 2026Individual Open · Women1:40:10 PB660/1084Beat 39%
↑ 97 days after London Excel 2025 0:55 better than the field Why ↓Close ↑
0:55 better than the field: 1:15 faster on the clock, against 0:20 faster for everyone.
The fieldCompare these two →0:20 faster This athlete1:15 faster -
London Excel4 Dec 2025Individual Open · Women1:41:251184/1542Beat 23%
↑ 267 days after Glasgow 2025 3:52 worse than the field Why ↓Close ↑
0:46 slower on the clock in a race that was 3:06 faster for everyone: 3:52 lost to the field.
The fieldCompare these two →3:06 faster This athlete0:46 slower -
Glasgow12 Mar 2025Individual Open · Women1:40:39461/649Beat 29%