Progress against the field
From Glasgow 2023 to Glasgow 2025, Sian Valentine got 0:55 faster than the field.
The clock says 7:41 faster, but the races themselves got 6:46 quicker for everyone.
The longest gap between two races compared here, 622 days between Glasgow 2023 and Birmingham 2024, cost 5:15 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
3 races · 3 events
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Glasgow12 Mar 2025Individual Open · Women1:48:06 PB525/649Beat 19%
↑ 138 days after Birmingham 2024 6:10 better than the field Why ↓Close ↑
10:23 faster on the clock, and the race was 4:13 faster for everyone, so 6:10 of it was this athlete.
The fieldCompare these two →4:13 faster This athlete10:23 faster -
Birmingham25 Oct 2024Individual Open · Women1:58:29755/846Beat 11%
↑ 622 days after Glasgow 2023 5:15 worse than the field Why ↓Close ↑
2:42 slower on the clock in a race that was 2:33 faster for everyone: 5:15 lost to the field.
The fieldCompare these two →2:33 faster This athlete2:42 slower -
Glasgow11 Feb 2023Individual Open · Women1:55:47411/442Beat 7%