Progress against the field
Between Birmingham 2022 and Glasgow 2025, Rozanne Collins lost 13:53 to the field.
Over the same races everyone got 12:20 quicker, so 1:33 slower on the clock looks better than it was.
The longest gap between two races compared here, 375 days between Glasgow 2024 and Glasgow 2025, cost 9:47 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
5 races · 5 events
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Glasgow12 Mar 2025Individual Open · Women1:41:02467/649Beat 28%
↑ 375 days after Glasgow 2024 9:47 worse than the field Why ↓Close ↑
5:51 slower on the clock in a race that was 3:56 faster for everyone: 9:47 lost to the field.
The fieldCompare these two →3:56 faster This athlete5:51 slower -
Glasgow2 Mar 2024Individual Open · Women1:35:11459/816Beat 44%
↑ 126 days after Dublin 2023 1:30 better than the field Why ↓Close ↑
8:47 faster on the clock, and the race was 7:17 faster for everyone, so 1:30 of it was this athlete.
The fieldCompare these two →7:17 faster This athlete8:47 faster -
Dublin28 Oct 2023Individual Open · Women1:43:58235/363Beat 35%
↑ 259 days after Glasgow 2023 11:37 worse than the field Why ↓Close ↑
16:57 slower on the clock in a race that was 5:20 slower for everyone: 11:37 lost to the field.
The fieldCompare these two →5:20 slower This athlete16:57 slower -
Glasgow11 Feb 2023Individual Open · Women1:27:01 PB196/442Beat 56%
↑ 119 days after Birmingham 2022 6:01 better than the field Why ↓Close ↑
12:28 faster on the clock, and the race was 6:27 faster for everyone, so 6:01 of it was this athlete.
The fieldCompare these two →6:27 faster This athlete12:28 faster -
Birmingham15 Oct 2022Individual Open · Women1:39:29274/372Beat 26%