Progress against the field
Between Cardiff 2026 and Berlin 2026, Karen Cooper lost 5:21 to the field.
The clock says 9:08 slower, but the races themselves got 3:47 slower 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. The summary above covers Individual Open · Women, the one raced most; every comparison is in the list below.
Every race
5 races · 5 events
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Berlin22 May 2026Individual Open · Women1:43:08546/889Beat 39%
↑ 23 days after Cardiff 2026 5:21 worse than the field Why ↓Close ↑
9:08 slower on the clock in a race that was 3:47 slower for everyone: 5:21 lost to the field.
The fieldCompare these two →3:47 slower This athlete9:08 slower -
Cardiff29 Apr 2026Individual Open · Women1:34:00 PB202/351Beat 43%
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Glasgow11 Mar 2026Doubles Open · Women1:25:37 PB645/1618Beat 60%
↑ 140 days after Birmingham 2025, with Grace Mucklin 1:57 better than the field Why ↓Close ↑
1:54 faster on the clock in a race that was 0:03 slower for everyone: 1:57 better than the field.
The fieldCompare these two →0:03 slower This pair1:54 faster -
Frankfurt12 Dec 2025Individual Open · Women1:37:32668/1071Beat 38%
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Birmingham22 Oct 2025Doubles Open · Women1:27:31648/1111Beat 42%