Progress against the field
Between Cardiff 2026 and Birmingham 2026, Olivia Back and Chelsea Allen pulled 0:16 ahead of the field.
Over the same races everyone got 1:39 quicker, so 1:55 faster on the clock looks better than it was.
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 · 2 events
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Birmingham31 Oct 2026Doubles Open · Women1:14:03 PB81/627Beat 87%
↑ 185 days after Cardiff 2026, with Chelsea Allen 0:16 better than the field Why ↓Close ↑
0:16 better than the field: 1:55 faster on the clock, against 1:39 faster for everyone.
The fieldCompare these two →1:39 faster This pair1:55 faster -
Birmingham31 Oct 2026Individual Open · Women1:12:10 PB28/545Beat 95%
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Cardiff29 Apr 2026Doubles Open · Women1:15:5879/430Beat 82%