Progress against the field
Between Birmingham 2025 and London Olympia 2026, Carla O'Brien lost 3:07 to the field.
Over the same races everyone got 4:23 quicker, so 1:16 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 · 3 events
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Cardiff29 Apr 2026Doubles Pro · Women1:24:08 PB136/196Beat 31%
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London Olympia24 Mar 2026Individual Open · Women1:37:08 PB436/758Beat 43%
↑ 153 days after Birmingham 2025 3:07 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:16 faster on the clock looks better than it was: the race was 4:23 faster for everyone, which leaves this 3:07 behind the field.
The fieldCompare these two →4:23 faster This athlete1:16 faster -
Birmingham22 Oct 2025Individual Open · Women1:38:24537/829Beat 35%