Progress against the field
Between Birmingham 2024 and Birmingham 2025, Rachael Brown and Dannii Perks lost 1:20 to the field.
Over the same races everyone got 4:17 quicker, so 2:57 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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Birmingham22 Oct 2025Doubles Open · Women1:33:46 PB309/411Beat 25%
↑ 362 days after Birmingham 2024, with Dannii Perks 1:20 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:57 faster on the clock, yet the race was 4:17 faster for everyone, so 1:20 was lost on the field.
The fieldCompare these two →4:17 faster This pair2:57 faster -
Manchester9 Nov 2024Doubles Open · Mixed1:04:34 PB47/410Beat 89%
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Birmingham25 Oct 2024Doubles Open · Women1:36:43800/973Beat 18%