Progress against the field
Hayley Biggs has dropped 2:12 behind the field from Birmingham 2023 to Birmingham 2025.
Over the same races everyone got 6:53 quicker, so 4:41 faster on the clock looks better than it was.
The longest gap between two races compared here, 370 days between Birmingham 2023 and Birmingham 2024, still ended 1:06 ahead of 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
9 races · 7 events
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Manchester21 Jan 2026Doubles Pro · Women1:12:338/28Beat 71%
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Madrid27 Nov 2025Doubles Open · Mixed1:12:36 PB133/789Beat 83%
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Birmingham22 Oct 2025Individual Open · Women1:16:43 PB74/748Beat 90%
↑ 362 days after Birmingham 2024 3:18 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:15 faster on the clock, yet the race was 4:33 faster for everyone, so 3:18 was lost on the field.
The fieldCompare these two →4:33 faster This athlete1:15 faster -
Rome26 Sep 2025Doubles Pro · Women1:09:12 PB16/61Beat 74%
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Katowice22 Feb 2025Relay · Women1:04:332/20Beat 90%
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Katowice22 Feb 2025Individual Pro · Women1:20:20 PB26/77Beat 66%
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Birmingham25 Oct 2024Relay · Women1:02:251/48Beat 98%
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Birmingham25 Oct 2024Individual Open · Women1:17:5894/846Beat 89%
↑ 370 days after Birmingham 2023 1:06 better than the field Why ↓Close ↑
3:26 faster on the clock, and the race was 2:20 faster for everyone, so 1:06 of it was this athlete.
The fieldCompare these two →2:20 faster This athlete3:26 faster -
Birmingham21 Oct 2023Individual Open · Women1:21:2485/532Beat 84%