Progress against the field
From Birmingham 2025 to London Excel 2025, Christi Preston has moved with the field: what changed on the clock changed for everyone.
Over the same races everyone got 3:04 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. The summary above covers Individual Open · Women, the one raced most; every comparison is in the list below.
Every race
7 races · 6 events
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Birmingham31 Oct 2026Individual Open · Women1:16:19 PB101/887Beat 89%
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New York28 May 2026Individual Open · Women1:25:56142/1061Beat 87%
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London Olympia24 Mar 2026Doubles Pro · Women1:09:32 PB66/314Beat 79%
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London Excel4 Dec 2025Individual Open · Women1:17:04165/1379Beat 88%
↑ 43 days after Birmingham 2025 0:07 worse than the field Why ↓Close ↑
2:57 faster on the clock, and the race was 3:04 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →3:04 faster This athlete2:57 faster -
Birmingham22 Oct 2025Doubles Open · Women1:08:13 PB33/904Beat 96%
↑ 347 days after Manchester 2024, with Rayna Kandola 7:00 better than the field Why ↓Close ↑
7:00 better than the field: 11:34 faster on the clock, against 4:34 faster for everyone.
The fieldCompare these two →4:34 faster This pair11:34 faster -
Birmingham22 Oct 2025Individual Open · Women1:20:01131/829Beat 84%
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Manchester9 Nov 2024Doubles Open · Women1:19:47195/486Beat 60%