Progress against the field
Between London 2024 and London Olympia 2026, Chelsea McMullen pulled 17:51 ahead of the field.
Over the same races everyone got 10:24 quicker, so 28:15 faster on the clock looks better than it was.
The biggest step was London 2024 → London 2025: 11:38 on the field in 155 days.
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
9 races · 8 events
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Cardiff29 Apr 2026Doubles Open · Women1:22:48119/265Beat 55%
↑ 334 days after Cardiff 2025, with Francesca Jenkins 6:01 worse than the field Why ↓Close ↑
6:01 behind the field: 3:18 slower on the clock, against 2:43 faster for everyone.
The fieldCompare these two →2:43 faster This pair3:18 slower -
London Olympia24 Mar 2026Doubles Open · Women1:17:47 PB39/174Beat 78%
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London Olympia24 Mar 2026Individual Open · Women1:26:14 PB220/758Beat 71%
↑ 153 days after Birmingham 2025 6:32 better than the field Why ↓Close ↑
6:32 better than the field: 10:55 faster on the clock, against 4:23 faster for everyone.
The fieldCompare these two →4:23 faster This athlete10:55 faster -
London Excel4 Dec 2025Doubles Open · Women1:24:53799/1599Beat 50%
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Birmingham22 Oct 2025Individual Open · Women1:37:09518/829Beat 38%
↑ 172 days after London 2025 0:19 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:19 faster on the clock, yet the race was 1:38 faster for everyone, so 0:19 was lost on the field.
The fieldCompare these two →1:38 faster This athlete1:19 faster -
Cardiff30 May 2025Doubles Open · Women1:19:30207/529Beat 61%
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London3 May 2025Individual Open · Women1:38:28907/1368Beat 34%
↑ 155 days after London 2024 11:38 better than the field Why ↓Close ↑
11:38 better than the field: 16:01 faster on the clock, against 4:23 faster for everyone.
The fieldCompare these two →4:23 faster This athlete16:01 faster -
Manchester24 Jan 2025Doubles Open · Women1:32:36644/857Beat 25%
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London29 Nov 2024Individual Open · Women1:54:29768/940Beat 18%