Progress against the field
Between Birmingham 2024 and London 2025, Shemma Scriven lost 3:12 to the field.
Over the same races everyone got 7:13 quicker, so 4:01 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
8 races · 8 events
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London Excel4 Dec 2025Doubles Open · Mixed1:10:59 PB283/1372Beat 79%
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Birmingham22 Oct 2025Doubles Open · Mixed1:16:04398/954Beat 58%
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Rome26 Sep 2025Doubles Open · Women1:16:40 PB158/673Beat 77%
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London3 May 2025Individual Open · Women1:29:20 PB607/1368Beat 56%
↑ 155 days after London 2024 3:09 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:14 faster on the clock looks better than it was: the race was 4:23 faster for everyone, which leaves this 3:09 behind the field.
The fieldCompare these two →4:23 faster This athlete1:14 faster -
London29 Nov 2024Individual Open · Women1:30:34294/590Beat 50%
↑ 35 days after Birmingham 2024 0:03 worse than the field Why ↓Close ↑
2:47 faster on the clock, and the race was 2:50 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →2:50 faster This athlete2:47 faster -
Birmingham25 Oct 2024Individual Open · Women1:33:21409/846Beat 52%
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Sports Direct HYROX London4 May 2024Doubles Open · Women1:23:11638/1419Beat 55%
↑ 160 days after London 2023, with Sue Cartwright 4:17 worse than the field Why ↓Close ↑
2:24 slower on the clock in a race that was 1:53 faster for everyone: 4:17 lost to the field.
The fieldCompare these two →1:53 faster This pair2:24 slower -
London26 Nov 2023Doubles Open · Women1:20:47409/1096Beat 63%