Progress against the field
Between Birmingham 2025 and Birmingham 2026, Christabel Boersma and Ceri Cave pulled 2:06 ahead of the field.
The clock says 4:53 faster, but the races themselves got 2:47 quicker for everyone.
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 Doubles Pro · Women, with Ceri Cave, the one raced most; every comparison is in the list below.
Every race
10 races · 8 events
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Birmingham31 Oct 2026Doubles Pro · Women1:11:39 PB116/301Beat 62%
↑ 331 days after London Excel 2025, with Ceri Cave 0:09 better than the field Why ↓Close ↑
Moved with the field: 2:31 faster on the clock, against 2:22 faster for everyone.
The fieldCompare these two →2:22 faster This pair2:31 faster -
Birmingham31 Oct 2026Doubles Open · Mixed1:04:11 PB48/586Beat 92%
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Cardiff29 Apr 2026Individual Open · Women1:18:14 PB44/389Beat 89%
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London Excel4 Dec 2025Doubles Pro · Women1:14:10106/339Beat 69%
↑ 43 days after Birmingham 2025, with Ceri Cave 1:57 better than the field Why ↓Close ↑
2:22 faster on the clock, and the race was 0:25 faster for everyone, so 1:57 of it was this pair.
The fieldCompare these two →0:25 faster This pair2:22 faster -
Birmingham22 Oct 2025Doubles Pro · Women1:16:3284/163Beat 49%
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Glasgow12 Mar 2025Doubles Open · Women1:11:0064/1051Beat 94%
↑ 472 days after London 2023, with Ceri Cave 1:17 worse than the field Why ↓Close ↑
0:26 slower on the clock in a race that was 0:51 faster for everyone: 1:17 lost to the field.
The fieldCompare these two →0:51 faster This pair0:26 slower -
London29 Nov 2024Doubles Open · Mixed1:27:16570/795Beat 28%
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London29 Nov 2024Doubles Pro · Women1:17:2429/73Beat 60%
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Copenhagen23 Mar 2024Doubles Open · Mixed1:12:46126/337Beat 63%
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London26 Nov 2023Doubles Open · Women1:10:34 PB80/1096Beat 93%