Progress against the field
Between Oslo 2025 and Birmingham 2026, Denise Sandford and Mark Brighouse lost 11:14 to the field.
Over the same races everyone got 5:31 quicker, so 5:43 slower on the clock looks better than it was.
The longest gap between two races compared here, 374 days between Birmingham 2025 and Birmingham 2026, cost 8:25 on 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. The summary above covers Doubles Open · Mixed, with Mark Brighouse, the one raced most; every comparison is in the list below.
Every race
8 races · 8 events
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Birmingham31 Oct 2026Doubles Open · Mixed1:30:31411/560Beat 27%
↑ 374 days after Birmingham 2025, with Mark Brighouse 8:25 worse than the field Why ↓Close ↑
6:08 slower on the clock in a race that was 2:17 faster for everyone: 8:25 lost to the field.
The fieldCompare these two →2:17 faster This pair6:08 slower -
Cardiff29 Apr 2026Individual Open · Women1:56:00 PB326/389Beat 16%
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Birmingham22 Oct 2025Doubles Open · Mixed1:24:23554/889Beat 38%
↑ 26 days after Oslo 2025, with Mark Brighouse 2:49 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:25 faster on the clock, yet the race was 3:14 faster for everyone, so 2:49 was lost on the field.
The fieldCompare these two →3:14 faster This pair0:25 faster -
Oslo26 Sep 2025Doubles Open · Mixed1:24:48212/344Beat 38%
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Cardiff30 May 2025Doubles Open · Women1:24:32 PB305/529Beat 42%
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Berlin16 May 2025Doubles Open · Mixed1:24:35428/528Beat 19%
↑ 65 days after Glasgow 2025, with Mark Brighouse 8:10 worse than the field Why ↓Close ↑
3:20 slower on the clock in a race that was 4:50 faster for everyone: 8:10 lost to the field.
The fieldCompare these two →4:50 faster This pair3:20 slower -
Glasgow12 Mar 2025Doubles Open · Mixed1:21:15 PB454/841Beat 46%
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Copenhagen23 Mar 2024Doubles Open · Mixed1:27:48288/337Beat 15%