Progress against the field
From Birmingham 2025 to Cardiff 2026, Shannon Mackie and Beth Williams got 2:38 faster than the field.
Over the same races everyone got 4:47 quicker, so 7:25 faster on the clock looks better than it was.
The biggest step was Manchester 2026 → Cardiff 2026: 2:09 on the field in 98 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.
Every race
4 races · 4 events
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Cardiff29 Apr 2026Doubles Open · Women1:15:06 PB52/265Beat 80%
↑ 98 days after Manchester 2026, with Beth Williams 2:09 better than the field Why ↓Close ↑
7:08 faster on the clock, and the race was 4:59 faster for everyone, so 2:09 of it was this pair.
The fieldCompare these two →4:59 faster This pair7:08 faster -
Manchester21 Jan 2026Doubles Open · Women1:22:14447/1155Beat 61%
↑ 91 days after Birmingham 2025, with Beth Williams 0:29 better than the field Why ↓Close ↑
The race was 0:12 slower for everyone and the clock still says 0:17 faster: 0:29 gained on the field.
The fieldCompare these two →0:12 slower This pair0:17 faster -
London Excel4 Dec 2025Doubles Open · Women1:38:581363/1599Beat 15%
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Birmingham22 Oct 2025Doubles Open · Women1:22:31449/1111Beat 60%