Progress against the field
Between Cardiff 2025 and Birmingham 2026, Steffan Robbins and Bethany Bosanko-Williams lost 0:21 to the field.
Over the same races everyone got 5:18 quicker, so 4:57 faster on the clock looks better than it was.
The longest gap between two races compared here, 331 days between London Excel 2025 and Birmingham 2026, cost 1:32 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.
Every race
6 races · 6 events
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Birmingham31 Oct 2026Doubles Open · Mixed1:22:21653/1159Beat 44%
↑ 331 days after London Excel 2025, with Bethany Bosanko-Williams 1:32 worse than the field Why ↓Close ↑
1:07 slower on the clock in a race that was 0:25 faster for everyone: 1:32 lost to the field.
The fieldCompare these two →0:25 faster This pair1:07 slower -
Cardiff29 Apr 2026Doubles Open · Men1:12:08 PB141/271Beat 48%
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London Excel4 Dec 2025Doubles Open · Mixed1:21:14839/1474Beat 43%
↑ 43 days after Birmingham 2025, with Bethany Bosanko-Williams 7:04 worse than the field Why ↓Close ↑
7:04 behind the field: 4:16 slower on the clock, against 2:48 faster for everyone.
The fieldCompare these two →2:48 faster This pair4:16 slower -
Birmingham22 Oct 2025Doubles Open · Mixed1:16:58 PB417/954Beat 56%
↑ 145 days after Cardiff 2025, with Bethany Bosanko-Williams 8:15 better than the field Why ↓Close ↑
10:20 faster on the clock, and the race was 2:05 faster for everyone, so 8:15 of it was this pair.
The fieldCompare these two →2:05 faster This pair10:20 faster -
Cardiff30 May 2025Doubles Open · Mixed1:27:18373/470Beat 21%
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London3 May 2025Doubles Open · Men1:15:22678/1010Beat 33%