Progress against the field
From London 2025 to London Excel 2025, Christopher Duffy got 3:57 faster than the field.
Over the same races everyone got 3:07 quicker, so 7:04 faster on the clock looks better than it was.
The largest gain on the field came from London 2025 → Birmingham 2025: 4:24 in 172 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. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
5 races · 5 events
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Glasgow11 Mar 2026Doubles Open · Men1:08:16 PB305/917Beat 67%
↑ 364 days after Glasgow 2025, with Scott Lawrie 4:19 better than the field Why ↓Close ↑
4:19 better than the field: 5:01 faster on the clock, against 0:42 faster for everyone.
The fieldCompare these two →0:42 faster This pair5:01 faster -
London Excel4 Dec 2025Individual Open · Men1:15:58 PB795/2771Beat 71%
↑ 43 days after Birmingham 2025 0:27 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:35 faster on the clock, yet the race was 3:02 faster for everyone, so 0:27 was lost on the field.
The fieldCompare these two →3:02 faster This athlete2:35 faster -
Birmingham22 Oct 2025Individual Open · Men1:18:33509/1600Beat 68%
↑ 172 days after London 2025 4:24 better than the field Why ↓Close ↑
4:24 better than the field: 4:29 faster on the clock, against 0:05 faster for everyone.
The fieldCompare these two →0:05 faster This athlete4:29 faster -
London3 May 2025Individual Open · Men1:23:021006/1917Beat 48%
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Glasgow12 Mar 2025Doubles Open · Men1:13:17614/1105Beat 44%