Progress against the field
Between Gdansk 2025 and Birmingham 2026, Chris Shepley pulled 14:36 ahead of the field.
Over the same races everyone got 5:21 quicker, so 19:57 faster on the clock looks better than it was.
The longest gap between two races compared here, 185 days between Cardiff 2026 and Birmingham 2026, cost 22:17 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 Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
8 races · 8 events
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Birmingham31 Oct 2026Individual Open · Men1:59:50617/646Beat 5%
↑ 185 days after Cardiff 2026 22:17 worse than the field Why ↓Close ↑
22:17 behind the field: 20:34 slower on the clock, against 1:43 faster for everyone.
The fieldCompare these two →1:43 faster This athlete20:34 slower -
Cardiff29 Apr 2026Individual Open · Men1:39:16 PB375/466Beat 20%
↑ 98 days after Manchester 2026 0:02 worse than the field Why ↓Close ↑
Moved with the field: 3:27 faster on the clock, against 3:29 faster for everyone.
The fieldCompare these two →3:29 faster This athlete3:27 faster -
Glasgow11 Mar 2026Doubles Open · Men1:29:53 PB334/391Beat 15%
↑ 364 days after Glasgow 2025, with Jon Patrick 4:10 better than the field Why ↓Close ↑
4:52 faster on the clock, and the race was 0:42 faster for everyone, so 4:10 of it was this pair.
The fieldCompare these two →0:42 faster This pair4:52 faster -
Manchester21 Jan 2026Individual Open · Men1:42:43423/529Beat 20%
↑ 48 days after London Excel 2025 8:07 better than the field Why ↓Close ↑
The race was 1:07 slower for everyone and the clock still says 7:00 faster: 8:07 gained on the field.
The fieldCompare these two →1:07 slower This athlete7:00 faster -
London Excel4 Dec 2025Individual Open · Men1:49:432537/2771Beat 8%
↑ 53 days after Gdansk 2025 28:48 better than the field Why ↓Close ↑
28:48 better than the field: 30:04 faster on the clock, against 1:16 faster for everyone.
The fieldCompare these two →1:16 faster This athlete30:04 faster -
Gdansk12 Oct 2025Individual Open · Men2:19:47737/745Beat 1%
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Cardiff30 May 2025Individual Open · Men1:57:24612/639Beat 4%
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Glasgow12 Mar 2025Doubles Open · Men1:34:451031/1105Beat 7%