Progress against the field
Between Birmingham 2024 and Birmingham 2026, Thomas Perrins lost 9:19 to the field.
Over the same races everyone got 7:23 quicker, so 1:56 slower 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 5:17 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.
Every race
6 races · 6 events
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Birmingham31 Oct 2026Individual Pro · Men1:13:00275/693Beat 60%
↑ 331 days after London Excel 2025 5:17 worse than the field Why ↓Close ↑
4:31 slower on the clock in a race that was 0:46 faster for everyone: 5:17 lost to the field.
The fieldCompare these two →0:46 faster This athlete4:31 slower -
EMEA London Olympia24 Mar 2026Individual Open · Men1:02:03 PB163/958Beat 83%
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London Excel4 Dec 2025Individual Pro · Men1:08:29129/462Beat 72%
↑ 43 days after Birmingham 2025 2:36 worse than the field Why ↓Close ↑
0:41 slower on the clock in a race that was 1:55 faster for everyone: 2:36 lost to the field.
The fieldCompare these two →1:55 faster This athlete0:41 slower -
Birmingham22 Oct 2025Individual Pro · Men1:07:4833/137Beat 76%
↑ 327 days after London 2024 2:05 worse than the field Why ↓Close ↑
2:05 behind the field: 0:05 slower on the clock, against 2:00 faster for everyone.
The fieldCompare these two →2:00 faster This athlete0:05 slower -
London29 Nov 2024Individual Pro · Men1:07:43 PB22/136Beat 84%
↑ 35 days after Birmingham 2024 0:39 better than the field Why ↓Close ↑
3:21 faster on the clock, and the race was 2:42 faster for everyone, so 0:39 of it was this athlete.
The fieldCompare these two →2:42 faster This athlete3:21 faster -
Birmingham25 Oct 2024Individual Pro · Men1:11:0424/135Beat 82%