Progress against the field
Between London 2024 and Manchester 2026, Mark Harris lost 22:56 to the field.
Over the same races everyone got 6:39 quicker, so 16:17 slower on the clock looks better than it was.
236 days between Cardiff 2025 and Manchester 2026 is the longest gap compared here, and the second race was 23:01 behind 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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Manchester21 Jan 2026Individual Open · Men1:44:151247/1463Beat 15%
↑ 236 days after Cardiff 2025 23:01 worse than the field Why ↓Close ↑
20:22 slower on the clock in a race that was 2:39 faster for everyone: 23:01 lost to the field.
The fieldCompare these two →2:39 faster This athlete20:22 slower -
Cardiff30 May 2025Individual Open · Men1:23:53 PB334/639Beat 48%
↑ 182 days after London 2024 0:05 better than the field Why ↓Close ↑
Moved with the field: 4:05 faster on the clock, against 4:00 faster for everyone.
The fieldCompare these two →4:00 faster This athlete4:05 faster -
Glasgow12 Mar 2025Relay · Men1:10:5530/42Beat 29%
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London29 Nov 2024Individual Open · Men1:27:58403/688Beat 41%
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Birmingham25 Oct 2024Doubles Open · Mixed1:33:18 PB743/894Beat 17%
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London26 Nov 2023Individual Pro · Men1:32:16 PB242/321Beat 25%