Progress against the field
Jonathan Marsh has gained 12:31 on the field from London Excel 2025 to Cardiff 2026.
Over the same races everyone got 4:48 quicker, so 17:19 faster on the clock looks better than it was.
The biggest step was London Excel 2025 → Manchester 2026: 12:32 on the field in 48 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.
Every race
7 races · 7 events
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Birmingham31 Oct 2026Individual Pro · Men1:34:03 PB598/693Beat 14%
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Cardiff29 Apr 2026Individual Open · Men1:39:21 PB714/913Beat 22%
↑ 36 days after London Olympia 2026 0:58 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:18 faster on the clock looks better than it was: the race was 1:16 faster for everyone, which leaves this 0:58 behind the field.
The fieldCompare these two →1:16 faster This athlete0:18 faster -
London Olympia24 Mar 2026Individual Open · Men1:39:39702/897Beat 22%
↑ 13 days after Glasgow 2026 3:24 better than the field Why ↓Close ↑
3:24 better than the field: 5:38 faster on the clock, against 2:14 faster for everyone.
The fieldCompare these two →2:14 faster This athlete5:38 faster -
Glasgow11 Mar 2026Individual Open · Men1:45:17513/613Beat 16%
↑ 49 days after Manchester 2026 2:27 worse than the field Why ↓Close ↑
0:02 slower on the clock in a race that was 2:25 faster for everyone: 2:27 lost to the field.
The fieldCompare these two →2:25 faster This athlete0:02 slower -
Manchester21 Jan 2026Individual Open · Men1:45:151265/1463Beat 14%
↑ 48 days after London Excel 2025 12:32 better than the field Why ↓Close ↑
The race was 1:07 slower for everyone and the clock still says 11:25 faster: 12:32 gained on the field.
The fieldCompare these two →1:07 slower This athlete11:25 faster -
London Excel4 Dec 2025Individual Open · Men1:56:402661/2779Beat 4%
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BudapestDate unknownDoubles Open · Men1:18:38 PB160/293Beat 45%