Progress against the field
Between Birmingham 2025 and Manchester 2026, Marcus James pulled 13:56 ahead of the field.
Over the same races everyone got 1:55 quicker, so 15:51 faster on the clock looks better than it was.
The biggest step was Birmingham 2025 → London Excel 2025: 12:03 on the field in 43 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
3 races · 3 events
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Manchester21 Jan 2026Individual Open · Men1:45:14 PB1264/1463Beat 14%
↑ 48 days after London Excel 2025 1:53 better than the field Why ↓Close ↑
0:46 faster on the clock in a race that was 1:07 slower for everyone: 1:53 better than the field.
The fieldCompare these two →1:07 slower This athlete0:46 faster -
London Excel4 Dec 2025Individual Open · Men1:46:002510/2779Beat 10%
↑ 43 days after Birmingham 2025 12:03 better than the field Why ↓Close ↑
12:03 better than the field: 15:05 faster on the clock, against 3:02 faster for everyone.
The fieldCompare these two →3:02 faster This athlete15:05 faster -
Birmingham22 Oct 2025Individual Open · Men2:01:051733/1821Beat 5%