Progress against the field
Martyn Leadbetter has gained 0:19 on the field from Cardiff 2025 to Cardiff 2026.
The clock says 7:42 faster, but the races themselves got 7:23 quicker for everyone.
The biggest step was Cardiff 2025 → Birmingham 2025: 3:25 on the field in 145 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
4 races · 4 events
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Cardiff29 Apr 2026Individual Open · Men1:31:04 PB309/466Beat 34%
↑ 146 days after London Excel 2025 1:45 better than the field Why ↓Close ↑
3:30 faster on the clock, and the race was 1:45 faster for everyone, so 1:45 of it was this athlete.
The fieldCompare these two →1:45 faster This athlete3:30 faster -
London Excel4 Dec 2025Individual Open · Men1:34:342071/2771Beat 25%
↑ 43 days after Birmingham 2025 4:51 worse than the field Why ↓Close ↑
1:49 slower on the clock in a race that was 3:02 faster for everyone: 4:51 lost to the field.
The fieldCompare these two →3:02 faster This athlete1:49 slower -
Birmingham22 Oct 2025Individual Open · Men1:32:451073/1600Beat 33%
↑ 145 days after Cardiff 2025 3:25 better than the field Why ↓Close ↑
3:25 better than the field: 6:01 faster on the clock, against 2:36 faster for everyone.
The fieldCompare these two →2:36 faster This athlete6:01 faster -
Cardiff30 May 2025Individual Open · Men1:38:46538/639Beat 16%