Progress against the field
Between Birmingham 2025 and Manchester 2026, Chris Roberts lost 25:54 to the field.
Over the same races everyone got 1:55 quicker, so 23:59 slower on the clock looks better than it was.
The biggest step was Birmingham 2025 → London Excel 2025: 9:18 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
5 races · 5 events
-
Las Vegas20 Feb 2026Individual Open · Men1:54:291462/1739Beat 16%
-
Manchester21 Jan 2026Individual Open · Men2:24:581456/1463Beat 1%
↑ 48 days after London Excel 2025 35:12 worse than the field Why ↓Close ↑
36:19 slower on the clock in a race that was 1:07 slower for everyone: 35:12 lost to the field.
The fieldCompare these two →1:07 slower This athlete36:19 slower -
London Excel4 Dec 2025Individual Open · Men1:48:39 PB2516/2771Beat 9%
↑ 43 days after Birmingham 2025 9:18 better than the field Why ↓Close ↑
12:20 faster on the clock, and the race was 3:02 faster for everyone, so 9:18 of it was this athlete.
The fieldCompare these two →3:02 faster This athlete12:20 faster -
Birmingham22 Oct 2025Individual Open · Men2:00:591732/1821Beat 5%
-
London29 Nov 2024Relay · Men1:13:3614/23Beat 39%