Progress against the field
Between Malaga 2025 and London Excel 2025, John Marks lost 1:13 to the field.
The clock says 4:31 faster, but the races themselves got 5:44 quicker for everyone.
The biggest step was Malaga 2025 → Berlin 2025: 3:46 on the field in 56 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
9 races · 9 events
-
Birmingham31 Oct 2026Individual Open · Men1:20:24 PB293/693Beat 58%
-
Beijing10 Sep 2026Individual Open · Men1:25:24195/665Beat 71%
-
Malaga16 Apr 2026Individual Pro · Men1:29:27 PB380/460Beat 17%
-
London Excel4 Dec 2025Individual Open · Men1:23:211372/2771Beat 51%
↑ 43 days after Birmingham 2025 0:17 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:45 faster on the clock, yet the race was 3:02 faster for everyone, so 0:17 was lost on the field.
The fieldCompare these two →3:02 faster This athlete2:45 faster -
Birmingham22 Oct 2025Individual Open · Men1:26:06964/1821Beat 47%
↑ 159 days after Berlin 2025 4:42 worse than the field Why ↓Close ↑
5:20 slower on the clock in a race that was 0:38 slower for everyone: 4:42 lost to the field.
The fieldCompare these two →0:38 slower This athlete5:20 slower -
Berlin16 May 2025Individual Open · Men1:20:46956/1851Beat 48%
↑ 56 days after Malaga 2025 3:46 better than the field Why ↓Close ↑
7:06 faster on the clock, and the race was 3:20 faster for everyone, so 3:46 of it was this athlete.
The fieldCompare these two →3:20 faster This athlete7:06 faster -
Malaga21 Mar 2025Individual Open · Men1:27:52337/534Beat 37%
-
London25 Sep 2021Individual Open · Men1:38:17121/146Beat 17%
-
St. GallenDate unknownIndividual Open · Men1:27:40735/1003Beat 27%