Progress against the field
Between Barcelona 2025 and Manchester 2026, Derek Mason pulled 14:33 ahead of the field.
The clock says 17:31 faster, but the races themselves got 2:58 quicker for everyone.
The longest gap between two races compared here, 201 days between Barcelona 2025 and Dublin 2025, still ended 10:25 ahead of the field.
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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Manchester21 Jan 2026Individual Open · Men1:51:411340/1463Beat 8%
↑ 48 days after London Excel 2025 3:53 worse than the field Why ↓Close ↑
3:53 behind the field: 5:00 slower on the clock, against 1:07 slower for everyone.
The fieldCompare these two →1:07 slower This athlete5:00 slower -
London Excel4 Dec 2025Individual Open · Men1:46:41 PB2524/2779Beat 9%
↑ 22 days after Dublin 2025 8:01 better than the field Why ↓Close ↑
8:01 better than the field: 8:30 faster on the clock, against 0:29 faster for everyone.
The fieldCompare these two →0:29 faster This athlete8:30 faster -
Dublin12 Nov 2025Individual Open · Men1:55:11907/955Beat 5%
↑ 201 days after Barcelona 2025 10:25 better than the field Why ↓Close ↑
14:01 faster on the clock, and the race was 3:36 faster for everyone, so 10:25 of it was this athlete.
The fieldCompare these two →3:36 faster This athlete14:01 faster -
Barcelona25 Apr 2025Individual Open · Men2:09:121095/1106Beat 1%