Progress against the field
Ross Halley has dropped 3:46 behind the field from Manchester 2023 to Cardiff 2026.
The clock says 8:43 faster, but the races themselves got 12:29 quicker for everyone.
The longest gap between two races compared here, 921 days between Birmingham 2023 and Cardiff 2026, cost 6:18 on 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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Cardiff29 Apr 2026Individual Open · Men1:12:46 PB99/528Beat 81%
↑ 921 days after Birmingham 2023 6:18 worse than the field Faster on the clock, behind the field Why ↓Close ↑
3:15 faster on the clock looks better than it was: the race was 9:33 faster for everyone, which leaves this 6:18 behind the field.
The fieldCompare these two →9:33 faster This athlete3:15 faster -
Birmingham21 Oct 2023Individual Open · Men1:16:01214/1182Beat 82%
↑ 266 days after Manchester 2023 2:32 better than the field Why ↓Close ↑
2:32 better than the field: 5:28 faster on the clock, against 2:56 faster for everyone.
The fieldCompare these two →2:56 faster This athlete5:28 faster -
Manchester28 Jan 2023Individual Open · Men1:21:29173/649Beat 73%
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World Championships ManchesterDate unknownIndividual Pro · Men1:21:47 PB346/432Beat 20%