Progress against the field
From London 2025 to London Olympia 2026, Jamie Arlain got 2:03 faster than the field.
The clock says 8:35 faster, but the races themselves got 6:32 quicker for everyone.
The largest gain on the field came from Cardiff 2025 → Birmingham 2025: 10:28 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
5 races · 5 events
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London Olympia24 Mar 2026Individual Open · Men1:24:49368/716Beat 49%
↑ 110 days after London Excel 2025 4:41 worse than the field Why ↓Close ↑
4:41 behind the field: 2:47 slower on the clock, against 1:54 faster for everyone.
The fieldCompare these two →1:54 faster This athlete2:47 slower -
London Excel4 Dec 2025Individual Open · Men1:22:02 PB1342/2779Beat 52%
↑ 43 days after Birmingham 2025 1:05 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:57 faster on the clock, yet the race was 3:02 faster for everyone, so 1:05 was lost on the field.
The fieldCompare these two →3:02 faster This athlete1:57 faster -
Birmingham22 Oct 2025Individual Open · Men1:23:59236/523Beat 55%
↑ 145 days after Cardiff 2025 10:28 better than the field Why ↓Close ↑
13:04 faster on the clock, and the race was 2:36 faster for everyone, so 10:28 of it was this athlete.
The fieldCompare these two →2:36 faster This athlete13:04 faster -
Cardiff30 May 2025Individual Open · Men1:37:031163/1401Beat 17%
↑ 27 days after London 2025 2:39 worse than the field Why ↓Close ↑
2:39 behind the field: 3:39 slower on the clock, against 1:00 slower for everyone.
The fieldCompare these two →1:00 slower This athlete3:39 slower -
London3 May 2025Individual Open · Men1:33:241475/1917Beat 23%