Progress against the field
Between Birmingham 2024 and London Excel 2025, David Jamieson pulled 3:12 ahead of the field.
The clock says 13:47 faster, but the races themselves got 10:35 quicker for everyone.
Ahead of the field in 3 of 4 comparisons.
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. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
7 races · 7 events
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Manchester21 Jan 2026Doubles Open · Men1:12:11 PB167/398Beat 58%
↑ 236 days after Cardiff 2025, with Michael Roberts 2:21 better than the field Why ↓Close ↑
The race was 0:30 slower for everyone and the clock still says 1:51 faster: 2:21 gained on the field.
The fieldCompare these two →0:30 slower This pair1:51 faster -
London Excel4 Dec 2025Individual Open · Men1:09:22 PB388/2779Beat 86%
↑ 43 days after Birmingham 2025 1:19 better than the field Why ↓Close ↑
4:21 faster on the clock, and the race was 3:02 faster for everyone, so 1:19 of it was this athlete.
The fieldCompare these two →3:02 faster This athlete4:21 faster -
Birmingham22 Oct 2025Individual Open · Men1:13:43303/1600Beat 81%
↑ 172 days after London 2025 1:44 better than the field Why ↓Close ↑
1:49 faster on the clock, and the race was 0:05 faster for everyone, so 1:44 of it was this athlete.
The fieldCompare these two →0:05 faster This athlete1:49 faster -
Cardiff30 May 2025Doubles Open · Men1:14:02395/563Beat 30%
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London3 May 2025Individual Open · Men1:15:32586/1917Beat 69%
↑ 52 days after Glasgow 2025 2:18 better than the field Why ↓Close ↑
2:18 better than the field: 4:25 faster on the clock, against 2:07 faster for everyone.
The fieldCompare these two →2:07 faster This athlete4:25 faster -
Glasgow12 Mar 2025Individual Open · Men1:19:57673/1588Beat 58%
↑ 138 days after Birmingham 2024 2:09 worse than the field Faster on the clock, behind the field Why ↓Close ↑
3:12 faster on the clock, yet the race was 5:21 faster for everyone, so 2:09 was lost on the field.
The fieldCompare these two →5:21 faster This athlete3:12 faster -
Birmingham25 Oct 2024Individual Open · Men1:23:09849/1916Beat 56%