Progress against the field
Between Malaga 2025 and Cardiff 2026, Harri Stallard pulled 4:45 ahead of the field.
The clock says 9:31 faster, but the races themselves got 4:46 quicker for everyone.
The longest gap between two races compared here, 215 days between Malaga 2025 and Birmingham 2025, still ended 5:05 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. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
5 races · 4 events
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Cardiff29 Apr 2026Doubles Open · Men1:08:43 PB158/430Beat 63%
↑ 334 days after Cardiff 2025, with David Neilly 8:05 better than the field Why ↓Close ↑
8:05 better than the field: 10:00 faster on the clock, against 1:55 faster for everyone.
The fieldCompare these two →1:55 faster This pair10:00 faster -
Cardiff29 Apr 2026Individual Open · Men1:21:44 PB218/466Beat 53%
↑ 189 days after Birmingham 2025 0:20 worse than the field Faster on the clock, behind the field Why ↓Close ↑
3:40 faster on the clock, yet the race was 4:00 faster for everyone, so 0:20 was lost on the field.
The fieldCompare these two →4:00 faster This athlete3:40 faster -
Birmingham22 Oct 2025Individual Open · Men1:25:24936/1821Beat 49%
↑ 215 days after Malaga 2025 5:05 better than the field Why ↓Close ↑
5:05 better than the field: 5:51 faster on the clock, against 0:46 faster for everyone.
The fieldCompare these two →0:46 faster This athlete5:51 faster -
Cardiff30 May 2025Doubles Open · Men1:18:43463/563Beat 18%
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Malaga21 Mar 2025Individual Open · Men1:31:15383/534Beat 28%