Progress against the field
Jessica Iles has gained 3:50 on the field from London 2025 to Cardiff 2026.
The clock says 7:33 faster, but the races themselves got 3:43 quicker for everyone.
The longest gap between two races compared here, 325 days between London 2025 and London Olympia 2026, still ended 2:58 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
5 races · 4 events
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Birmingham31 Oct 2026Doubles Open · Women1:11:11 PB30/341Beat 91%
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Cardiff29 Apr 2026Relay · Women1:21:3132/75Beat 57%
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Cardiff29 Apr 2026Individual Open · Women1:19:29 PB53/389Beat 86%
↑ 36 days after London Olympia 2026 0:52 better than the field Why ↓Close ↑
0:52 better than the field: 1:20 faster on the clock, against 0:28 faster for everyone.
The fieldCompare these two →0:28 faster This athlete1:20 faster -
London Olympia24 Mar 2026Individual Open · Women1:20:4940/253Beat 84%
↑ 325 days after London 2025 2:58 better than the field Why ↓Close ↑
2:58 better than the field: 6:13 faster on the clock, against 3:15 faster for everyone.
The fieldCompare these two →3:15 faster This athlete6:13 faster -
London3 May 2025Individual Open · Women1:27:02532/1368Beat 61%