Progress against the field
From Malaga 2025 to Birmingham 2026, Elizabeth Cassin got 10:48 faster than the field.
Over the same races everyone got 7:24 quicker, so 18:12 faster on the clock looks better than it was.
The longest gap between two races compared here, 258 days between Malaga 2025 and London Excel 2025, still ended 2:19 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 · Women, the one raced most; every comparison is in the list below.
Every race
7 races · 6 events
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Birmingham31 Oct 2026Individual Open · Women1:26:42 PB171/547Beat 69%
↑ 185 days after Cardiff 2026 1:33 better than the field Why ↓Close ↑
1:33 better than the field: 4:16 faster on the clock, against 2:43 faster for everyone.
The fieldCompare these two →2:43 faster This athlete4:16 faster -
Cardiff29 Apr 2026Individual Open · Women1:30:58267/646Beat 59%
↑ 146 days after London Excel 2025 6:56 better than the field Why ↓Close ↑
8:05 faster on the clock, and the race was 1:09 faster for everyone, so 6:56 of it was this athlete.
The fieldCompare these two →1:09 faster This athlete8:05 faster -
London Olympia24 Mar 2026Doubles Open · Women1:25:56 PB459/867Beat 47%
↑ 153 days after Birmingham 2025, with Jasmine Kirby 0:40 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:02 faster on the clock, yet the race was 2:42 faster for everyone, so 0:40 was lost on the field.
The fieldCompare these two →2:42 faster This pair2:02 faster -
London Excel4 Dec 2025Relay · Women1:28:2786/141Beat 39%
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London Excel4 Dec 2025Individual Open · Women1:39:03874/1379Beat 37%
↑ 258 days after Malaga 2025 2:19 better than the field Why ↓Close ↑
2:19 better than the field: 5:51 faster on the clock, against 3:32 faster for everyone.
The fieldCompare these two →3:32 faster This athlete5:51 faster -
Birmingham22 Oct 2025Doubles Open · Women1:27:58529/904Beat 42%
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Malaga21 Mar 2025Individual Open · Women1:44:54407/510Beat 20%