Progress against the field
Between Cardiff 2025 and Cardiff 2026, Isabel Protheroe pulled 3:28 ahead of the field.
The clock says 6:51 faster, but the races themselves got 3:23 quicker for everyone.
188 days between Cardiff 2025 and London Excel 2025 is the longest gap compared here, and the second race was 3:45 behind 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 · 5 events
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Cardiff29 Apr 2026Individual Open · Women1:22:12 PB84/351Beat 76%
↑ 146 days after London Excel 2025 7:13 better than the field Why ↓Close ↑
7:13 better than the field: 8:22 faster on the clock, against 1:09 faster for everyone.
The fieldCompare these two →1:09 faster This athlete8:22 faster -
London Excel4 Dec 2025Individual Open · Women1:30:34603/1379Beat 56%
↑ 188 days after Cardiff 2025 3:45 worse than the field Why ↓Close ↑
3:45 behind the field: 1:31 slower on the clock, against 2:14 faster for everyone.
The fieldCompare these two →2:14 faster This athlete1:31 slower -
Cardiff30 May 2025Individual Open · Women1:29:03277/587Beat 53%
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Manchester24 Jan 2025Doubles Open · Women1:24:40 PB440/857Beat 49%
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Birmingham25 Oct 2024Doubles Open · Women1:31:22687/973Beat 29%