Progress against the field
Between Manchester 2025 and Cardiff 2025, Eleri Haf Rees pulled 0:22 ahead of the field.
The clock says 6:04 faster, but the races themselves got 5:42 quicker for everyone.
The largest gain on the field came from Manchester 2025 → London 2025: 5:28 in 99 days.
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
4 races · 4 events
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Manchester21 Jan 2026Doubles Open · Women1:17:41 PB37/193Beat 81%
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Cardiff30 May 2025Individual Open · Women1:29:31192/400Beat 52%
↑ 27 days after London 2025 5:06 worse than the field Why ↓Close ↑
5:06 behind the field: 3:36 slower on the clock, against 1:30 faster for everyone.
The fieldCompare these two →1:30 faster This athlete3:36 slower -
London3 May 2025Individual Open · Women1:25:55 PB485/1368Beat 65%
↑ 99 days after Manchester 2025 5:28 better than the field Why ↓Close ↑
9:40 faster on the clock, and the race was 4:12 faster for everyone, so 5:28 of it was this athlete.
The fieldCompare these two →4:12 faster This athlete9:40 faster -
Manchester24 Jan 2025Individual Open · Women1:35:35311/539Beat 42%