Progress against the field
From London Excel 2025 to Istanbul 2026, Jo Perkins got 3:15 faster than the field.
The clock says 5:48 faster, but the races themselves got 2:33 quicker for everyone.
The largest gain on the field came from Berlin 2026 → Istanbul 2026: 3:28 in 71 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
7 races · 6 events
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Hamburg28 Oct 2026Doubles Pro · Women1:14:01 PB66/223Beat 70%
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Istanbul1 Aug 2026Individual Open · Women1:12:47 PB17/416Beat 96%
↑ 71 days after Berlin 2026 3:28 better than the field Why ↓Close ↑
8:15 faster on the clock, and the race was 4:47 faster for everyone, so 3:28 of it was this athlete.
The fieldCompare these two →4:47 faster This athlete8:15 faster -
Berlin22 May 2026Individual Open · Women1:21:0249/315Beat 84%
↑ 121 days after Manchester 2026 1:45 worse than the field Why ↓Close ↑
1:45 behind the field: 3:33 slower on the clock, against 1:48 slower for everyone.
The fieldCompare these two →1:48 slower This athlete3:33 slower -
Cardiff29 Apr 2026Doubles Open · Women1:09:26 PB15/265Beat 94%
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Manchester21 Jan 2026Individual Open · Women1:17:29108/825Beat 87%
↑ 48 days after London Excel 2025 1:32 better than the field Why ↓Close ↑
1:06 faster on the clock in a race that was 0:26 slower for everyone: 1:32 better than the field.
The fieldCompare these two →0:26 slower This athlete1:06 faster -
London Excel4 Dec 2025Doubles Open · Women1:38:321350/1599Beat 16%
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London Excel4 Dec 2025Individual Open · Women1:18:35201/1379Beat 85%