Progress against the field
From Birmingham 2025 to London Olympia 2026, Jane Jiang got 9:40 faster than the field.
Over the same races everyone got 4:28 quicker, so 14:08 faster on the clock looks better than it was.
The largest gain on the field came from London Excel 2025 → London Olympia 2026: 11:40 in 110 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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Paris GP23 Apr 2026Individual Open · Women1:36:35372/785Beat 53%
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London Olympia24 Mar 2026Relay · Women1:12:1126/144Beat 82%
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London Olympia24 Mar 2026Individual Open · Women1:22:09 PB121/581Beat 79%
↑ 110 days after London Excel 2025 11:40 better than the field Why ↓Close ↑
13:04 faster on the clock, and the race was 1:24 faster for everyone, so 11:40 of it was this athlete.
The fieldCompare these two →1:24 faster This athlete13:04 faster -
London Excel4 Dec 2025Individual Open · Women1:35:13985/1542Beat 36%
↑ 43 days after Birmingham 2025 2:00 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:04 faster on the clock, yet the race was 3:04 faster for everyone, so 2:00 was lost on the field.
The fieldCompare these two →3:04 faster This athlete1:04 faster -
Birmingham22 Oct 2025Individual Open · Women1:36:17425/748Beat 43%
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Singapore28 Jun 2025Individual Open · Women1:46:23426/778Beat 45%
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London3 May 2025Individual Open · Women1:47:441107/1368Beat 19%