Progress against the field
Kai Clark has gained 4:14 on the field from Birmingham 2023 to Birmingham 2025.
Over the same races everyone got 6:24 quicker, so 10:38 faster on the clock looks better than it was.
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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London Excel4 Dec 2025Doubles Open · Men58:50 PB118/2102Beat 94%
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Birmingham22 Oct 2025Individual Open · Men1:09:28 PB222/1821Beat 88%
↑ 732 days after Birmingham 2023 4:14 better than the field Why ↓Close ↑
4:14 better than the field: 10:38 faster on the clock, against 6:24 faster for everyone.
The fieldCompare these two →6:24 faster This athlete10:38 faster -
Birmingham21 Oct 2023Individual Open · Men1:20:06340/1182Beat 71%
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Madrid23 Sep 2023Individual Open · Men1:24:03290/568Beat 49%