Progress against the field
Jack Chambers has gained 3:37 on the field from Cardiff 2026 to Birmingham 2026.
Over the same races everyone got 1:43 quicker, so 5:20 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
3 races · 3 events
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Birmingham31 Oct 2026Individual Open · Men1:18:41 PB246/646Beat 62%
↑ 185 days after Cardiff 2026 3:37 better than the field Why ↓Close ↑
5:20 faster on the clock, and the race was 1:43 faster for everyone, so 3:37 of it was this athlete.
The fieldCompare these two →1:43 faster This athlete5:20 faster -
Cardiff29 Apr 2026Individual Open · Men1:24:01229/456Beat 50%
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Toronto5 Oct 2024Doubles Open · Mixed1:06:35 PB18/254Beat 93%