Progress against the field
Between London 2025 and London Olympia 2026, Alan Chalmers and Lauren Butler pulled 3:50 ahead of the field.
The clock says 5:42 faster, but the races themselves got 1:52 quicker for everyone.
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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Cardiff29 Apr 2026Relay · Men1:18:4142/53Beat 21%
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London Olympia24 Mar 2026Doubles Open · Mixed1:27:06 PB132/213Beat 38%
↑ 325 days after London 2025, with Lauren Butler 3:50 better than the field Why ↓Close ↑
3:50 better than the field: 5:42 faster on the clock, against 1:52 faster for everyone.
The fieldCompare these two →1:52 faster This pair5:42 faster -
Dublin12 Nov 2025Doubles Open · Men1:30:43 PB619/667Beat 7%
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London3 May 2025Doubles Open · Mixed1:32:48851/956Beat 11%