Progress against the field
From Birmingham 2025 to Birmingham 2026, Zac Smith and Charlotte Martin have moved with the field: what changed on the clock changed for everyone.
The clock says 3:24 faster, but the races themselves got 3:36 quicker for everyone.
189 days between Birmingham 2025 and Cardiff 2026 is the longest gap compared here, and the second race was 3:56 behind the field.
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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Birmingham31 Oct 2026Doubles Open · Mixed1:19:01 PB131/293Beat 55%
↑ 185 days after Cardiff 2026, with Charlotte Martin 3:44 better than the field Why ↓Close ↑
3:44 better than the field: 5:21 faster on the clock, against 1:37 faster for everyone.
The fieldCompare these two →1:37 faster This pair5:21 faster -
Cardiff29 Apr 2026Doubles Open · Mixed1:24:22510/848Beat 40%
↑ 189 days after Birmingham 2025, with Charlotte Martin 3:56 worse than the field Why ↓Close ↑
3:56 behind the field: 1:57 slower on the clock, against 1:59 faster for everyone.
The fieldCompare these two →1:59 faster This pair1:57 slower -
London Excel4 Dec 2025Doubles Open · Men1:11:19 PB1046/2102Beat 50%
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Birmingham22 Oct 2025Doubles Open · Mixed1:22:25577/954Beat 40%