Progress against the field
From London Excel 2025 to Birmingham 2026, Aimee Zimmerman and Chloe Zimmerman got 1:22 faster than the field.
The clock says 3:05 faster, but the races themselves got 1:43 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
2 races · 2 events
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Birmingham31 Oct 2026Doubles Open · Women1:04:53 PB23/1246Beat 98%
↑ 331 days after London Excel 2025, with Chloe Zimmerman 1:22 better than the field Why ↓Close ↑
1:22 better than the field: 3:05 faster on the clock, against 1:43 faster for everyone.
The fieldCompare these two →1:43 faster This pair3:05 faster -
London Excel4 Dec 2025Doubles Open · Women1:07:5857/1599Beat 96%