Progress against the field
Between Birmingham 2025 and London Olympia 2026, Natasha Turley and Ella Delderfield lost 1:32 to the field.
The clock says 1:10 faster, but the races themselves got 2:42 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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London Olympia24 Mar 2026Doubles Open · Women1:09:02 PB13/404Beat 97%
↑ 153 days after Birmingham 2025, with Ella Delderfield 1:32 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:10 faster on the clock, yet the race was 2:42 faster for everyone, so 1:32 was lost on the field.
The fieldCompare these two →2:42 faster This pair1:10 faster -
Birmingham22 Oct 2025Doubles Open · Women1:10:1226/411Beat 94%