Progress against the field
From Birmingham 2025 to London Olympia 2026, Jo Greenfield has moved with the field: what changed on the clock changed for everyone.
Over the same races everyone got 4:23 quicker, so 4:14 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
5 races · 5 events
-
Birmingham31 Oct 2026Doubles Pro · Women1:22:51 PB232/301Beat 23%
-
London Olympia24 Mar 2026Individual Open · Women1:48:47 PB442/581Beat 24%
↑ 153 days after Birmingham 2025 0:09 worse than the field Why ↓Close ↑
Moved with the field: 4:14 faster on the clock, against 4:23 faster for everyone.
The fieldCompare these two →4:23 faster This athlete4:14 faster -
Glasgow11 Mar 2026Doubles Open · Women1:33:46 PB1027/1618Beat 37%
-
Birmingham22 Oct 2025Individual Open · Women1:53:01620/748Beat 17%
-
Paris 118 Apr 2025Doubles Open · Mixed1:31:47 PB409/491Beat 17%