Progress against the field
From Chicago - North American Open Championship 2023 to Chicago 2023, Courtney Wells got 1:29 faster than the field.
Over the same races everyone got 2:17 quicker, so 3:46 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
3 races · 3 events
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Chicago14 Nov 2025Individual Pro · Women1:36:50 PB143/194Beat 26%
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Chicago11 Nov 2023Individual Open · Women1:36:34 PB177/299Beat 41%
↑ 273 days after Chicago - North American Open Championship 2023 1:29 better than the field Why ↓Close ↑
3:46 faster on the clock, and the race was 2:17 faster for everyone, so 1:29 of it was this athlete.
The fieldCompare these two →2:17 faster This athlete3:46 faster -
Chicago - North American Open Championship11 Feb 2023Individual Open · Women1:40:20139/195Beat 29%