Progress against the field
From Atlanta 2025 to Houston 2026, Chelsea Harrison has moved with the field: what changed on the clock changed for everyone.
The clock says 4:26 faster, but the races themselves got 4:27 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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Houston26 Mar 2026Individual Open · Women1:43:11 PB205/386Beat 47%
↑ 146 days after Atlanta 2025 0:01 worse than the field Why ↓Close ↑
4:26 faster on the clock, and the race was 4:27 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →4:27 faster This athlete4:26 faster -
Atlanta31 Oct 2025Individual Open · Women1:47:37432/660Beat 35%