Progress against the field
Natalie Porter has gained 39:42 on the field from Chicago 2025 to Boston 2026.
The clock says 41:00 faster, but the races themselves got 1:18 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
3 races · 3 events
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Boston8 Oct 2026Individual Open · Women1:21:23 PB79/722Beat 89%
↑ 328 days after Chicago 2025 39:42 better than the field Why ↓Close ↑
41:00 faster on the clock, and the race was 1:18 faster for everyone, so 39:42 of it was this athlete.
The fieldCompare these two →1:18 faster This athlete41:00 faster -
New York28 May 2026Doubles Open · Women1:29:48 PB184/722Beat 75%
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Chicago14 Nov 2025Individual Open · Women2:02:231017/1127Beat 10%