Progress against the field
Leah Ayres has gained 4:23 on the field from Boston 2025 to Boston 2026.
The clock says 8:34 faster, but the races themselves got 4:11 quicker for everyone.
The longest gap between two races compared here, 328 days between Chicago 2025 and Boston 2026, still ended 5:23 ahead of the field.
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
6 races · 5 events
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Boston8 Oct 2026Relay · Mixed58:003/85Beat 97%
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Boston8 Oct 2026Individual Open · Women1:10:07 PB3/722Beat 100%
↑ 328 days after Chicago 2025 5:23 better than the field Why ↓Close ↑
5:23 better than the field: 6:41 faster on the clock, against 1:18 faster for everyone.
The fieldCompare these two →1:18 faster This athlete6:41 faster -
New York28 May 2026Relay · Women1:06:095/155Beat 97%
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Chicago14 Nov 2025Individual Open · Women1:16:4897/1127Beat 91%
↑ 49 days after Boston 2025 1:00 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:53 faster on the clock looks better than it was: the race was 2:53 faster for everyone, which leaves this 1:00 behind the field.
The fieldCompare these two →2:53 faster This athlete1:53 faster -
Boston26 Sep 2025Individual Open · Women1:18:41134/1290Beat 90%
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New York30 May 2025Doubles Open · Mixed1:17:27 PB250/709Beat 65%