Progress against the field
Jill Holsclaw has dropped 18:51 behind the field from Chicago 2025 to Boston 2026.
Over the same races everyone got 1:31 quicker, so 17:20 slower on the clock looks better than it was.
195 days between Chicago 2025 and New York 2026 is the longest gap compared here, and the second race was 12:36 behind 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
3 races · 3 events
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Boston8 Oct 2026Individual Open · Women2:02:21407/475Beat 14%
↑ 133 days after New York 2026 6:15 worse than the field Why ↓Close ↑
2:20 slower on the clock in a race that was 3:55 faster for everyone: 6:15 lost to the field.
The fieldCompare these two →3:55 faster This athlete2:20 slower -
New York28 May 2026Individual Open · Women2:00:01779/1061Beat 27%
↑ 195 days after Chicago 2025 12:36 worse than the field Why ↓Close ↑
12:36 behind the field: 15:00 slower on the clock, against 2:24 slower for everyone.
The fieldCompare these two →2:24 slower This athlete15:00 slower -
Chicago14 Nov 2025Individual Open · Women1:45:01 PB826/1127Beat 27%