Progress against the field
Mary Ann Nicklow has dropped 1:43 behind the field from Washington - North American Championships 2024 to Boston 2025.
The races themselves barely changed, so 1:43 slower on the clock is the real picture.
The longest gap between two races compared here, 307 days between Dallas 2024 and Boston 2025, cost 4:30 on 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 · 6 events
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Miami3 Apr 2026Individual Pro · Women1:36:12 PB149/253Beat 41%
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Boston26 Sep 2025Individual Open · Women1:35:55659/1290Beat 49%
↑ 307 days after Dallas 2024 4:30 worse than the field Why ↓Close ↑
0:48 slower on the clock in a race that was 3:42 faster for everyone: 4:30 lost to the field.
The fieldCompare these two →3:42 faster This athlete0:48 slower -
Dallas23 Nov 2024Individual Open · Women1:35:07261/620Beat 58%
↑ 175 days after New York 2024 7:20 better than the field Why ↓Close ↑
6:18 faster on the clock in a race that was 1:02 slower for everyone: 7:20 better than the field.
The fieldCompare these two →1:02 slower This athlete6:18 faster -
New York1 Jun 2024Individual Open · Women1:41:25329/592Beat 44%
↑ 91 days after Washington - North American Championships 2024 4:33 worse than the field Why ↓Close ↑
4:33 behind the field: 7:13 slower on the clock, against 2:40 slower for everyone.
The fieldCompare these two →2:40 slower This athlete7:13 slower -
Washington - North American Championships2 Mar 2024Individual Open · Women1:34:12 PB155/271Beat 43%
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Washington D.C. Open North American ChampionshipsDate unknownIndividual Open · Women1:34:54490/893Beat 45%