Progress against the field
Between New York 2024 and Boston 2025, Lori Shapiro pulled 2:17 ahead of the field.
The clock says 8:48 faster, but the races themselves got 6:31 quicker for everyone.
The biggest step was New York 2024 → Chicago Navy Pier 2024: 2:10 on the field in 168 days.
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
9 races · 8 events
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Boston8 Oct 2026Doubles Open · Women1:16:1482/691Beat 88%
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New York28 May 2026Doubles Open · Women1:12:30 PB71/1144Beat 94%
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New York28 May 2026Individual Open · Women1:24:40120/1061Beat 89%
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London Excel4 Dec 2025Individual Open · Women1:20:44 PB253/1379Beat 82%
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Toronto3 Oct 2025Doubles Open · Women1:18:5878/821Beat 91%
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Boston26 Sep 2025Individual Open · Women1:26:37351/1290Beat 73%
↑ 314 days after Chicago Navy Pier 2024 0:07 better than the field Why ↓Close ↑
0:56 faster on the clock, and the race was 0:49 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →0:49 faster This athlete0:56 faster -
New York30 May 2025Doubles Open · Women1:17:14166/830Beat 80%
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Chicago Navy Pier16 Nov 2024Individual Open · Women1:27:33205/599Beat 66%
↑ 168 days after New York 2024 2:10 better than the field Why ↓Close ↑
7:52 faster on the clock, and the race was 5:42 faster for everyone, so 2:10 of it was this athlete.
The fieldCompare these two →5:42 faster This athlete7:52 faster -
New York1 Jun 2024Individual Open · Women1:35:25253/592Beat 57%