Progress against the field
Michelle Sibrizzi has gained 12:08 on the field from New York 2024 to Boston 2026.
Over the same races everyone got 12:16 quicker, so 24:24 faster on the clock looks better than it was.
The longest gap between two races compared here, 363 days between New York 2024 and New York 2025, still ended 13:00 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
7 races · 6 events
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Boston8 Oct 2026Individual Open · Women1:13:4916/475Beat 97%
↑ 35 days after Washington DC 2026 1:23 worse than the field Why ↓Close ↑
0:46 slower on the clock in a race that was 0:37 faster for everyone: 1:23 lost to the field.
The fieldCompare these two →0:37 faster This athlete0:46 slower -
Washington DC3 Sep 2026Individual Open · Women1:13:03 PB29/1029Beat 97%
↑ 98 days after New York 2026 3:19 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:25 faster on the clock looks better than it was: the race was 5:44 faster for everyone, which leaves this 3:19 behind the field.
The fieldCompare these two →5:44 faster This athlete2:25 faster -
New York28 May 2026Individual Open · Women1:15:2824/1061Beat 98%
↑ 244 days after Boston 2025 2:38 better than the field Why ↓Close ↑
The race was 0:33 slower for everyone and the clock still says 2:05 faster: 2:38 gained on the field.
The fieldCompare these two →0:33 slower This athlete2:05 faster -
New York28 May 2026Individual Open · Women1:17:0034/1098Beat 97%
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Boston26 Sep 2025Individual Open · Women1:17:33115/1290Beat 91%
↑ 119 days after New York 2025 1:12 better than the field Why ↓Close ↑
3:33 faster on the clock, and the race was 2:21 faster for everyone, so 1:12 of it was this athlete.
The fieldCompare these two →2:21 faster This athlete3:33 faster -
New York30 May 2025Individual Open · Women1:21:06151/781Beat 81%
↑ 363 days after New York 2024 13:00 better than the field Why ↓Close ↑
17:07 faster on the clock, and the race was 4:07 faster for everyone, so 13:00 of it was this athlete.
The fieldCompare these two →4:07 faster This athlete17:07 faster -
New York1 Jun 2024Individual Open · Women1:38:13284/592Beat 52%