Progress against the field
Between Chicago 2023 and Boston 2026, Jeffrey Dorsey pulled 5:54 ahead of the field.
Over the same races everyone got 11:37 quicker, so 17:31 faster on the clock looks better than it was.
356 days between Toronto 2024 and Boston 2025 is the longest gap compared here, and the second race was 27:42 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
8 races · 8 events
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Boston8 Oct 2026Individual Open · Men1:33:40665/1233Beat 46%
↑ 133 days after New York 2026 10:46 worse than the field Why ↓Close ↑
9:23 slower on the clock in a race that was 1:23 faster for everyone: 10:46 lost to the field.
The fieldCompare these two →1:23 faster This athlete9:23 slower -
New York28 May 2026Individual Open · Men1:24:17 PB175/556Beat 69%
↑ 244 days after Boston 2025 24:09 better than the field Why ↓Close ↑
24:09 better than the field: 26:13 faster on the clock, against 2:04 faster for everyone.
The fieldCompare these two →2:04 faster This athlete26:13 faster -
Boston26 Sep 2025Individual Open · Men1:50:301235/1463Beat 16%
↑ 356 days after Toronto 2024 27:42 worse than the field Why ↓Close ↑
25:15 slower on the clock in a race that was 2:27 faster for everyone: 27:42 lost to the field.
The fieldCompare these two →2:27 faster This athlete25:15 slower -
Toronto5 Oct 2024Individual Open · Men1:25:15137/416Beat 67%
↑ 126 days after New York 2024 0:52 worse than the field Why ↓Close ↑
0:30 slower on the clock in a race that was 0:22 faster for everyone: 0:52 lost to the field.
The fieldCompare these two →0:22 faster This athlete0:30 slower -
New York1 Jun 2024Individual Open · Men1:24:45350/895Beat 61%
↑ 91 days after Washington - North American Championships 2024 5:55 better than the field Why ↓Close ↑
8:11 faster on the clock, and the race was 2:16 faster for everyone, so 5:55 of it was this athlete.
The fieldCompare these two →2:16 faster This athlete8:11 faster -
Washington - North American Championships2 Mar 2024Individual Open · Men1:32:56332/498Beat 33%
↑ 112 days after Chicago 2023 15:10 better than the field Why ↓Close ↑
15:10 better than the field: 18:15 faster on the clock, against 3:05 faster for everyone.
The fieldCompare these two →3:05 faster This athlete18:15 faster -
Chicago11 Nov 2023Individual Open · Men1:51:11405/469Beat 14%
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New York1 Oct 2022Individual Pro · Men1:59:05 PB86/90Beat 4%