Progress against the field
Between New York 2024 and Boston 2026, Andy Brown pulled 9:37 ahead of the field.
Over the same races everyone got 9:36 quicker, so 19:13 faster on the clock looks better than it was.
377 days between Boston 2025 and Boston 2026 is the longest gap compared here, and the second race was 1:45 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
6 races · 6 events
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Boston8 Oct 2026Individual Open · Men1:30:51582/1233Beat 53%
↑ 377 days after Boston 2025 1:45 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:05 faster on the clock looks better than it was: the race was 2:50 faster for everyone, which leaves this 1:45 behind the field.
The fieldCompare these two →2:50 faster This athlete1:05 faster -
Boston26 Sep 2025Individual Open · Men1:31:56838/1463Beat 43%
↑ 119 days after New York 2025 4:02 worse than the field Why ↓Close ↑
2:27 slower on the clock in a race that was 1:35 faster for everyone: 4:02 lost to the field.
The fieldCompare these two →1:35 faster This athlete2:27 slower -
New York30 May 2025Individual Open · Men1:29:29 PB866/1462Beat 41%
↑ 195 days after Chicago Navy Pier 2024 5:41 better than the field Why ↓Close ↑
5:41 better than the field: 8:55 faster on the clock, against 3:14 faster for everyone.
The fieldCompare these two →3:14 faster This athlete8:55 faster -
Chicago Navy Pier16 Nov 2024Individual Open · Men1:38:24582/814Beat 29%
↑ 168 days after New York 2024 9:43 better than the field Why ↓Close ↑
9:43 better than the field: 11:40 faster on the clock, against 1:57 faster for everyone.
The fieldCompare these two →1:57 faster This athlete11:40 faster -
New York1 Jun 2024Individual Open · Men1:50:04756/895Beat 16%
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Washington D.C. Open North American ChampionshipsDate unknownIndividual Open · Men1:39:201106/1544Beat 28%