Progress against the field
Keith Brennan has dropped 6:40 behind the field from New York 2024 to Chicago 2025.
The clock says 2:49 faster, but the races themselves got 9:29 quicker for everyone.
The largest gain on the field came from Houston 2025 → New York 2025: 14:16 in 76 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
8 races · 7 events
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Chicago14 Nov 2025Individual Open · Men1:52:311352/1621Beat 17%
↑ 49 days after Boston 2025 2:53 worse than the field Why ↓Close ↑
2:53 behind the field: 1:39 slower on the clock, against 1:14 faster for everyone.
The fieldCompare these two →1:14 faster This athlete1:39 slower -
Boston26 Sep 2025Doubles Open · Men1:29:07 PB595/734Beat 19%
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Boston26 Sep 2025Individual Open · Men1:50:52 PB1241/1463Beat 15%
↑ 119 days after New York 2025 3:19 better than the field Why ↓Close ↑
4:54 faster on the clock, and the race was 1:35 faster for everyone, so 3:19 of it was this athlete.
The fieldCompare these two →1:35 faster This athlete4:54 faster -
New York30 May 2025Individual Open · Men1:55:46370/403Beat 8%
↑ 76 days after Houston 2025 14:16 better than the field Why ↓Close ↑
19:21 faster on the clock, and the race was 5:05 faster for everyone, so 14:16 of it was this athlete.
The fieldCompare these two →5:05 faster This athlete19:21 faster -
Houston15 Mar 2025Individual Open · Men2:15:07965/1005Beat 4%
↑ 119 days after Chicago Navy Pier 2024 14:12 worse than the field Why ↓Close ↑
14:12 behind the field: 14:34 slower on the clock, against 0:22 slower for everyone.
The fieldCompare these two →0:22 slower This athlete14:34 slower -
Chicago Navy Pier16 Nov 2024Individual Open · Men2:00:33748/814Beat 8%
↑ 168 days after New York 2024 7:10 worse than the field Why ↓Close ↑
5:13 slower on the clock in a race that was 1:57 faster for everyone: 7:10 lost to the field.
The fieldCompare these two →1:57 faster This athlete5:13 slower -
New York1 Jun 2024Individual Open · Men1:55:20787/895Beat 12%
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Washington D.C. Open North American ChampionshipsDate unknownIndividual Open · Men2:14:541506/1544Beat 3%