Progress against the field
Between Chicago Navy Pier 2024 and Houston 2025, Brian Doerrfeld lost 0:25 to the field.
The races themselves barely changed, so 0:31 slower on the clock is the real picture.
The biggest step was Las Vegas 2025 → Houston 2025: 10:43 on the field in 42 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
10 races · 10 events
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New York28 May 2026Individual Pro · Men1:13:0990/455Beat 80%
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Phoenix29 Jan 2026Individual Open · Men1:07:22 PB53/947Beat 94%
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Chicago14 Nov 2025Individual Pro · MenDNF—
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Boston26 Sep 2025Individual Pro · MenDNF—
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Houston15 Mar 2025Individual Pro · Men1:11:4552/226Beat 77%
↑ 42 days after Las Vegas 2025 10:43 better than the field Why ↓Close ↑
11:59 faster on the clock, and the race was 1:16 faster for everyone, so 10:43 of it was this athlete.
The fieldCompare these two →1:16 faster This athlete11:59 faster -
Las Vegas1 Feb 2025Individual Pro · Men1:23:44125/213Beat 41%
↑ 77 days after Chicago Navy Pier 2024 11:08 worse than the field Why ↓Close ↑
12:30 slower on the clock in a race that was 1:22 slower for everyone: 11:08 lost to the field.
The fieldCompare these two →1:22 slower This athlete12:30 slower -
Dallas23 Nov 2024Individual Pro · MenDNF—
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Chicago Navy Pier16 Nov 2024Individual Pro · Men1:11:14 PB65/199Beat 67%
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Houston16 Mar 2024Individual Pro · Men1:19:2930/82Beat 63%
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Chicago11 Nov 2023Individual Pro · Men1:16:3252/113Beat 54%