Progress against the field
Billy Curtin has gained 9:45 on the field from Boston 2025 to Boston 2026.
The clock says 16:00 faster, but the races themselves got 6:15 quicker for everyone.
The biggest step was Boston 2025 → Phoenix 2026: 14:30 on the field in 125 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
6 races · 4 events
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Boston8 Oct 2026Doubles Open · Mixed1:15:22 PB68/373Beat 82%
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Boston8 Oct 2026Individual Open · Men1:23:33352/1233Beat 72%
↑ 133 days after New York 2026 5:38 worse than the field Why ↓Close ↑
4:15 slower on the clock in a race that was 1:23 faster for everyone: 5:38 lost to the field.
The fieldCompare these two →1:23 faster This athlete4:15 slower -
Boston8 Oct 2026Relay · Men1:28:5848/57Beat 16%
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New York28 May 2026Individual Open · Men1:19:18 PB323/1067Beat 70%
↑ 119 days after Phoenix 2026 0:53 better than the field Why ↓Close ↑
4:03 faster on the clock, and the race was 3:10 faster for everyone, so 0:53 of it was this athlete.
The fieldCompare these two →3:10 faster This athlete4:03 faster -
Phoenix29 Jan 2026Individual Open · Men1:23:21377/947Beat 60%
↑ 125 days after Boston 2025 14:30 better than the field Why ↓Close ↑
16:12 faster on the clock, and the race was 1:42 faster for everyone, so 14:30 of it was this athlete.
The fieldCompare these two →1:42 faster This athlete16:12 faster -
Boston26 Sep 2025Individual Open · Men1:39:331050/1463Beat 28%