Progress against the field
Between Boston 2025 and Washington DC 2026, Jim Spurlock pulled 3:17 ahead of the field.
The clock says 8:09 faster, but the races themselves got 4:52 quicker for everyone.
The longest gap between two races compared here, 217 days between Phoenix 2026 and Washington DC 2026, still ended 3:26 ahead of 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. The summary above covers Individual Pro · Men, the one raced most; every comparison is in the list below.
Every race
7 races · 7 events
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Washington DC3 Sep 2026Individual Pro · Men1:54:16 PB349/378Beat 8%
↑ 217 days after Phoenix 2026 3:26 better than the field Why ↓Close ↑
3:26 better than the field: 6:40 faster on the clock, against 3:14 faster for everyone.
The fieldCompare these two →3:14 faster This athlete6:40 faster -
Miami3 Apr 2026Individual Open · Men1:47:57 PB1203/1462Beat 18%
↑ 671 days after New York 2024 32:48 better than the field Why ↓Close ↑
32:48 better than the field: 35:47 faster on the clock, against 2:59 faster for everyone.
The fieldCompare these two →2:59 faster This athlete35:47 faster -
Phoenix29 Jan 2026Individual Pro · Men2:00:56615/634Beat 3%
↑ 125 days after Boston 2025 0:09 worse than the field Why ↓Close ↑
1:29 faster on the clock, and the race was 1:38 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →1:38 faster This athlete1:29 faster -
Boston26 Sep 2025Individual Pro · Men2:02:25245/249Beat 2%
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Dallas23 Nov 2024Individual Pro · Men2:23:48208/210Beat 1%
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New York1 Jun 2024Individual Open · Men2:23:44875/895Beat 2%
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Washington D.C. Open North American ChampionshipsDate unknownIndividual Open · Men1:55:451394/1544Beat 10%