Progress against the field
Between Las Vegas 2026 and Boston 2026, Jason MacLean lost 1:02 to the field.
The clock says 3:24 faster, but the races themselves got 4:26 quicker for everyone.
The largest gain on the field came from Las Vegas 2026 → New York 2026: 8:39 in 97 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
3 races · 3 events
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Boston8 Oct 2026Individual Open · Men1:51:211019/1233Beat 17%
↑ 133 days after New York 2026 9:41 worse than the field Why ↓Close ↑
8:18 slower on the clock in a race that was 1:23 faster for everyone: 9:41 lost to the field.
The fieldCompare these two →1:23 faster This athlete8:18 slower -
New York28 May 2026Individual Open · Men1:43:03 PB670/1046Beat 36%
↑ 97 days after Las Vegas 2026 8:39 better than the field Why ↓Close ↑
11:42 faster on the clock, and the race was 3:03 faster for everyone, so 8:39 of it was this athlete.
The fieldCompare these two →3:03 faster This athlete11:42 faster -
Las Vegas20 Feb 2026Individual Open · Men1:54:451468/1739Beat 16%