Progress against the field
From Boston 2025 to Boston 2026, Chris MacDonald got 12:20 faster than the field.
Over the same races everyone got 5:33 quicker, so 17:53 faster on the clock looks better than it was.
230 days between Las Vegas 2026 and Boston 2026 is the longest gap compared here, and the second race was 1:50 better than 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.
Every race
3 races · 3 events
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Boston8 Oct 2026Individual Open · Men1:22:13 PB325/1233Beat 74%
↑ 230 days after Las Vegas 2026 1:50 better than the field Why ↓Close ↑
1:50 better than the field: 4:21 faster on the clock, against 2:31 faster for everyone.
The fieldCompare these two →2:31 faster This athlete4:21 faster -
Las Vegas20 Feb 2026Individual Open · Men1:26:34644/1739Beat 63%
↑ 147 days after Boston 2025 10:30 better than the field Why ↓Close ↑
10:30 better than the field: 13:32 faster on the clock, against 3:02 faster for everyone.
The fieldCompare these two →3:02 faster This athlete13:32 faster -
Boston26 Sep 2025Individual Open · Men1:40:061059/1463Beat 28%