Progress against the field
Martyn Mason has dropped 0:24 behind the field from Boston 2025 to Boston 2026.
Over the same races everyone got 5:33 quicker, so 5:09 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 5:13 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 · Men1:23:25 PB350/1233Beat 72%
↑ 230 days after Las Vegas 2026 5:13 better than the field Why ↓Close ↑
5:13 better than the field: 7:44 faster on the clock, against 2:31 faster for everyone.
The fieldCompare these two →2:31 faster This athlete7:44 faster -
Las Vegas20 Feb 2026Individual Open · Men1:31:09830/1739Beat 52%
↑ 147 days after Boston 2025 5:37 worse than the field Why ↓Close ↑
5:37 behind the field: 2:35 slower on the clock, against 3:02 faster for everyone.
The fieldCompare these two →3:02 faster This athlete2:35 slower -
Boston26 Sep 2025Individual Open · Men1:28:34719/1463Beat 51%