Progress against the field
Between New York 2025 and Boston 2025, Jacob Boylan pulled 6:49 ahead of the field.
Over the same races everyone got 1:35 quicker, so 8:24 faster on the clock looks better than it was.
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
4 races · 3 events
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Boston8 Oct 2026Doubles Open · Men1:28:03 PB284/459Beat 38%
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Boston26 Sep 2025Doubles Open · Mixed1:26:24 PB760/1259Beat 40%
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Boston26 Sep 2025Individual Open · Men1:22:13 PB473/1463Beat 68%
↑ 119 days after New York 2025 6:49 better than the field Why ↓Close ↑
6:49 better than the field: 8:24 faster on the clock, against 1:35 faster for everyone.
The fieldCompare these two →1:35 faster This athlete8:24 faster -
New York30 May 2025Individual Open · Men1:30:37228/403Beat 43%