Progress against the field
From Las Vegas 2025 to Boston 2025, Alan Espinoza got 9:18 faster than the field.
Over the same races everyone got 5:49 quicker, so 15:07 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
2 races · 2 events
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Boston26 Sep 2025Individual Open · Men1:22:40 PB488/1463Beat 67%
↑ 237 days after Las Vegas 2025 9:18 better than the field Why ↓Close ↑
9:18 better than the field: 15:07 faster on the clock, against 5:49 faster for everyone.
The fieldCompare these two →5:49 faster This athlete15:07 faster -
Las Vegas1 Feb 2025Individual Open · Men1:37:47284/462Beat 39%