Progress against the field
Between Boston 2025 and Washington DC 2026, Brian De Leon lost 0:35 to the field.
The clock says 5:56 faster, but the races themselves got 6:31 quicker for everyone.
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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Washington DC3 Sep 2026Individual Open · Men1:09:40 PB94/1462Beat 94%
↑ 153 days after Miami 2026 0:01 better than the field Why ↓Close ↑
3:27 faster on the clock, and the race was 3:26 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →3:26 faster This athlete3:27 faster -
Miami3 Apr 2026Individual Open · Men1:13:07171/1462Beat 88%
↑ 189 days after Boston 2025 0:36 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:29 faster on the clock, yet the race was 3:05 faster for everyone, so 0:36 was lost on the field.
The fieldCompare these two →3:05 faster This athlete2:29 faster -
Boston26 Sep 2025Individual Open · Men1:15:36222/1463Beat 85%