Progress against the field
From Boston 2025 to Boston 2026, Derick Yu got 8:19 faster than the field.
The clock says 11:09 faster, but the races themselves got 2:50 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. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
4 races · 4 events
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Boston8 Oct 2026Individual Open · Men1:58:31 PB1097/1233Beat 11%
↑ 377 days after Boston 2025 8:19 better than the field Why ↓Close ↑
11:09 faster on the clock, and the race was 2:50 faster for everyone, so 8:19 of it was this athlete.
The fieldCompare these two →2:50 faster This athlete11:09 faster -
Washington DC3 Sep 2026Doubles Open · Mixed1:39:00 PB898/1230Beat 27%
↑ 293 days after Chicago 2025, with Kathy Nguyen 0:20 worse than the field Faster on the clock, behind the field Why ↓Close ↑
3:52 faster on the clock looks better than it was: the race was 4:12 faster for everyone, which leaves this 0:20 behind the field.
The fieldCompare these two →4:12 faster This pair3:52 faster -
Chicago14 Nov 2025Doubles Open · Mixed1:42:521039/1179Beat 12%
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Boston26 Sep 2025Individual Open · Men2:09:401396/1463Beat 5%