Progress against the field
From Washington DC 2026 to Boston 2026, Ken Mizushima got 4:22 faster than the field.
The clock says 2:33 faster, but the races themselves got 1:49 slower 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 Pro · Men, the one raced most; every comparison is in the list below.
Every race
8 races · 7 events
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Boston8 Oct 2026Individual Pro · Men1:55:42321/339Beat 5%
↑ 35 days after Washington DC 2026 4:22 better than the field Why ↓Close ↑
The race was 1:49 slower for everyone and the clock still says 2:33 faster: 4:22 gained on the field.
The fieldCompare these two →1:49 slower This athlete2:33 faster -
Washington DC3 Sep 2026Doubles Open · Mixed1:21:18 PB179/654Beat 73%
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Washington DC3 Sep 2026Individual Pro · Men1:58:15355/378Beat 6%
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Stockholm18 Jun 2026Individual Pro · Men2:00:35764/767Beat 0%
↑ 21 days after New York 2026 6:48 better than the field Why ↓Close ↑
6:11 faster on the clock in a race that was 0:37 slower for everyone: 6:48 better than the field.
The fieldCompare these two →0:37 slower This athlete6:11 faster -
New York28 May 2026Individual Pro · Men2:06:46435/455Beat 4%
↑ 167 days after Anaheim 2025 8:40 better than the field Why ↓Close ↑
The race was 0:19 slower for everyone and the clock still says 8:21 faster: 8:40 gained on the field.
The fieldCompare these two →0:19 slower This athlete8:21 faster -
Anaheim12 Dec 2025Individual Pro · Men2:15:07261/265Beat 2%
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Boston26 Sep 2025Individual Pro · Men1:53:50 PB242/249Beat 3%
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Washington D.C. Open North American ChampionshipsDate unknownDoubles Open · Men1:31:34 PB692/795Beat 13%