The race, in three figures
The race, in words
Hayden Kjelleren finished 227th of 1,463 men in the Open division at Boston 2025, in 1:15:47, faster than 85% of the field.
Legs and stations told different stories: 96% of the field beaten on the runs, 53% on the stations. On the wall balls the field had the edge, by 3:55. A harder second half: 5:58 more lost to the middle of the field after halfway than before it.
Boston gave the field time back: about 2:03 faster than the average race this season, by 807 athletes who raced both.
Eight blocks
Bar = field beaten · tick = median
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Block 01 8:11Running 1 4:10v median −1:42
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Block 02 6:06Running 2 3:45v median −1:07
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Block 03 7:35Running 3 4:06v median −1:11
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Block 04 9:14Running 4 3:58v median −1:17
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Block 05 8:51Running 5 4:22v median −1:05
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Block 06 5:55Running 6 3:58v median −1:20
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Block 07 8:21Running 7 3:51v median −1:23
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Block 08 16:37Running 8 4:49v median −1:10
Roxzone, per block
Approach · Exit 5:09
Against the middle of your field
Men · n = 1443
A pace, not a person: at every mat, the middle of the 1,443 men who finished.