The race, in three figures
The race, in words
Marcin Serafin finished 1,113th of 1,463 men in the Open division at Boston 2025, in 1:42:54.
A station race more than a running one: 48% of the field beaten on the stations, against 10% on the runs. On the sled push the field had the edge, by 1:16. The race faded late: the second half went 4:15 worse against the middle of the field than the first.
The field ran 5:49 faster at Boston 2025 than at Las Vegas 2025, a quicker course than most.
Eight blocks
Bar = field beaten · tick = median
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Block 01 11:26Running 1 6:58v median +1:06
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Block 02 9:39Running 2 5:44v median +0:52
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Block 03 11:38Running 3 6:02v median +0:45
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Block 04 11:08Running 4 6:46v median +1:31
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Block 05 11:42Running 5 6:42v median +1:15
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Block 06 8:31Running 6 6:49v median +1:31
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Block 07 13:21Running 7 6:59v median +1:45
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Block 08 17:34Running 8 10:06v median +4:07
Roxzone, per block
Approach · Exit 8:03
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.