The race, in three figures
The race, in words
Sarah O'Brien finished 862nd of 1,290 women in the Open division at Boston 2025, in 1:44:33.
On the wall balls the field had the edge, by 4:05. The race faded late: the second half went 6:44 worse against the middle of the field than the first.
Boston ran fast: the 670 athletes who also raced elsewhere this season were about 2:20 quicker here than at their other races. 28:01 slower than at Washington - North American Championships 2024, the previous Open race.
Eight blocks
Bar = field beaten · tick = median
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Block 01 11:21Running 1 6:25v median −0:12
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Block 02 8:30Running 2 5:48v median +0:19
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Block 03 12:38Running 3 5:48v median +0:02
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Block 04 13:40Running 4 5:54v median +0:05
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Block 05 12:07Running 5 6:29v median +0:34
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Block 06 8:42Running 6 6:25v median +0:37
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Block 07 12:43Running 7 6:22v median +0:40
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Block 08 18:45Running 8 7:35v median +1:14
Roxzone, per block
Approach · Exit 6:16
Against the middle of your field
Women · n = 1268
A pace, not a person: at every mat, the middle of the 1,268 women who finished.