John Korir set a new course record at the Boston Marathon, finishing in 2:01:52.
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Korir broke the previous Boston Marathon record set by Geoffrey Mutai in 2011 by 1 minute and 10 seconds.
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Korir broke the previous Boston Marathon record set by Geoffrey Mutai in 2011 by 1 minute and 10 seconds.
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John Korir set a new course record at the Boston Marathon, finishing in 2:01:52.