
Defending champion John Korir shattered the Boston Marathon course record Monday, winning in 2:01:52 while benefiting from a strong tailwind. Sabastian Sawe's sub-two-hour world record in London (1:59:30) now redefines the elite benchmark, placing Korir's course record into a new context and prompting closer comparisons of course conditions, pacing strategies and equipment. Korir's performance remains a major elite achievement given Boston's unique course and weather variability.
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