Faced with running 26.2 miles in temperatures that reached the 80s, Wesley Korir's winning time at the 2012 Boston Marathon was the second-slowest to capture the event since 1985.
One year after Geoffrey Mutai set a course record, Korir battled through the heat to finish the course at an unofficial time of 2:12:40. Mutai led after 18 miles but was forced to withdraw at that point with cramps brought on by the heat, opening the door for Korir to become the 19th Kenyan winner in the past 22 years at the Boston Marathon.
The harsh temperatures caused more than 4,000 runners to withdraw prior to the race's start. Many others, including Mutai, withdrew during the event.
Sharon Cherop of Kenya won the women's division with an unofficial time of 2:31:50. Her winning time was the slowest in Boston since 1985.
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