Wesley Kipchumba Korir is a Kenyan athlete who specializes in long distance running competitions, as well as a politician who served as an elected member of Parliament for Cherangany Constituency. On 16 April 2012, he won the Boston Marathon with a time of 2 hours 12 minutes 40 seconds. He had previously won the Los Angeles Marathon in 2009 and 2010, the first back-to-back winner there in eight years. He took second place in the 2011 Chicago Marathon in a personal-record time of 2 hours 6 minutes 15 seconds, and improved that personal record by 2 seconds in the 2012 Chicago Marathon. In the 2013 Kenyan general election, Korir was elected to a seat in the National Assembly. He lost his seat in 2017.

The Los Angeles Marathon is an annual running event typically held each spring in Los Angeles, California, since 1989. The marathon was inspired by the success of the 1984 Summer Olympic Games hosted in Los Angeles, and has become one of the largest marathons in the country, with more than 25,000 participants, thousands of volunteers, and hundreds of thousands of spectators.