The 2015 Boston Marathon was the 119th running of the Boston Athletic Association's mass-participation marathon. It took place on Monday, April 20 (Patriots Day in Massachusetts).
The event ran along the same winding course the Marathon has followed for many decades—26 miles 385 yards (42.195 km) of roads and city streets, through eight Massachusetts cities and towns, to the finish line beside the Boston Public Library, on Boylston Street in Boston's Copley Square. The Marathon set a field size of about 30,000 entries. The 2014 champion, Meb Keflezighi, was entered in the marathon as well. All 50 US states and all Canadian provinces were represented at the marathon, as well as several U.S territories, such as American Samoa, Puerto Rico, and the U.S Virgin Islands.
Training for the 2015 marathon in the Greater Boston area was difficult due to the fact that Boston received over 100 inches (250 cm) of snow during the past winter. This resulted in many people trying to find ways to work around the weather, such as training on treadmills and indoor tracks, and by obtaining more equipment designed for the weather Boston received.
Three of the four defending champions will be at the marathon. Rita Jeptoo will not be among them, as she is serving a two-year ban for a positive drug test.
Results are from the Boston Athletic Association.