John Hancock Financial will present its elite team of 32 international marathon runners from 11 countries to the media at the Fairmont Copley Plaza Hotel in Boston. Reigning champions Wesley Korir and Sharon Cherop, both of Kenya, return to defend their titles, but will be fiercely challenged by a talented international field of Olympians, World Marathon Majors, and multiple global marathon winners of Amsterdam, Barcelona, Brussels, Cologne, Daegu, Dubai, Eindhoven, Eldoret, Frankfurt, Johannesburg, Hamburg, Houston, Istanbul, Los Angeles, Milan, New York City, Paris, Porto, Rome, Shanghai, St. Paul, Soweto, Toronto, Turin, and the U.S. Olympic Trials.