The MCM10K fills all 10,000 available entries for the sixth year in a row.
Marine Corps Marathon
The Marine Corps Marathon (MCM) is holding registrations for events on the weekend of Oct. 25th through the 27th.
The 38th Marin Corps Marathon will debut a flatter course from miles 6 through 9 as runners approach the U.S. Capitol.
Olympian Jeff Galloway will takeover the MCM twitter account to give advice to runners who will be in the marathon on October 27.