Bigger than big. The MCM welcomes a new distance to conquer when the MCM50K is inaugurated on October 27. The MCM50K shares a start line with the Marine Corps Marathon in Arlington, VA. Participants will begin the MCM50K prior to the Marathon and run the entire MCM course with the addition of a 4.87-mile diversion at Mile 4.5.

Upcoming Races

Oct 31 2021
50 KM
1 Elevation Rating
Flat or nearly flat
1 Surface Rating
Paved or very smooth surface


50 KM View course top times

Date Finishers Top Result (M) Top Result (F)
10/25/20 Race Cancelled
10/27/19 1330 3:11:52 3:42:04
We try to keep the most accurate information about this race, but changes do happen. Always visit the official race website for the most up to date information. If you see an error, please let us know

Dahlgren Heritage Rail Trail 50K

  • Aug 6, 2022
  • King George, VA
50 KM