The Marine Corps 17.75K course in scenic Prince William Forest Park features a 11.03 mile run over rolling hills and winding turns in a densely wooded backdrop. The 17.75K starts and finishes outside Montclair Tabernacle Church located in Dumfries VA, near Marine Corps Base Quantico and sends runners on a course through Prince William Forest Park.

The Marine Corps 17.75K course begins just outside Montclair Tabernacle Church as runners head north (in a secured southbound lane of Route 234 and along the paved shoulder) before quickly turning left onto the gravel pathway of Pleasant Road to enter Prince William Forest Park.

The lollipop course begins with approximately two miles of gravel terrain beginning on Pleasant Road and turning right onto Burma Road. Runners then cross over Scenic Drive and travel downward on Taylor Farm Road before turning left onto Old Black Top Road (both roads are gravel).

Runners then turn right onto Scenic Drive, traveling clockwise. Near Mile 9, runners will make a left turn back onto Burma Road, heading toward the finish. Runners will complete a short out-and-back portion just before turning back onto Pleasant Road. Once on Pleasant Road, runners will continue straight until the final right turn, where they will exit Prince William Forest Park and follow the bicycle path to the 17.75K finish.

Runners must maintain 20 minute miles at the 17.75K.

Water Points

There will be four self-serve water points along the course, at approximately the miles listed below:

  • WP1: Mile 2
  • WP2: Mile 4.5
  • WP3: Mile 7.2
  • WP4: Mile 9


Medical aid stations will be located along the Marine Corps 17.75K course and in the start/finish area.

Participants may participate in the Marine Corps 17.75K with hydration packs. All runner and spectator bags brought to the event site will be subject to search.


Participants should use the clear plastic bag provided at Packet Pick-up to store personal items on event day. Check the bag at the Baggage Area near the start/finish location and retrieve baggage from the same location after a successful finish.


The field of participants will be divided into two separate, scaled, social distanced start times at 8:00 and 10:00 a.m.


All finishers will receive the impressive medal and event day hospitality as they cross the finish line. The medal design will not be revealed until event day.


Awards to the top overall men & women. Awards will also be given out to the top male and female in each 5-yr age group. (10-14, 15-19, 20-24, 25-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60-64, 65-69 and 70+)


Visit the interactive Marine Corps 17.75K Virtual official results including searchable finish times. The arrow next to a runner's name offers a drop-down menu providing a clickable link to share results, open an individual finisher page or access finisher certificates. Finisher certificates may be downloaded, printed or shared.

2021 Results