Dahlgren Trail Half Marathon

Sat February 20 - Sun February 21 King George, VA 22485 US Directions

Half Marathon

02/20 9:00AM EST - 11:00PM EST
10431 Bloomsbury Road
King George, VA US 22485

UPDATE: 2/16/21: Trail conditions are overall pretty decent with a few muddy spots. We are monitoring the weather and will know more as the storm develops. Please check back for daily race updates. Participants, you'll be receiving daily updates from us starting 2/17/21.

Don't miss out on the opportunity to enjoy the beauty of the Dahlgren Railroad Heritage Trail.  This is a scenic out and back course on a flat, smooth old railroad bed.  Cash prizes, great competition, good food, and awesome swag all make this a memorable event.  And because we understand it can be a bit chilly in February ;) we will be starting the race at 9:00 am to let it warm up and let you get a little more sleep.

Race Contact Info

If you have any questions about this race, click the button below.


Available for Apple and Android devices.

Interactive Race Day Experience with RaceJoy

Live Phone Tracking, GPS Progress Alerts and Cheers!

We are providing you with RaceJoy as part of the official race experience for the Dahlgren Trail Half Marathon.

Download the RaceJoy mobile app in advance to ensure proper phone setup. Invite your friends and family to track you and send you cheers!

Some key RaceJoy features include:

GPS Progress Alerts

  • Receive continual progress updates as you complete your goal.

Live GPS Tracking

  • Remote spectators can track your progress live in a map view. You can also track others.


  • Receive supportive audio cheers from remote friends & family.

Virtual Results (virtual events only)

  • Enter your race-assigned bib number to automatically submit your finish data for real-time scored results.
To use RaceJoy, you must carry your phone and activate tracking on the day you complete your race.
View RaceJoy How-To
Packet Pick Up

Friday, February 19th from 3-5pm at River Rock Outfitter, 215 William Street, Fredericksburg, VA 22401

Saturday, February 20th starting at 7:15am at the Bloomsbury Trailhead.

Please wear a mask at packet pick up - thank you!

This Race Supports the Friends of the Dahlgren Railroad Heritage Trail!

The Friends of the Dahlgren Railroad Heritage Trail is a 501(c)3 Nonprofit group of volunteers who work to develop, preserve, and maintain the historic rail-to-trail greenway as a major recreational, tourism, and educational opportunity for the citizens of King George County and the state of Virginia.  They work to ensure that this linear trail, designated as a National Recreation Trail and an important segment of the Potomac Heritage National Scenic Trail, joins the Virginia State Parks as a connection to Caledon State Park.

They are HUGE supporters of the half marathon and we are thrilled to be able to support their organization through this race!


Race Participant Survey

Please complete the following survey to help us better understand your race experience.

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