Dahlgren Half Marathon

Saturday February 20, 2021

9 AM Start

Limited to the first 225 Participants!

Half Marathon

$70 02/20 9:00AM EST - 11:00PM EST Price increases after February 18, 2021 at 11:59pm EST

Virtual Half Marathon

$50 Registration ends February 10, 2021 at 11:59pm EST

Amount of Time Left to Train!


Half Marathon

Next price increase is Friday, February 19, 2021 Register Now! $70

Virtual Half Marathon

Next price increase is Register Now! $50

Course Description

The race is run entirely on the Dahlgren Railroad Heritage Trail which is a converted railroad bed and provides solid footing with little or no roots.  This trail is flat, smooth, and fast with a variety of surfaces ranging from dirt, gravel, grass, and pine needles.  

The course is an out and back that starts at the Bloomsbury Road Trailhead and heads east from the start for ~6.5 miles before turning back.  The volunteers from Friends of the Dahlgren Rail Heritage Trail do an excellent job of ensuring that the trail is in peak shape for the race!



Overall: Top 5 Men and Women. 

Cash prizes of $100, $75, $50, $30, $20


Age Groups:  Top 3 Men and Women

19 & Under, 20-29, 30-39, 40-49, 50-59, 60 - 69, 70 & Over


All awards will be based on Chip Time due to the socially distanced starting line.  To be considered for overall awards you must start in the First Wave.  Wave assignments will be based on estimated finish time.

Wave Starts

Because of trail restrictions near the start, waves of 20 to 40 runners will be used.  Assignments will be base on estimated finish times and will be started about 2 minutes apart.


Awards will be based on each runner's net time, with each runner in a wave given the same starting time.


Packet Pickup and Raceday Parking

Packet Pickup:

Friday 2/19:  4 - 7 pm at River Rock Outfitter

215 William Street, Fredericksburg

Race Morning:  7:30 - 8:45 at the trailhead


Raceday parking is available at the Route 605 Trailhead.  Please carpool if possible and arrive early.  The parking lot will open at 7:30 am.

About The Trail

The 16-mile Dahlgren Railroad Heritage Trail follows the route of the old Dahlgren Branch rail line, stretching across King George County just south of the Potomac River in Virginia's Northern Neck. The trail is open for walking, running, cycling and other recreational non-motorized uses while preserving 240 acres of wildlife and natural beauty.



More Trail Info

King George Trail Series

This is the inaugural year of this trail series which consists of 4 unique races that cover different segments of the Dahlgren Railroad Heritage Trail.  

2020 Race Schedule
Feb 20:  Dahlgren Half Marathon
Mar 13:  Sheetz to Sheetz Run
Aug 7:  3H Half Marathon
Oct 2:  Howlin' Coyote 10K

Complete all 4 races and you will get a special finisher's reward.  Sign up today and get a $5 discount on each race!

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