3H Trail Half Marathon


Saturday August 7, 2021

In Person!

Half Marathon

$70 08/07 7:30AM EDT
Sorry! This event is full. Price increases after August 5, 2021 at 11:59pm EDT


Half Marathon

Next price increase is Friday, August 6, 2021 Register Now! $70

Time Left To Train


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!

The trees along the trail ensure almost 100% shade during the run.

Tank Tops


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

Overall awards are based on gun time - the first 5 males and first 5 females to cross the finish line. You must start in one of the first 2 waves to be considered for overall awards.
Age group awards are based on chip times. Age group awards may be given to runners starting in any of the waves. Runners not receiving an overall award are eligible for age group awards.

Wave Starts

Because of trail restrictions near the start, waves of approximately 30 runners will be used.  Assignments will be based on estimated finish times and will be started about 2 minutes apart at 7:30am, 7:32am, and 7:34am.
Wave assignments will be emailed and posted to the race website on August 5, 2021.  If the race sells out before August 5, 2021, we will post wave assignments sooner.

Packet Pickup and Race Day Parking

Packet Pickup:

August 6, 2021: River Rock Outfitter, 215 William St., Fredericksburg, VA from 1-3pm (tentative)
August 6, 2021: Anytime Fitness, 16453 Merchants Lane, King George, VA from 4:30pm-6:30pm
August 7, 2021: 6:30 - 7:15am at the trailhead

Race day parking is available at the Route 605 Trailhead. Please carpool if possible and arrive early. The parking lot will open at 6:30 am for half marathon participants.  Overflow parking will be available off of Birchwood Creek Road.

Road Crossings & Aid Stations

There will be a crossing guard that will help at major road crossings, but please make sure you look both ways before crossing. There is one unmonitored paved road crossing (Muscoe Place). Traffic volume is very low on this road.

There will be water available at miles 1.5, 4, 6.5, 9 and 11.5. There will be Gatorade at miles 4, 6.5, 9 and 11.5. Please do your best to get all trash in to the trash bins. We'll provide 1 Gu at packet pick up to all participants.

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