Dahlgren Trail Half Marathon

The 6.4 mile West Side Quarry is the third race in the FXBG Trail Series. Similar to the 5k, runners will start along the Beach trail next to the Rappahannock River — familiar terrain to those of you in the series.

Midway through, the course delivers its defining feature: one main climb that asks you to dig a little deeper. It’s steady and honest — enough to get your heart rate up and your legs working — but manageable with smart pacing. Crest the top, and you’re rewarded with a sense of accomplishment and a renewed stride.

The later miles roll and weave through a series of undulating hills, keeping things playful and engaging all the way to the finish. With a total elevation gain of 426 feet, this race offers a balanced challenge — approachable yet dynamic — perfect for runners who enjoy a mix of flow, focus, and just the right amount of grit.

Don't miss out on the opportunity to enjoy the beauty of the Dahlgren Railroad Heritage Trail. Sure, these races are held in August. In Virginia. That's the bonus challenge! All runners will receive a tank top or t-shirt (your choice!) and a finisher's medal.

Both race courses are beautiful, scenic out and back courses on a mostly flat, smooth rails to trails course. There are roots and bog boards in sections of the course - use extra caution in these areas.

Cash prizes, great competition, good food, and awesome swag all make this a memorable event. There is a 4-hour time limit for the half marathon and an 8-hour time limit for the 50K - runners and walkers are welcome!