Trail Running calendar near Frederick 2025-2026

The VHTRC Women's Half Marathon will take place in Fairfax Station on Saturday 13 September 2025. You can run between 7 and 13 miles.

The 12 Hour Adventure Trail Run takes place at Prince William Forest Park near Triangle, Virginia. This challenging event features a 6.5-mile figure-eight loop trail course with approximately 650 feet of elevation gain per loop, combining single track and fire road terrain. The course is designed to..

The Valley View Hard Cider Challenge Half is a scenic and challenging race held at Valley View Farm in Delaplane, VA. Participants can choose from a half marathon, 10k, or 5k course, featuring cross-country, trail, and hill segments. The event offers a festive atmosphere with a finish line cider, fi..

The Cancer Warriors 5k is an annual running event held in Belair, Baltimore, MD, along the scenic Ma & Pa Trail. The course is a straightforward out-and-back route starting at the trailhead near Independent Brewery, featuring a path that crosses streams and passes under Route 24 before reaching a tu..

The Final Countdown Tribute is an exciting running event hosted by 2 Lowe Run Company at Amani Brewing in Martinsburg, WV. This unique race features a 1.33-mile loop course where participants must complete laps within a progressively decreasing time limit. Starting with a 20-minute lap, the time sho..

The Woodstock Warrior is a challenging trail running event held at Seven Bends State Park in Woodstock, Virginia. The race features a roughly 10-mile looped course with mixed terrain, including gravel roads, two-track dirt roads, and single-track trails, with about 1,800 feet of elevation gain per l..

Mountain Creek Mayhem is a trail running event held at Pine Grove Furnace State Park in Gardners, Pennsylvania, nestled in the northern Michaux State Forest of the Appalachian Mountains. The race offers three distances: a challenging 50K (approximately 33 miles with 4,700+ feet elevation gain), a to..

The Brandy Station Battlefield 10k is a trail running event held at Brandy Station Battlefield in Virginia. The course combines cross country terrain with gravel dirt roads, featuring slight elevation changes but no major climbs. Runners can choose between 5k and 10k distances, with the 10k route be..

The Conestoga Trail Run - 10 Tough Miles is a challenging trail race held in Holtwood, Pennsylvania, known for its rugged terrain and scenic views. Celebrating over 30 years, this event features a hilly course with rocky paths and stream crossings, making it suitable for experienced trail runners ag..

The Full Distance 10k and 5k is a scenic trail race held at Locust Shade Park in Triangle, VA. Participants can choose between a 5k or 10k course, with the event featuring chip timing, finisher medals, and technical event shirts. The course includes trail segments with some roots and hills, and wate..

The Rocky Gap Trail Run, hosted by EX2 Adventures at Rocky Gap State Park in Flintstone, Maryland, offers challenging 25K and 50K ultra-distance trail races, including relay options for teams of 2 or 3. The course features three distinct loops ranging from 4.4 to 6.5 miles, with varied terrain inclu..

The Rick O'Donnell Memorial Ultra Challenge is an annual trail running event held in Mount Airy, Maryland, hosted by the Frederick Steeplechasers Running Club. The event features three race options: a 5-mile trail run, a 4-hour challenge, and an 8-hour ultra challenge, offering various ways for runn..

The Fall Backyard Burn Trail Run at Lake Fairfax Park in Reston, VA, offers runners a scenic trail experience featuring a beautiful lake and extensive singletrack trails. Participants can choose between a 5.1-mile course with 300 feet of elevation gain or a 10-mile option consisting of two laps. The..

The Patapsco Valley 50K is an annual trail running event held at Patapsco Valley State Park near Baltimore, Maryland, with race headquarters at CCBC-Catonsville. The event features two main distances: a 50K and a 25K, both available as in-person or virtual races. Runners enjoy a scenic, historic, an..

The Halloween Horror 10k is a trail running event held at Conway Robinson State Forest in Gainesville, Virginia. The course features a loop through forest trails with some technical terrain and minor hills, with the 10k consisting of two laps of the 5k route. The event welcomes both runners and walk..

The Fall Backyard Burn Trail Run at Riverbend Park in Great Falls, VA, is a scenic trail running event held on November 2, 2025. Participants can choose between 5-mile (one lap) and 10-mile (two laps) courses featuring beautiful riverside singletrack trails with a few short hills and stunning views..

The Fire on the Mountain 50K Trail Race takes place in Green Ridge State Forest near Little Orleans, Maryland. Offering two distances, the 50K (approximately 31.95 miles) and 25K (about 16.3 miles), the race features a challenging out-and-back course with technical trails, forest service roads, and..

The MCRRC Stone Mill 50 Mile Run is a challenging trail ultramarathon held in Montgomery Village, Maryland. The race covers 50 miles along the scenic Seneca Greenway and Muddy Branch trails, featuring forested, rolling terrain primarily on single-track dirt paths with small stream crossings. While t..

The Schaeffer Half Marathon and 10K Trail Run, hosted by EX2 Adventures, takes place at the scenic Button Farm in Germantown, Maryland. This event features two distances: a 13.3-mile half marathon and a 6.7-mile 10K+, both offering challenging courses with twisty singletrack trails and wide-open far..

The Rosaryville Veterans Day Trail Race, hosted by Annapolis Striders, is an annual trail running event held at Rosaryville State Park in Upper Marlboro, Maryland. The 16th edition in 2025 features two distances: a 50K ultra and a 20K race. Both courses loop around a 9.5-mile single-track perimeter..