Trail Running calendar near Gaithersburg 2024-2025

The Old Dominion 100 Mile Endurance Run is a challenging trail run through the Massanutten Mountains, Shenandoah River Valley, and Fort Valley Virginia, featuring 14 significant climbs and 14,000 feet of gain. This race is part of the Grand Slam of Ultrarunning series and offers a unique test of end..

Participants can challenge themselves in the OSS/CIA 50 Mile Night Run, a trail run that takes place in Prince William Forest, VA. The event pays tribute to the history of the area as the training ground for OSS spies during World War II. The course consists of a 25+ mile loop run on single track, f..

The 12th annual Charcoal Challenge 5k run/walk and Iron Run half-marathon will take place on Saturday, June 8, 2024, at Pine Grove Furnace State Park. These trail races are organized by the Friends of Pine Grove Furnace to support recreation, education, and conservation in the State Park. Early regi..

The Smith's Challenge Trail Race takes place at Pavilion #2 in Lancaster County Central Park, PA. The event offers a 5-mile course utilizing trails, grass areas, and water crossings, with a 10-mile option repeating the loop. Bib pickup and day-of registration are available from 8:00 - 8:45 AM, with ..

The Blue Crab Bolt Trail Run Series kicks off at Seneca Creek State Park in Montgomery County, MD, offering a scenic and challenging trail running adventure. Participants can choose between a 5K and a 10K race, with prices increasing after March 22, 2024. The series includes multiple races at differ..

The Catoctin 50k Trail Run & Half Cat is a challenging trail run taking place in Frederick, MD. The race offers both 50k and 25k distances, with runner limits in place. The course is rocky, slow, and demanding, with runners navigating through various aid stations and challenging terrains. The event ..

The trail run event organized by SPEAR offers participants the choice between a 10k, 25k, or an 8 Hour Challenge race, all taking place on different days at the Sherando Park bike trails. The 10k and 25k races will benefit the local Special Olympics chapter, while the 8 Hour race will support the Ka..

The Endless Summer 6-Hour Run will take place on Saturday, July 20, 2024, at the Greenbury Point Nature Center in Annapolis, MD. The event offers a 6-hour individual run or a 6-hour relay option. The course is approximately 2.43 miles long, providing a scenic view of the Chesapeake Bay and Bay Bridg..

The Blue Crab Bolt Trail Run Series offers 5K and 10K races at different locations in Maryland, including Schaeffer Farms, Seneca Creek, and Little Bennett. The trails are described as flowy, fast, and fun, with some technical sections like rocky and rooty areas. The races start and end at the Butto..

The On the Rocks Trail Runs will take place in York on Saturday 27 July 2024. You can run between 7 and 50 kilometers.

The 3H Trail Half Marathon will take place in King George on Saturday 3 August 2024. You can run 13 miles.

The Dahlgren Heritage Rail Trail 50K is a challenging trail race set in King George, Virginia, taking place on August 3, 2024. The course is flat, mostly shaded, and well-maintained, providing a fast and enjoyable running experience. Participants can expect sweltering heat and humidity, testing thei..

The trail run takes place at Little Bennett Regional Park in Montgomery County, MD, offering over 20 miles of picturesque trails and camping facilities. The race courses follow twisty single-track hiking trails with challenging hills and stream-side running. The event supports a local non-profit org..

The Summer Bash event at Miller Plant Farm features the 7th annual Farm Fresh 5K, a rugged all-terrain course that includes paved and stone surfaces, grassy farm and wooded trails, and beautiful views of the Leader Heights region of Southern York County. Participants can win prizes for overall and a..

The Slopeside Slumber Party trail run will take place on Saturday, August 17th, 2024, at Roundtop Mountain Resort in Lewisberry, PA. The race will start at 8:00 PM and participants will have 3 hours to complete as many 1.5-mile loops as they want. The course includes approximately 600 feet of elevat..

The MD Heat Trail Race is set to take place on Saturday, August 17, 2024, at Patapsco Park in Elkridge, MD. Participants can choose between a 25K (16 miles) or a 50K all-trail race, featuring varying terrains from rock scrambling uphills to single track downhills. The event promises a rockin' after-..

The KTA Trail Challenge in Drumore, PA offers a challenging 25K course with steep climbs, rocky terrain, and stunning views. The race is suitable for both trail runners looking to test their skills and hikers seeking a strenuous adventure. This year, the course has been reversed, starting from Peque..

Trails 4 Tails is a trail run event taking place at Codorus State Park in Hanover, PA, offering a 40 Mile Ultra, 40 Mile Relay, and 25K race options. The course is a 5.72-mile looped trail around Lake Marburg, featuring single track trails and shoreline views. The 40 Mile Ultra involves 7 loops with..

The Cancer Warriors 5k trail run will take place on September 21, 2024, at the Ma & Pa Trail in Baltimore, MD. Participants can choose to run the 5k in person or virtually as a "ghost runner" and can opt-in for a t-shirt add-on. The event supports cancer research institutions, with all proceeds goin..

The Conestoga Trail Run is a challenging 10-mile trail race in Holtwood, PA, known for its brutal, rocky, and challenging trails. The course offers beautiful hilltop views of the Susquehanna River, clear feeder streams, and huge rock formations. Participants must be 14 years or older to enter, and t..