Trail Running calendar near York 2025-2026

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 Delaware Trail Fest, held at Lums Pond State Park in Bear, Delaware, offers trail running events for all abilities, celebrating the area's scenic outdoor trails. The race features distances of 12 km and 24 km, as well as a 12-hour Lone Wolf solo challenge and a 12-hour 4-person relay. The course..

The Fall Backyard Burn Trail Run at Lake Fairfax Park in Reston, VA, offers runners a scenic and engaging trail experience with distances of 5.1 miles (one lap) or 10 miles (two laps). The course features mostly smooth singletrack with some short technical sections involving rocks and roots, minimal..

The Tussey Mountainback 50 Mile Ultra is a scenic ultramarathon held in Boalsburg, Pennsylvania, within Rothrock State Forest. The event features a challenging 50-mile loop course that is 82% dirt and 18% paved, with varied terrain including uphill, level, and downhill sections, shaded areas, and sc..

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 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 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 Hex Hollow Half is a trail running event held in Glen Rock, Pennsylvania, starting and finishing at Spring Valley Park. It offers two race distances: a challenging half marathon of 13.13 miles consisting of two loops, and a shorter 6.66-mile single loop for those not ready for the full distance...

The 21st Annual Catonsville High School XC Turkey Trot is a cherished community event celebrating health and wellness. Scheduled for November 27, 2025, this event features a 1 Mile Family Fun Run and a 5K race, both of which are chip-timed. Participants can enjoy a family-friendly atmosphere while s..

The Tame the Tower Trail Challenge is a trail running event held in Mt. Gretna, Lebanon, Pennsylvania, at Clarence Schock Memorial Park. Scheduled for December 13, 2025, it features two distances: a 10-mile "T-Rex" and a 5-mile "Ferocious" run.The courses are marked with colored flags—pink for the 1..

Naked Nick is a trail running event held in Leesport, Pennsylvania, featuring 25K and 50K distances around Blue Marsh Lake. The course is a lollipop-shaped route on the lake's south side, combining 80% single-track trails and 20% gravel roads, with moderate elevation gains of approximately 1,500 fee..

The Mid-Maryland Trail Festival 50k is a 31-mile ultramarathon held at Rockburn Branch Park in Elkridge, Maryland. The course consists of six loops, each approximately 5.179 miles, winding through wooded trails. Participants can run the full 50k solo or form relay teams of 2 to 6 members, exchanging..

The Naked Bavarian is an affordable ultra trail running event held at Blue Marsh Lake in Leesport, Pennsylvania. Offering 20- and 40-mile distances, the course features a lollipop loop with mostly runnable trails—80% single track and 20% gravel roads—covering approximately 2,000 feet of elevation fo..

The Genesee Valley Ultra is an endurance running event held at the Genesee Valley Outdoor Learning Center in Parkton, Maryland. It features a 2.5-mile trail loop through farm roads, grass fields, and some double track on private property. Participants can choose from 6, 12, or 24-hour race durations..

The Rockland Rad Run is a trail running event held at Forever Farm in Mertztown, Pennsylvania, featuring a half marathon, 10k, and 5k distances. Set amidst the scenic Pennsylvania woods, the course offers a challenging experience through rolling, rugged terrain, ideal for trail running enthusiasts...

The Breeze Thru The Trees 5k is a cross-country running event held at Ruppert Nurseries, a 500-acre tree farm located in Gaithersburg, Maryland, within Montgomery County’s Agricultural Reserve. The event features a 5K run and a 1-mile fun run, offering participants a scenic course winding through a..

Run to Remember in Sykesville, MD, is a memorial running event held at Piney Run Park featuring distances of 50K, 25K, 5 miles, and an 8-hour challenge. The course is a scenic 5.25-mile loop through woods and meadows, with about half the route offering lake views. Runners complete multiple loops dep..

The Farm Park Challenge is a unique trail running event hosted by My Muddy Shoes at the Agricultural History Farm Park in Montgomery County, Maryland. Participants can choose from three timed challenges—3-hour, 6-hour, or 10-hour—where runners must complete one lap of the course each hour, resting o..