Trail Running calendar near Bel Air 2025-2026

The River's Edge Endurance Challenge, held in Brunswick, Maryland, is a multi-event running competition featuring a 5K (3.1 miles) race, a 3-hour endurance race, and a 6-hour endurance challenge. The event takes place primarily on the scenic River's Edge Trail system, with about one mile on school p..

The Conestoga Trail Run - 10 Tough Miles will take place in Holtwood on Sunday 28 September 2025. You can run 10 miles.

The Bear Trail Half Marathon & 10K is a trail running event held at Lums Pond State Park in Bear, Delaware. The race features two distances: a half marathon (13.1 miles) consisting of two loops, and a 10K (6.55 miles) with one loop. The course utilizes sections of the Little Jersey and Swamp Forest..

The Red Barn Challenge is an annual ultrarunning event held at Marzella Farm in Lykens, Pennsylvania. The 2025 edition marks its 6th year, featuring timed races of 24, 12, and 6 hours on a one-mile loop course composed mostly of grass and mulch, with about 70 feet of elevation gain per mile. The sce..

Run-a-Muck is an annual 5K running and walking event held in the scenic Willistown countryside, supporting local land preservation. Participants can choose to run the 5K or "muck" (walk) the cross-country trail featuring diverse terrain, encouraging appropriate attire. The event offers a festive atm..

The Fall Harvest 5k is a scenic trail race held at Claude Moore Park in Sterling, Virginia. Set amidst the vibrant colors of autumn, the course features forest paths and leaf-covered trails, offering a picturesque experience for both runners and walkers. This event is part of the Run Your PRCS Parks..

The Blues Cruise is a 50K trail ultramarathon held near Reading, Pennsylvania, celebrating its 20th anniversary in 2025. The scenic 31-mile loop circles Blue Marsh Lake, featuring varied terrain including fields, rolling hills, single track, and less than half a mile of public road. The course inclu..

The Rick O'Donnell Memorial Ultra Challenge is held annually in Mount Airy, Maryland, hosted by the Frederick Steeplechasers Running Club. The event features a 5-mile trail run along with 4-hour and 8-hour ultra challenges, offering multiple ways for participants to test their endurance on scenic tr..

The Badgerpalooza will take place in Williamstown from Friday 17 October 2025 to Saturday 18 October 2025. You can run between 6 and 24 kilometers.

The Delaware Trail Fest, held at Lums Pond State Park in Bear, Delaware, is a trail running event celebrating the area's scenic outdoor trails. It offers multiple race options including 12 KM and 24 KM trail runs, 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 options of 5.1 miles (one lap) or 10 miles (two laps). The course features mostly smooth singletrack trails with some short technical sections involving rocks and roots, mi..

The Hot Mess Trail Races will take place in Pittsgrove on Saturday 25 October 2025. You can run between 13 and 6 kilometers.

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 distances: a 50K and a 25K, both available as in-person or virtual races. Runners enjoy a scenic, historic, and wel..

The Fall Backyard Burn Trail Run at Riverbend Park in Great Falls, VA, offers 5- and 10-mile trail races on scenic riverside singletrack trails adjacent to the Potomac River and near Great Falls National Park. The course features moderate elevation gains of 350 feet for 5 miles and 700 feet for 10 m..

The MCRRC Stone Mill 50 Mile Run is an ultramarathon event held in Montgomery Village, Maryland. This challenging 50-mile race offers runners a unique endurance experience on a course designed to test stamina and determination. The event is organized by the Montgomery County Road Runners Club (MCRRC..

The Schaeffer Half Marathon and 10K Trail Run, hosted by EX2 Adventures, takes place at the scenic Button Farm in Germantown, Maryland. The event features two distances: a 13.3-mile half marathon with 1,000 feet of elevation gain and a 6.7-mile 10K+ course with 500 feet of elevation gain. Known for..

The Rosaryville Veterans Day Trail Race, hosted by the Annapolis Striders, is an annual trail running event held at Rosaryville State Park in Upper Marlboro, Maryland. The race offers two distances: a 50K and a 20K, both featuring loops on a 9.5-mile single-track perimeter trail through wooded areas..

Forbidden Run Fest is a trail running event held in Wissahickon Valley Park, Philadelphia, PA, known as the city's most beautiful park with over 2,000 acres and 50 miles of trails. The race offers three distances: 10K, 10 miles, and a Half Marathon+ (approximately 14 miles). The course features a mi..

The Talaria Trail Run will take place in Laurel on Saturday 15 November 2025. You can run 4 miles.

The Fall Backyard Burn at Hemlock Overlook is a trail running event held in Clifton, VA, near Washington D.C. The race features two distance options: a 5.2-mile single lap and a 9.5-mile double lap course, with elevation gains of 600 and 1,200 feet respectively. The scenic course runs through Hemloc..