Trail Running calendar near Mount Gretna 2025-2026

The Berry Mountain Backyard Trail Challenge is a 12-hour endurance event held in Millersburg, Pennsylvania. Participants run, hike, or crawl as many loops as possible on a 2.36-mile trail featuring 780 feet of elevation gain per loop. The course includes rocky dirt logging roads, singletrack trails,..

The Bashore Bash 6HR & 12HR Ultra is an exciting endurance running event set in the scenic Blue Mountains at the Bashore Scout Reservation in Jonestown, PA. Participants can choose between a 6-hour or 12-hour ultra race, navigating a challenging course that features technical trails with natural obs..

The Half Ass 25k & 10k is a challenging trail running event held in Newville, Pennsylvania, at 1599 Doubling Gap Road. The race offers two distances: a 10k with over 2,000 feet of elevation gain, and a more demanding 25k featuring over 4,000 feet of vertical gain, including iconic park highlights li..

The Awesum Possum Lake Trail Adventure, held in memory of Steve Fealtman, is a running and walking event taking place at Opossum Lake Park in Carlisle, PA. Participants can choose from a 6-mile obstacle course, a 4-mile run, or a 4-mile walk, all set against the scenic backdrop of the lake and its s..

The 1/2 Sauer 1/2 Kraut is a unique marathon and half marathon event held in Philadelphia's Pennypack Park, starting and finishing at the Ed Kelly Amphitheater. The course follows a mostly shaded, paved bike trail along Pennypack Creek, featuring rolling hills and natural scenery without traffic or..

The Treaster Kettle Test-Your-Mettle is a 10.6-mile out-and-back trail race held in Boalsburg, Pennsylvania, starting from Colyer Lake. It follows leg 11 of the Tussey Mountainback 50-mile loop course, featuring a scenic route to Bear Meadows and back. The course includes a water station at mile 5.3..

Smith's Knob Scramble is an 8-mile trail race held in Montoursville, Pennsylvania, featuring a challenging course along the Loyalsock Trail that ascends the steep Smith's Knob. The event also offers a new 4.5-mile "Half Scramble" loop, ideal for beginners, which includes a mix of single track and lo..

Smith's Challenge Trail Run, directed by the Lancaster Road Runners Club, is a historic trail running event held at Lancaster County Central Park in Pennsylvania. Celebrating its 36th anniversary in 2025, the race offers two distances: a 5-mile and a 10-mile trail run, with the 10-mile race consisti..

The Run For the Ages 10K Trail Chase is a scenic trail running event held in Nolde Forest, Cumru Township, near Reading, Pennsylvania. This unique race features an age-graded start, giving runners of all ages and genders a fair chance to compete for the overall title. The course is a well-marked 10K..

The Catoctin 50k Trail Run & Half Cat is a challenging ultramarathon held in Frederick, Maryland, within Cunningham Falls and Gambrill State Parks. The 50k course is an out-and-back route on rocky, demanding trails marked by light blue blazes, featuring significant elevation changes and multiple str..

The YMCA Hometown Heroes Trail 5K is a challenging trail running event held in Elizabethville, Pennsylvania, organized by the Northern Dauphin County YMCA along with Harrisburg YMCA Races and Harrisburg Area YMCA. The race features a 5K trail course winding through scenic trails around the YMCA grou..

The Eager Seeger Half Marathon is a challenging 13.6-mile race held in Boalsburg, Pennsylvania, featuring a loop course through the Alan Seeger Natural Area. Part of the Tussey Teaser Series, it includes the toughest hill on the Tussey Mountainback course, climbing over 1,300 feet in the first four..

On The Rocks Trail Runs is a challenging trail running event held at Rocky Ridge County Park in York, Pennsylvania. The race features multiple distances: 50K, 33.3K, 16.7K, and 10K, all set on a course characterized by rolling hills, rocky terrain, dirt paths, and tree roots. Each loop includes appr..

The Sweet Air Trail Race, organized by the Baltimore Road Runners Club, is a challenging 7 to 8-mile trail run held at Gunpowder State Park in Sweet Air, Maryland. The course features a mix of rolling hills, fast sections, water crossings, and occasional mud, providing a varied and adventurous runni..

The Blue Mountain Trail Run, held at Blue Mountain Ski Area in Palmerton, Pennsylvania, offers a scenic 10K trail race through pristine singletrack trails beyond the ski resort boundaries. Known for its challenging terrain, the course features some of the Poconos' legendary hills, providing a favori..

The Quadzilla 15K Trail Race, set in Schnecksville, PA, is known as Lehigh Valley's toughest trail race. The course features a diverse landscape, including rolling hills, water crossings, and single-track trails, providing a challenging experience for participants. Open to ages 13 and up, the race e..

The Run the Vineyards Bohemia Manor Farm 8K is an exciting running event set in the picturesque Bohemia Manor Farm in Chesapeake City, MD. Participants can choose between a scenic 8K trail run and a 5K run, both featuring beautiful views of vineyards and the Bohemia River. The event includes chip-ti..

Loopy Looper is an ultra running event held at Cooper River Park in Pennsauken, New Jersey, featuring a fast, flat 3.75-mile paved loop with scenic views of the Philadelphia skyline and river. The race offers multiple distances including 12-hour, 24-hour, and a 101.25-mile ultra, as well as a 4-pers..

The MD Heat Trail Race, held in Elkridge, Maryland at the Patapsco Pickall Area, offers challenging trail running options of 25K and 50K distances. The course features rolling single-track trails with over 2,000 feet of elevation gain, including technical rocky sections, two river crossings, and a s..

The Slopeside Slumber Party is a unique nighttime running event held at Roundtop Mountain Resort in Lewisberry, PA. Participants have three hours to complete as many laps as they can on a challenging 1.5-mile loop featuring 600 feet of elevation gain. The course includes 0.5 miles of pavement and 1..