Trail Running Calendar New Jersey 2025-2026

The Santa's Summit 10k is a scenic and challenging trail run held at Bull Run Marina in Clifton, Virginia. The course follows the Bull Run Occoquan Trail, featuring hilly terrain with a mix of out-and-back and one-way sections. Participants can choose between 5k and 10k distances, both chip-timed, a..

The Holmdel Classic is a challenging end-of-year trail race held in Holmdel Park, Monmouth County, New Jersey. Featuring a roughly 50K ultra and a half-distance option, the race consists of multiple loops on a 4.65-mile course with 95% trail terrain and 584 feet of elevation gain per lap. The course..

The Frosty Looper 8-Hour is an ultrarunning event held at Cooper River Park in Pennsauken, New Jersey. Participants run as many laps as possible within eight hours on a fast, mostly flat 3.75-mile paved loop featuring scenic views of the Philadelphia skyline and the river. The course includes some g..

The Frosty Fat Sass is an annual trail running and hiking event held at South Mountain Reservation in West Orange, New Jersey. Participants can choose from a 5K loop, a 3-hour, or a 6-hour endurance challenge, with a new rucking division available for the 3-hour event. The course features a mix of w..

The Mahlon Winter Donut Trail Run & Hike features a scenic adventure through the beautiful trails of Lake Hopatcong, NJ. Scheduled for February 8, 2026, participants can choose from three distances: a 5-mile, 10-mile, or half marathon (13.1 miles). The courses offer a mix of terrain, including strea..

The Squatchapple Trail Race takes place at South Mountain Reservation in West Orange, NJ, offering distances of 11 miles, 20 miles, 50K, and 50 miles. The course features three loops of varying lengths (4, 5.5, and 7 miles) combining carriage roads, singletrack, and some road crossings, with signifi..

The Livingston Oval Ultra, held in Livingston, New Jersey, is a timed running event featuring 1-hour, 3-hour, 6-hour, and a new 12-hour race distance for 2026. Participants run laps around a USATF-certified, fast, and flat oval course, aiming to cover as much distance as possible within their chosen..

The Matzah Miles 5k Trail Run and 1 Mile Family Walk is a festive event celebrating Passover, set to take place in Medford, NJ. Participants can choose between a competitive 5K trail run, a leisurely 1-mile family walk, or a fun 50-yard Kids Dash. The event features a pre-race warm-up, games for chi..

The Wawayanda Trail Fest, held in Hewitt, New Jersey, is a spring trail running event featuring distances of 100K, 50 miles, 50K, and a half marathon. The course offers a scenic 26+ mile loop through Northern Jersey's hills, including rhododendron tunnels, marsh bridges, gravel roads, and single-tra..