Trail Running calendar near Princeton 2025-2026

Squatchapple is a popular trail running event held at South Mountain Reservation in West Orange, NJ, offering distances of 11 miles, 20 miles, 50K, and 50 miles. The race features a challenging course composed of three loops—4, 5.5, and 7 miles—with varied terrain including carriage roads, singletra..

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 single-track trails (80%) and some gravel roads (20%), with elevation gains of approximately 2..

The Mt. Tammany 10 is a challenging ultramarathon held in Delaware Water Gap, NJ, featuring an almost 40-mile course with over 10,000 feet of elevation gain. Runners complete 10 grueling loops, each involving a climb to the summit of Mt.Tammany via the Red-Dot trail, a descent on the Blue-Blaze trai..

The Terror of Tammany is a challenging trail running event held at Worthington State Forest in Columbia, NJ. Featuring two distances, a 30K and a 50K+, the race consists of multiple loops of a 6.7-mile course with approximately 1,750 feet of vertical ascent per loop. The 30K covers three loops, cate..

The Morris County Empanada Trail Run, held in Morris Plains, NJ, offers both 5K and 10K run/walk events on scenic trails within Central Park of Morris County. The course features mixed terrain including dirt, grass, gravel, and some hills, providing a varied and enjoyable trail running experience. P..

Big Bear Squatch North is a challenging trail running event held at Harriman State Park in Bear Mountain, New York. Featuring a half marathon and 10K races, including a new rucking division with lightweight (15 lbs) and heavyweight (30 lbs) pack categories, the event showcases rugged, technical moun..

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 Philadelphia Trail Marathon, held in Wissahickon Valley Park, Philadelphia, offers marathon (26.2 miles) and half marathon (13.1 miles) distances. The park, spanning over 2,000 acres with 50+ miles of trails, features natural beauty and historic sites, making it a favorite for local trail runner..

The Spring SOMO Timed Trail Races take place at South Mountain Reservation in South Orange, New Jersey. This event features a looped trail course of 1.88 miles (just over 3K) that includes single track, pavement, and fire road sections. Runners can choose from multiple race options: 1 loop (3K), 2 l..

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 is a challenging trail running event held in Vernon Township, New Jersey, at Wawayanda State Park. It features multiple distances including a 100K, 50 Mile, 50K, and Half Marathon, all running on a scenic 26+ mile loop course with rhododendron tunnels, marsh bridges, gravel..

XTERRA New Jersey is an off-road multisport event held at the scenic Wawayanda State Park, featuring over 40 miles of trails and a clear lake. Part of the XTERRA World Tour, it offers a variety of races including trail runs (5K to 42K), gravel and mountain bike races, and triathlons such as full dis..

The VCP50k is an ultramarathon held in Bronx, New York, founded in 2023 and designed to accommodate both novice and experienced runners. The race features a challenging yet accessible course consisting of ten loops on the classic Tortoise and Hare cross country trail, plus an initial lap on flat ter..

The Green Traill 5K is an annual running event held in Easton, Pennsylvania, specifically at the historic Easton Cemetery. Celebrating its 5th anniversary in 2026, the event features a 5K run, a walk, and a kids fun run for children aged 10 and under. This unique race is notable for being the Lehigh..

The Dirty German Endurance Fest is an urban ultramarathon held within Philadelphia's Pennypack Park, a scenic area featuring trails along Pennypack Creek with diverse surfaces including soft dirt, sandy spots, single track, gravel, and some paved bike trail. The event offers 25K, 50K, and 50-mile di..

3 Days at the Fair is a multi-day ultrarunning event held at the Sussex County Fairgrounds in Augusta, New Jersey. Scheduled for May 11-17, 2026, it features a certified 1-mile flat loop course composed of pavement and crushed gravel, fully lit for night running. The event offers various race durati..

The Pinky’s Rock n Rolla will take place in Richmond Hill on Saturday 11 July 2026. You can run 4 miles.

The Blue Mountain Trail Run takes place at Blue Mountain Ski Area in Palmerton, Pennsylvania, offering a scenic 10K trail race. This event features pristine singletrack trails located outside the usual ski boundaries, providing a unique running experience inaccessible to obstacle course racers. Part..