50K ultramarathons in New Jersey, United States in 2026

Woodland trails and fire roads across rolling hills with technical and runnable sections, featuring 50K and 50-mile courses in South Mountain Reservation.

Stunning Wawayanda State Park trails with 100 miler, 100K, 50 miler, and 36-hour race options; generous cut-off times; nonprofit support

Certified one-mile loop of pavement and crushed gravel at Sussex County Fairgrounds; flat, fast and highly runnable for 50K to 100 miles.

Self-supported 200-mile road race across New Jersey, from High Point to Cape May, with runner-created routes on pedestrian-open roads.

Out-and-back ultramarathon with technical single track, horse trails, rocky midsection, creek crossings, nearly 3,000 feet of elevation, and scenic parkland

South Mountain Reservation trails through scenic woods in West Orange, NJ, featuring a 50K route with challenging distance for runners and hikers

Seven loop course with rolling hills, open fields, and New Jersey farmland; over 32 miles on 95% trails and double track in Holmdel Park.