SOMO Winter Trail Series

JAN

9

2027

Trail races at South Mountain Reservation include 5K, 10K and 13.1 mile looped courses with aid stations every 3 miles. Courses use fire roads, single track, hills and some pavement and offer advance and day-of registration.

Sat 9 Jan 2027

South Orange, New Jersey

Website

13 miles 10 kilometers 5 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

SOMO Winter Trail Series

The event offers three looped trail races at South Mountain Reservation in South Orange, New Jersey. The course uses existing fire roads, single track trail, hills and some pavement. Aid is available approximately every 3 miles.

Distances and loop counts:

5K, one loop
10K, two loops
13.1 miles, four loops

Advance registration opens April 30, 2026 and closes May 31, 2026. Base entry fees start at $30 for the 5K, $35 for the 10K and $40 for the 13.1-mile distance. Fees increase by $5 as the race date approaches. Day-of registration prices are listed as $45 for the 5K, $50 for the 10K and $55 for the 13.1-mile race. Day-of payments can be made with cash, check, Venmo, Zelle or PayPal.

There are no finishing medals. A giveaway will be held for participants. Race day registration is available in addition to advance registration. Visit the organization's website for the most recent information.

13 mi

13.1m

10 km

10k

5 km