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
13 miles 10 kilometers 5 kilometers

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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.

Events nearby

A flat 5K trail race through Willowbrook Park and around Willowbrook Lake with marked trails and proceeds supporting the Greenbelt Conservancy.
A community 5K and 1 Mile walk at Central Park of Morris County on November 8, 2026, with in-person and virtual options supporting local housing services.
An ultra trail event on Staten Island offering 50 Mile, 50K and Half Marathon loop courses and benefiting the Greenbelt Conservancy.
Experience the diverse terrain of South Mountain Reservation with a looped trail race offering 5K, 10K, and half marathon distances. Enjoy a mix of single track and fire roads with support provided at regular aid stations.
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