Nipmuck South Trail Race

Event Information

The Nipmuck South Trail Race takes place at Mansfield Hollow State Park in Mansfield, Connecticut. Parking is available close to the start and finish area in the park's picnic area, with volunteers providing instructions.

Distances

The event offers two race distances:

• A 15-Miler (approximately 15.7 miles)
• A 5K

Course Details

Both races start in the Mansfield Hollow State Park picnic area. The 15-Miler is an out-and-back course mostly on the Nipmuck Trail. It follows the Fenton River and features varied terrain including fields, woods, small bridge crossings, and a climb to a 50-foot cliff. There are three water stops and support at road crossings. The 5K course is new for 2026 and is contained entirely within Mansfield Hollow State Park with no road crossings. It includes runnable single-track trails, a forest loop, and some technical terrain on the final loops, which feature a few hills.

Registration and Amenities

Pre-registration is recommended. Race-day registration is available at a higher price and is cash-only. Race shirts can be purchased as an add-on during registration, with orders closing before May 22.

Beneficiaries and Organizer

Proceeds from the race benefit Connecticut trail stewardship organizations, including the Connecticut Forest and Park Association, Joshua’s Trust, and the Northern Connecticut Land Trust. The event is organized by the Shenipsit Striders trail running club, a nonprofit founded in 1975. The race is also part of the Blue Blazed Trail Running Series. Visit the organization's website for the most recent information.