Nipmuck South Trail Race

Mansfield, United States • 14 Jun 2026

Nipmuck South Trail Race : June 14, 2026

The event is a pair of trail races held at the picnic area in Mansfield Hollow State Park in Mansfield, CT, organized by the Shenipsit Striders. Parking is near the start/finish area and participants are asked to follow directions from volunteers.

Distances:

  • 15.7 miles out and back on the Nipmuck Trail.
  • 5K new loop inside Mansfield Hollow State Park, all trails, no road crossings.

The 15.7 mile course runs mostly on the Nipmuck Trail alongside the Fenton River and includes three water stops and support at road crossings. Terrain includes small bridge crossings, fields and woods, a climb to a 50 foot cliff, and a finish near Old Turnpike Road by Route 44.

The 5K course, new for 2026, mixes runnable single-track and longer trail sections including the Flood Line Trail, Blue Trail and a Yellow Trail loop. The route is marked with flagging and signs and features technical sections and several short steep hills in the final mile.

Proceeds will go to Connecticut trail stewardship organizations such as the Connecticut Forest and Park Association, Joshua’s Trust, and the Northern Connecticut Land Trust. Pre-registration is recommended; race day registration is accepted at a higher price for cash payments. Race shirts are available as an add-on when registering and must be ordered before May 22. Visit the organization's website for the most recent information.

Race information

16 mi
15 Miler
5 km
Visit the organization's website for the most recent information.
Trail runs nearby

A last person standing event on rugged Ragged Mountain in Berlin CT where runners repeat a roughly 3.11 mile loop each hour until one runner remains. Entry is limited to 55 and proceeds support local trail and youth running programs.

New for 2026: an all-new Soapstone Mountain Half Marathon and a 6K Sampler in Stafford Springs, CT, both routed through Shenipsit Forest and past the Soapstone fire tower. The event is part of the Blue Blazed Trail Running Series and suppor..

A community campus race in East Haddam with a 1.75 mile loop, kids races on the soccer field, water stops and reused trophy awards. The course is mainly packed dirt with hills and a fast downhill finish.

A one-day return of the Somers Summer 5K on May 17, 2026 at Field Road Park; entry is free and registration runs from August 28, 2025 to May 16, 2026. Proceeds support improvements to the park fitness trail.

Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.