Traprock 50

APR
17
2027
Trail races in Bloomfield CT at Penwood State Park offering 50K or 17K on rocky single track and double-track loop courses.
Sat 17 Apr 2027
50 kilometers 17 kilometers

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About the race

Traprock 50 is a trail running event held in Bloomfield, CT at Penwood State Park. The course is a loop of approximately 10.5 to 11 miles per loop. Two race options use the same loop:

  • 50K three loops
  • 17K one loop

The route is rolling and contains about half technical single track on the Metacomet Trail; the remainder is double-track. Much of the course runs on forest roads or single track that can be extremely rocky. The organizer recommends entrants have sufficient recent running experience such as a recent road or trail marathon.

The event is organized by the CT Trailmixers, a volunteer non profit trail running club. Race proceeds go to local organizations including the Simsbury Land Trust and the Connecticut Forest and Parks Association. The race operates as a cupless event so participants should bring a personal cup or handheld bottle. A course map is available on AllTrails.

Operational notes from the organizer: when the race reaches capacity a waitlist opens and runners are selected in registration order; selected runners have two days to accept an entry. Registrants who cancel before March 1 receive a 50 percent refund; there are no refunds after that date and no bib transfers or deferrals. Quality tech shirts are available for separate purchase. Visit the organization's website for the most recent information.

50 km
50k
17 km
17k

Events nearby

A 10K trail loop in Bloomfield CT on November 1, 2026, on technical single track in Penwood State Park with a three hour cutoff and proceeds supporting NAMI.
A fundraising 5K at Riverside Park supporting Riverfront Recapture's Community Rowing Program with running, rowing, and erg events.
Trail event at YMCA Camp Sloper offering a 400 minute timed loop race and a 4 mile two lap option on a flagged, roughly two mile trail course.
An accurately measured 8K cross-country race at the MDC Reservoir Complex in West Hartford with gravel, trails and fields and USATF sanction pending.
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