TARC Fall Classic

Carlisle, United States • 5 Sep 2026

Trail Animals Running Club Fall Classic : Great Brook Farm State Park

The Trail Animals Running Club Fall Classic is scheduled for Saturday, September 5, 2026, at Great Brook Farm State Park in Carlisle, Massachusetts, with the start/finish at Hart Barn Ski Center, 1018 Lowell St. Distances offered include:

  • 10K
  • Half marathon
  • 20 mile
  • 50K
  • 50 mile
  • Yeti Mischief Mile
  • Free youth fun run (about 0.5 miles around the corn field)

Course, aid, and event policies

The 50M, 50K, and 20M use a 10 mile loop with aid stations every 3 to 4 miles; 20M runs two loops, and 50K adds field laps for the extra mileage. The Half and 10K use a 10K loop with aid primarily at the start/finish area. The youth course is fully flagged and staffed by volunteers. The trail is marked with flagging and signs; organizers recommend downloading the GPX file for navigation. This is a cupless race, and participants must bring their own hydration. Aid stations provide water, hydration drinks, fruit, salty snacks, sandwiches, sweet snacks, vegan options, and pickles; offerings are vegan friendly.

The event enforces time cutoffs for long distances (50K/50M have a 13 hour completion window) and additional cutoffs at a road crossing. Pacers are not allowed; crew access is limited to the start/finish aid station. Registration closes before race week, the event can sell out, and there is no race day registration. Entry cost is $25 for paid distances; the youth fun run is free and youth entries (19 and under) receive a $10 discount for paid distances. The event follows Leave No Trace principles and has provisions for adaptive athletes with organizer approval. Parking is limited, with roughly 500 spaces and a park parking fee of $3 per car. Visit the organization's website for the most recent information.

Race information

50 mi
50 Mile
50 mi
50 Mile Waitlist
50 km
50k
50 km
50k Waitlist
20 mi
20 Mile
20 mi
20 Mile Waitlist
21 km
Half Marathon Waitlist
21 km
Half Marathon
10 km
10k
10 km
10k Waitlist
Free Youth Fun Run
Free Youth Fun Run Waitlist
Yeti Mischief Mile Endurance Division
Yeti Mischief Mile Endurance Division Waitlist
Yeti Mischief Mile Relay Division
Yeti Mischief Mile Relay Division Waitlist
Yeti Mischief Mile Solo Division
Yeti Mischief Mile Solo Division Waitlist
Visit the organization's website for the most recent information.
Trail runs nearby

The TARC Stone Cat Trail Festival is a renowned trail running event held annually in Ipswich, Massachusetts, within Willowdale State Forest. Offering a variety of distances including 10K, half marathon, marathon, 50-mile, and 100K races, pl..

Run the 21st annual GFRC Busa Bushwhack on November 2, 2025 in Framingham, tackling scenic, technical trails in Callahan State Park over 5.3 or 10 miles. Finish at Brophy Elementary, grab a cooling towel and compete for log trophy awards.

Get muddy and celebrate at Hoppy Trails 6K on November 8 at Adams Farm in Walpole, MA. Two scenic wooded loops finish with a beer garden, food trucks and adidas demos for a fun post race party.

Run scenic single track and forest roads at the Upton 10.5K and Half Marathon, a hilly, technical trail challenge in Upton State Forest. Enjoy a small field, post race fire pits, hot soup and chocolate, and support local charities.

Join the TARCkey Trot, a six hour timed challenge at Wright Locke Farm on November 15, 2025, running multiple 5K trail loops over rocky rollers. Tackle as many laps as you like while supporting land conservation.

Join Windham Woods School for the 2nd annual Thankful Trails 5K Run and Walk through scenic campus trails, plus a free Kids Fun Run on the Lower Field for ages 8 and under. Family friendly with raffle, awards, and lunch to celebrate communi..