Tarrywile Half Marathon

Sunday, November 17, 2024 • Danbury, CT • Course Map

Tarrywile Half Marathon in Danbury, CT

“This in a nutshell is not an easy course!” That’s what the organizers at Steep Endurance, which manages a series of beautifully scenic trail races in the Northeastern U.S., have to say about this fall race on the Sunday before Thanksgiving, which unfolds along the trails in Tarrywile Park, nestled among the mountains just south of Danbury.

Runners will follow a double loop course for the race, starting from the park entrance at the northern end of Tarrywile Park, whose history dates back to the early decades of the 20th century and includes the famed Hearthstone Castle, a three-story, 16-room castle built back in 1895 and listed today on the National Register of Historic Places.

Once you leave the starting line and head onto the trails, you’ll begin a very hilly and challenging route, with plenty of rocky and “rooty” stretches that you’ll have to watch your step on. To give you an idea of your estimated time, organizers say take your typical road half marathon time and add 20 to 30 minutes onto it.

Along the way, you’ll see plenty of wide open meadows, wooded forest areas and lakes, and you’ll run past the Hearthstone Castle twice (on each loop around).

The park lies just a few minutes’ drive from downtown Danbury, and organizers say to look for “the Red Barn across from the big silo,” once you get to the park.

Parking for runners will be available in the lower gravel parking lot at Tarrywile, across the street from Tarrywile at Immaculate High School, and on Washington Avenue next to the park.

Race Weather & Climate

Danbury is a city located in Fairfield County, Connecticut, situated in the southwestern part of the state. It’s approximately 8 miles from the New York border and offers residents an urban lifestyle with access to a range of cultural, educational, and economic opportunities.

In Danbury, CT, on November 17, you can expect an average high temperature of about 49°F and an average low temperature of around 32°F. This time falls in late autumn, with cooler temperatures and the possibility of frost. November typically brings moderate rainfall, averaging about 3.3 inches of precipitation for the month.

Tarrywile Half Marathon Course Map

See the race route map for the Tarrywile Half Marathon here.

Starting Time

8:00 AM

Course Time Limit

4 hours


  • $60 through August 31
  • $70 Aug. 1 – October 31
  • $80 on November 1 and after


To reserve your spot in the Tarrywile Half Marathon, register online at the event website here.

Tarrywile Half Marathon Race Website



Ever run in the Tarrywile Half Marathon? Share your impressions here, as well as anything you learned about the race that you think other runners/walkers should know.

See more races in: November, Connecticut