Connecticut Half Marathons in October
Browse all Connecticut Half Marathons in 2026 and 2027 by month and by city below. For each race, you’ll find the history of the half marathon and the course, the most recent year’s course maps, elevation profiles, runner reviews, pricing, and how to sign up.
We dedicate hours every month searching for races to include in the Connecticut Half Marathons calendar. If you happen to see any half marathon not included, contact us at [email protected] to submit your race.
Filter Connecticut Half Marathons
Race Size
Difficulty
Scenery
Type
Perfect For
Distances
Filter Connecticut Half Marathons
Race Size
Difficulty
Scenery
Type
Perfect For
Distances
Featured Race
May 3, 2026
100-500 runners
Gloucester, Massachusetts
- Half Marathon, Road
Featured Race
May 9, 2026
100-500 runners
South Hamilton, Connecticut
- Half Marathon, Road
October 4, 2026
1-100 runners
Norfolk, Connecticut
- 10K, 5k, Half Marathon, Trail
October 4, 2026
500-1000 runners
Norwalk, Connecticut
- 5k, Half Marathon, Road
October 10, 2026
1,000-10,000 runners
Hartford, Connecticut
- 5k, Half Marathon, Marathon, Road
October 11, 2026
1-100 runners
Cornwall, Connecticut
- 10K, 5k, Half Marathon, Marathon, Trail
October 17, 2026
1-100 runners
Northeast, Connecticut
- Half Marathon, Marathon, Trail
October 18, 2026
100-500 runners
Gloucester, Connecticut
- Half Marathon, Road
October 18, 2026
100-500 runners
Ridgefield, Connecticut
- Half Marathon, Road
October 25, 2026
100-500 runners
Weston, Connecticut
- 5k, Half Marathon, Road
Running in Connecticut
FAQ
What are the most popular Connecticut half marathons?
The Mystic Half Marathon, the UConn Health Half Marathon and the Hartford Half Marathon are the three most popular half marathons in Connecticut.
What’s the best half marathons in Connecticut for beginners in 2026?
Our favorite half marathons in Connecticut are the Mystic Half Marathon for it’s scenic New England coastal course and large running field. We also love the Fairfield Road Races Half Marathon for beginners because of it’s easy and scenic course along Jennings Beach.
Which Connecticut cities have half marathons?
