Upcoming Half Marathons in Connecticut

Endurance Grid lists twelve half marathons in Connecticut, from October 2026 to October 2027 across 12 cities.

12
Races
12
Cities
8
Sports

Running races in Connecticut

Your next race is out there. Go find it.

All Connecticut Running Races

Frequently Asked Questions

How many half marathons are in Connecticut?
Endurance Grid's Race Calendar lists 12 upcoming half marathons in Connecticut, in 12 cities, from October 2026 to October 2027.
How long is a half marathon?
A half marathon is a running race where athletes run 13.1 miles long (21.1 kilometers) for time.
Which Connecticut cities host half marathons?
Half marathons in Connecticut are held in Cheshire, Fairfield, Hebron, Litchfield, New Haven, Northeast, Norwalk, Old Greenwich, Ridgefield, and Roxbury, plus 2 other cities.
What other race distances are available in Connecticut?
Beyond half marathon, Connecticut races cover a wide range of distances. Connecticut also has 5Ks, 10Ks, and marathons for running races. Additionally, Endurance Grid's Race Calendar also covers other sports, with aquabike, road cycling, duathlon, paddle, running, trail running, triathlon, and ultra races of various distances.