Upcoming 5Ks in Connecticut

Endurance Grid lists one hundred forty-six 5Ks in Connecticut, from October 2026 to October 2027 across 97 cities.

146
Races
97
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 5Ks are in Connecticut?
Endurance Grid's Race Calendar lists 146 upcoming 5Ks in Connecticut, in 97 cities, from October 2026 to October 2027.
How long is a 5K?
A 5K is a running race where athletes run 3.1 miles long (5 kilometers) for time.
Which Connecticut cities host 5Ks?
5Ks in Connecticut are held in New Haven, Norwalk, Stratford, Bridgeport, Fairfield, Hamden, Litchfield, Mystic, New London, and Simsbury, plus 87 other cities.
What other race distances are available in Connecticut?
Beyond 5K, Connecticut races cover a wide range of distances. Connecticut also has 10Ks, half marathons, 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.