Upcoming Running Races in Connecticut

Endurance Grid lists 163 running races in Connecticut, from October 2026 to October 2027 across 97 cities.

163
Races
97
Cities

Running Races in Connecticut

The running race calendar in Connecticut is busiest in November, October, and December, with races most often in Roxbury, Fairfield, Norwalk, and Stratford.

What running races are

Organized running races are one of the most accessible entry points into endurance sports. There’s a distance for every fitness level and a community at every start line. Distances run from 1-mile fun runs and 5Ks up through the 10K, half marathon, and marathon.

Most races are timed and chip-scored, with a mass or wave start and aid stations along the course. Big-city races keep the noise going the whole way; smaller races give you long stretches where it’s just you and the miles.

Frequently Asked Questions

How many running races are in Connecticut?
Endurance Grid's Race Calendar lists 163 upcoming running races in Connecticut across 97 cities, from October 2026 to October 2027.
What running distances are offered in Connecticut?
Running races in Connecticut include 1 Mile, 10 Mile, 100 Mile, 100K, 10K, 15K, 1K, 2 Mile / 3K, and more distances.
When is running season in Connecticut?
Running season in Connecticut runs spring through fall. Of the upcoming running races on Endurance Grid's Race Calendar, the most are in November and October.
Which Connecticut cities have running races?
Running races in Connecticut are held in Roxbury, Fairfield, Norwalk, Stratford, New Haven, West Hartford, Litchfield, Mystic, Brookfield, and Hamden, plus 87 other cities.

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