Half Marathons in Connecticut
From first-timer-friendly flats to trails worth traveling for, find a Connecticut half marathon that fits your goals and your sense of adventure.
27
upcoming races
27 races
Mystic Half Marathon & 10K · Mystic, Connecticut
2026 Hamden Hills Half Marathon & Flat 5K · Hamden, Connecticut
Mine Hill Half Marathon · Roxbury, Connecticut
Nutmeg State Marathon · Hartford, Connecticut
Hamden Fest Half Marathon & 5k · Hamden, Connecticut
Athletic Brewing Company Fairfield Road Races · Fairfield, Connecticut
UConn Health Half Marathon · Simsbury, Connecticut
2026 New England Series - Day 1 (CT) · Simsbury, Connecticut
64th Annual Ocean Beach/John & Jessie Kelley Half Marathon · New London, Connecticut
The Perfect Ten & Five Mile Road Race · Hamden, Connecticut
Newtown Community Running Event · Newtown, Connecticut
Faxon Law New Haven Road Race · New Haven, Connecticut
2026 Dave Parcells Madison Triathlon · Madison, Connecticut
2026 Gulf Beach Half Marathon · Milford, Connecticut
Hogsback Half Marathon · Colebrook, Connecticut
Garavel SoNo Half Marathon | 5K · Norwalk, Connecticut
Norfolk Land Trust Trail Race Series/Haystack Mountain Challenge · Norfolk, Connecticut
Eversource Hartford Marathon, Half Marathon, Relay & Charity 5K · Hartford, Connecticut
Mohawk Mountain Race · Cornwall, Connecticut
Tackle the Trail (TM) · Northeast, Connecticut
The Ridgefield Road Fest 50th ANNIVERSARY: 1/2 Marathon, 7-Miler, & Iris Fund 5K · Ridgefield, Connecticut
Reservoir Run Half Marathon, 5K, Kids Fun Runs & Family Stroll · WESTON, Connecticut
Roxbury Fall Classic · Roxbury, Connecticut
Hillacious Half Marathon · Litchfield, Connecticut
Tarrywile Half Marathon · Danbury, Connecticut
Storybook Half Marathon · Stratford, Connecticut
Savin Rock Marathon · West Haven, Connecticut