Connecticut might be a small state, but it packs a big punch when it comes to half marathon scenery, charm, and variety. With races ranging from beachside courses to rolling country roads, the Nutmeg State serves up some memorable 13.1-mile adventures. As summer fades into fall, the cooler temps make for ideal running conditions—perfect for chasing a PR or soaking in the autumn colors. Here are four upcoming half marathons in Connecticut worth putting on your calendar.
64th Annual Ocean Beach/John & Jessie Kelley Half Marathon
Date: Saturday, August 1, 2026
Location: New London, Connecticut
Start your season early with this classic seaside race. Now in its 64th year, the Ocean Beach Half Marathon is one of New England's oldest and most beloved road races. The course follows a scenic route along the coast, offering ocean views and a flat, fast profile that's great for first-timers and speedsters alike. The finish at Ocean Beach Park adds a festive post-race vibe—think beach, boardwalk, and a well-deserved dip in the Long Island Sound.
Hogsback Half Marathon
Date: Saturday, September 26, 2026
Location: Colebrook, Connecticut
If you're ready for a challenge, the Hogsback Half Marathon delivers. This trail race takes you through the rugged hills of northwestern Connecticut, with plenty of elevation gain to test your legs and your grit. But the reward is stunning forest views and a low-key, welcoming atmosphere that trail runners love. It's a great option if you want to step away from road racing and into the woods before the fall colors peak.
Garavel SoNo Half Marathon | 5K
Date: Sunday, October 4, 2026
Location: Norwalk, Connecticut
Just a month later, head to Norwalk for the Garavel SoNo Half Marathon. This race has earned a reputation as a runner favorite, with a fast, USATF-certified course that winds through the historic South Norwalk neighborhood and along the harbor. The flat terrain is ideal for chasing a personal best, and the post-race party in Washington Village—with food, music, and local brews—makes it a full Sunday celebration.
Eversource Hartford Marathon, Half Marathon, Relay & Charity 5K
Date: Saturday, October 10, 2026
Location: Hartford, Connecticut
Capping off the fall season is the Eversource Hartford Half Marathon, part of the city's flagship marathon weekend. With a top-tier quality score, this race draws runners from across the region for its well-organized event, enthusiastic crowd support, and a course that showcases Hartford's parks, riverfront, and historic landmarks. The half marathon starts and finishes near the state capitol, making it a memorable tour of the capital city. Whether you're gunning for a PR or just want a fun day out, this one delivers.
With options ranging from coastal flat to trail rugged, Connecticut has a half marathon for every kind of runner. The summer and fall calendar is packed with great races, so you've got plenty of time to pick your date and start training. Ready to find your next 13.1 in the Constitution State? Browse all half marathons in Connecticut and start planning your adventure.