Half Marathons in Connecticut
Connecticut has 12 upcoming half marathons scheduled for 2026. Old Greenwich is the busiest city with 3 races, ahead of West Hartford (1) and New London (1).
Showing all 12
Running
Fleet Feet Hartford Summer 2026 Full & Half Marathon Training Programs
June 28, 2026
West Hartford, CT
Running
64th Annual Ocean Beach/John & Jessie Kelley Half Marathon
August 1, 2026
New London, CT
Running
Greenwich Half Marathon
Old Greenwich, CT
Running
Greenwich Half Marathon
September 27, 2026
Old Greenwich, CT
Running
Greenwich Half Marathon
Old Greenwich, CT
Running
Greenwich Half Marathon
October 1, 2026
Old Greenwich, CT
Running
Eversource Hartford Marathon, Half Marathon, Relay & Charity 5K
October 10, 2026
Hartford, CT
Running
Reservoir Run Half Marathon, 5K, Kids Fun Runs & Family Stroll
October 25, 2026
WESTON, CT
Running
Stamford Run Club 5k/10k/Half Marathon 2026
Stamford, CT
Running
Stamford Run Club 5k/10k/Half Marathon 2026
April 18, 2027
Stamford, CT
Half Marathons in Nearby States
Frequently asked questions
How long is a half marathon?▾
A half marathon is 13.1 miles (21.1 kilometers). It is one of the most popular race distances in the US, attracting over 2 million finishers annually. Browse half marathons on RACE to find one near you.
How should I train for my first half marathon?▾
Most beginner training plans are 10-12 weeks long and gradually build your weekly mileage. A typical plan includes 3-4 runs per week with one long run that peaks around 10-11 miles before race day.
What is a good half marathon time?▾
The average US half marathon finish time is about 2 hours 10 minutes. Beginners often aim for under 2:30, while competitive runners target sub-1:45. Focus on finishing strong rather than a specific pace for your first race.
What are the biggest half marathons in the US?▾
The largest include the United Airlines NYC Half, RBC Brooklyn Half, Disney Princess Half Marathon, and the Rock 'n' Roll series events in Las Vegas, Nashville, and San Diego. You can find all of these on RACE.