Upcoming marathons in Connecticut. Use filters to quickly find races by month, city or race type.
More races:ย USA running calendar
Date Race Distance Location hf:tax:monthandyear hf:tax:city hf:tax:typerace 03/29/2025 Savin Rock Marathon 13.1M, 26.2M West Haven CT 03-march west-haven-ct trail 05/14/2025 Nutmeg State Marathon 13.1M, 26.2M Hartford CT 05-may hartford-ct roadrace 06/09/2025 New England Series 10K, 13.1M, 26.2M, 50K, 5K Simsbury CT 06-june simsbury-ct roadrace 10/05/2025 NipMuck Trail Marathon 26.2M Ashford CT 10-october ashford-ct trail 10/11/2025 Eversource Hartford Marathon 13.1M, 26.2M, 5K Hartford CT 10-october hartford-ct roadrace 10/11/2025 Hartford Marathon 13.1M, 26.2M, 5K Hartford CT 10-october hartford-ct roadrace 10/12/2025 Mohawk Mountain Race 10K, 13.1M, 26.2M, 5K Cornwall CT 10-october cornwall-ct trail 10/18/2025 Tackle the Trail (TM) 10K, 13.1M, 26.2M Northeast CT 10-october northeast-ct trail 10/18/2025 Tackle the Trail Marathon 10K, 13.1M, 26.2M Windham CT 10-october windham-ct trail