Hartford Half Marathon 2025 Registration. Register today for the eversource hartford marathon or half marathon, connecticut's premier marathon and half marathon! Find high quality races across ct in distances from 5k to marathon, plus duathlon/triathlon.

2025 eversource hartford marathon and half marathon, team 26.2 relay & charity 5k. Hmf events include 5k, 10k, 10 mile, half.