Hillacious Half-Marathon

Hillacious Half-Marathon takes place in Litchfield, Connecticut, on November 16, 2026, with a single half marathon (13.1 miles). The course runs through the forests of the Northwest Hills, and, as the name promises, the profile is anything but flat: this is a half marathon defined by its climbing, not a fast, level road race.

This event is for you if you're looking for a demanding half marathon where elevation is the challenge, set in the wooded landscape typical of northwestern Connecticut. Prepare accordingly. Build your long runs on rolling or hilly terrain, add a weekly session of hill repeats, and practice running downhill under control, since the descents will tire your legs as much as the climbs. Pacing by effort rather than by pace is the rule here, so leave your flat-course PR goal at home and aim for a steady, even effort you can hold to the finish. A 12-week build with a weekly long run reaching 11 miles on hills is a sensible plan.