Horsetooth Half Marathon

Horsetooth Half Marathon is run in Fort Collins, Colorado, on April 18, 2027, with a single start at 8:00 a.m. The half marathon (13.1 miles) is the only distance on the schedule, so the whole field lines up together.

A one-distance road half keeps the morning simple: one wave, one finish line, no shuffling between events. It suits a runner who wants a spring time trial before summer training, whether that means a first 13.1 or a serious attempt at a personal best. Twelve weeks of consistent mileage with a weekly long run and one tempo session will cover it. Pace yourself through the opening miles rather than chasing the fast starters.