Over the past year, Colorado has had at least one half marathon discontinued, but new ones keep coming! A couple new half marathons have already been added to the half marathon calendar for 2015, including a new trail half marathon, and a new road half marathon kicking off in Denver. The Colorado half marathon calendar is going into the new year with approximately 112 official half marathon distance events. Official half marathon events are 13.1 mile or 21k distance events.
Search here for Colorado Half Marathons 2015