3M Half Marathon

3M Half Marathon takes place in Austin, Texas, on January 17, 2027. Two formats share the same 13.1-mile route, which carries about 210 feet of climbing: an individual half marathon and a two-person relay for anyone who would rather split the effort. Nicknamed Downhill to Downtown locally, the course leaves the northern neighborhoods and drops steadily along the main avenues toward the Texas State Capitol.

A net-downhill profile makes this a genuine course for a fast time, but it comes with a caveat: sustained descending pounds your quads, and going out too hard early is the classic way to arrive at mile 10 with nothing left. Include some downhill running in your build so your legs are used to the impact. Around ten live bands play along the route, a nod to Austin's reputation for live music, and crowds turn out along the whole course.