BMW Dallas Marathon, Half Marathon and Behringer Relay

BMW Dallas Marathon, Half Marathon and Behringer Relay spans December 11–13, 2026, in Dallas, Texas. A Friday night 1 mile opens at 7:00 PM, the 10K and 5K run on Saturday at 8:00 and 8:10 AM with a 5K walk at 8:15, and Sunday brings the marathon, half marathon, five-person Behringer relay and the marathon relay at 8:00 AM, plus a 50K ultra. It is the oldest marathon in Texas and the largest in Dallas, drawing runners from around the world; created in 1971, it has grown into a multi-race festival and an official Boston Marathon qualifier, with a 26.2-mile course through downtown, Deep Ellum and Uptown, and a busy health and fitness expo.

Boston qualifier status makes the marathon a serious target: plan a 16- to 20-week build with a weekly long run reaching 20 miles and marathon-pace work in the final weeks. If a full is too much this year, the relay lets you split it with a team.