The 4th Annual Oak Mountain Adventure Race (OMAR) will take place on Saturday, March 21, 2026, starting at the South Trailhead Parking inside Oak Mountain State Park in Birmingham, Alabama. Teams will explore the park’s stunning mountains, creeks, waterfalls, lakes, trails, and forests—home to some of the best mountain biking in the state. With over 50 miles of established trails and more than 1,500 newly developed acres soon to be open, OMAR promises a challenging and scenic course. Divisions include solo, 2-, 3-, or 4-person teams (coed or open), as well as a Master’s division. 24 Hour and 10 Hour Events.