Sign up on Saturday, Oct. 6, 2012. Registration starts at 7:00 am. Race begins with first wave at 9 am and last at 11 am. Or you can register online at http://terrainracing.com/register/tucson Conquer Your terrain Terrain challenges you both physically and mentally with over 20 obstacles! Choose a 3 or 5+ mile option, and after your race party at the finish line with friends, family, mud and views of the obstacles you just conquered.