The Dirty Girl Mud Run debuted in Wisconsin in 2011 to a sold-out field of over 6,000 women and is back for its second anniversary on Aug. 18-19. With obstacle names like H2 Oh My God, Utopian Tubes, and "PMS" (Pretty Muddy Stuff), the Dirty Girl Mud Run is the newest way for women bond all the while helping support the National Breast Cancer Awareness Foundation.