The USA's top bodybuilders converge in Las Vegas for an unforgettable weekend of non-stop muscular competition. USAMuscle Video is there to bring you exclusive and all-access video coverage of one of the year's most highly-anticipated contests. This Prejudging Part 1 video features all bantamweight, lightweight, welterweight and middleweight bodybuilders as they engage in side-by-side class comparisons and their individual mandatory poses for the judges. Presented entirely in head-to-toe full-body shots. • 57 minutes