Exhibition Hall will be the venue for the Roller Derby bouts for this date and the theme is “M.Echanical R.Olling D.Evices.” Fans can watch the Unholy Rollers vs. the Quad Squad and the Vaudeville Vixens will try to best the Visiting Team. All the action will start at 6pm, and doors will open at 5pm. Tickets are $10 in advance or $12 at the door. Kids 4-10 are half-price and under 4 are free. Visit www.alliantenergycenter.com for more information.