Peoria, AZ – The 2013 Rocky Mountain ATV MX WORCS SxS series Presented by Motoworks and Dirtwheels kicked off in a wet fashion at Canyon MX in Peoria, Arizona, and Polaris / Holz Racing’s Beau Baron dominated the new Pro SxS Production class with the win.   Dragon Fire’s Ken Benson and Black Rhino’s Greg Row rounded out the Pro SxS