American Motorcyclist Association (AMA) PICKERINGTON, Ohio, Monday, 17 Oct 2011 In partnership with the ATV Promoters Group (ATVPG), the American Motorcyclist Association (AMA) is pleased to announce the schedule for the 2012 AMA ATV Motocross National Championship Series, presented by DWT. The 10-round series will kick off March 24-25 at Millcreek in Pell City, Ala., and wrap up Aug. 11-12 at the Loretta Lynn Ranch in Hurricane Mills, Tenn.