Share on Facebook Share on Twitter 2012 Autozone Powerboat Championship - Powerboat Superleague racing in Memphis, TN Video of 2012 Autozone Powerboat Championship - Powerboat Superleague racing in Memphis, TN Select ratingGive it 1/5Give it 2/5Give it 3/5Give it 4/5Give it 5/5 Average: 2.3 (3 votes) The 2012 Autozone Powerboat CHampionship took place in Memphis, Tenn., on Oct. 13th and 14th on the Mississippi River.