On Championship Sunday at the 50th annual Mammoth Motocross, Thunder Funding Race Team rider Levi Newby and Brock Papi put on a 450B battle that had the announcers calling it "One of the best performances of the weekend!" Dicing bar-to-bar with fighter pilot precision, Newby fought his way to a jaw-dropping victory that put his competitors on notice: Levi Newby is on the gas and headed straight to the top.