Coming into the Dirt Nitro Challenge, the Arizona-born Maifield was neck-and-neck with frequent competitor Dakota Phend for the top U.S. driver slot. At 38, Maifield has raced for longer than Phend, ...

KENNESAW, Ga., March 28, 2018 (GLOBE NEWSWIRE) -- Yamaha Motor Corp., USA, has loaned two of its prototype R1DT racecars to the Cory Kruseman Dr ...