Central Arizona Raceway

The pole-starting Peterson, of Hickson, N.D., led all but two laps to win Thursday's $2,000 Ernie Mincy Early Thaw fourth round, collecting his second victory of the six-race miniseries. ... Third-starting Clay Stuckey led laps 11-12 before settling for second, 0.600 of a second back. ... Ricky Weiss improved 10 positions and finished fourth. ... Winner of the two opening rounds, Billy Moyer gained three spots and rounded-out the top five. ... Charlie Olsen, Matt Sparby, Dustin Strand and Dustin Bluhm won heats. ... Matt Aukland won the consolation.