Defending champion Chad Reed of Australia opened his AMA Motocross season with a victory in the 450 class on Saturday night.
Eli Tomac of Cortez, Colo., won the 250 class in his professional debut.
Reed won the first moto but had to work his way through the field after a poor start in the second moto, finally passing fellow Australian Brett Metcalfe for third.
Mike Alessi of Victorville, Calif., finished second and Davi Millsaps of Murrieta, Calif., finished third.
Five-time champion Jessica Patterson of Tallahassee, Fla., swept both motos to win the women's race. Ashley Fiolek of St. Augustine, Fla., was second and Troy Lee of Winter Garden, Fla., was third.
