Jason Anderson won the season-opening AMA Supercross race at Angel Stadium on Saturday night for his first career 450SX victory.
The Husqvarna rider took the lead from Honda's Cole Seely with seven laps left in the 20-lap race. The victory also was Husqvarna's first in 450SX.
"Honestly, I just felt great out there tonight," said Anderson, from Rio Rancho, New Mexico. "I was coming through the pack and just made it happen. You work hard to do this as a kid."
Defending series champion Ryan Dungey of KTM rallied to finish second. Seely was third, followed by Kawasaki's Eli Tomac, Suzuki's Ken Roczen, Yamaha's Chad Reed and Honda's Trey Canard.
Two-time series champion James Stewart of Suzuki crashed in the opening laps after contact with Dungey to bring out a red flag. Dungey went down soon after the restart, but quickly got back into the race.
"I got off to a good start on the restart, but crashed," Dungey said. "I am glad to have rebounded and to have a solid finish."
Stewart finished 22nd.
Yamaha's Cooper Webb won the Western Regional 250SK Class race, taking the lead from KTM's Jessy Nelson with five laps left. Webb won the Western Regional season title last year.
"It's awesome to start the season like this," Webb said. "I don't like to lose, so this really makes tonight great. I was patient and pulled it off. I'm look forward to next weekend in San Diego."