ATLANTA -- James Stewart raced to his first 450SX Class victory of the AMA Supercross season Saturday night, leading all 20 laps in the main event in front of 68,987 fans at the Georgia Dome.

Stewart, the Yoshimura Suzuki rider from Haines City, Fla., finished 1.468 seconds ahead of Ryan Villopoto.

"I mean, what can I say, we won," Stewart said. "This whole season has been going crazy and to get a victory and to get a start, it was almost a perfect day. I was fastest in practice, fastest in the heat race, I got the holeshot in the main event and led every lap. I'm not going to lie, I was a little nervous because I haven't been out there in a while."

Honda's Wil Hahn won the Eastern Regional 250SX Class for his first career victory.

"I put in a lot of hard work, and it paid off here," said Hahn, from Decatur, Texas. "I stayed positive out there and rode a smart race. It's an amazing feeling to get my first win here at the Georgia Dome in front of so many fans. This has been a long time coming."