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Kyle Busch ended a brief slump by winning at the Infineon Raceway in dominating fasion, leading 77 of 112 laps. He won from the 30th starting position, only the second driver to win from farther than 13th at Infineon in Nascar history. After Friday's practice and qualifying, Busch wasn't hopeful o####ood finish, but he credited his crew with making the car as dominant as it was.

"These guys worked so hard," said Busch. "This is really special. We came a long ways with this thing. That's what makes me so proud of this team."

All day long Busch's competitors fell from contention one after the other, most notably after restarts. Among the drivers who were spun from contention were Greg Biffle, Juan Pablo Montoya, Marcos Ambrose, Kurt Busch and Robby Gordon, whose chances of winning were lost in four separate incidents.

However on penultimate restart, four top-10 cars, including second through fourth, were all taken out in one incident in turn 7 when Kevin Harvick got loose heading into the corner and made contact with Jamie MacMurray, who then spun into Busch's teammate Tony Stewart, who was running second.

Ron Fellows, who was running 6th, also became involved when he tried to avoid the incident and went into the sand, getting stuck and relegating him to a 29th place finish.

A frustrated Stewart simply said after the incident, "I haven't seen it, so it's not fair to comment on that."

Stewart would recover to finish 10th, gaining nine positions on the final restart while McMurray would muster an 18th place finish, but Kevin Harvick suffered the most as he finished 30th, and at the end of the day he had fallen three positions in the points standings to 13th, outside the field of drivers eligible for the Chase.

That incident set up one final restart, with Busch running away from the field in the final two laps to win easily. He's won on just about every type of track this year, winning at the 1.5 mile Atlanta, the sweeping banks of the Talladega Superspeedway, taming the Lady in Black and at Dover, and now at the road course in Sonoma, his first finish better than 7th on a road course.

Behind Busch was David Gilliland in 2nd, the best finish of his career, and road-course ace Jeff Gordon, who was impressed by Busch's performance.

"I am really impressed with Kyle," Gordon said. "I've been around him, and I didn't think he's a really good road racer. So I think you've got to give that guy a lot of credit for his talent."

Kasey Kahne earned the pole on Friday, indicating that he would be able to continue his hot streak that has seen him earn three top-2 finishes in four races. However, after leading the first four laps was never a factor, as he finished 33rd.

Marcos Ambrose's day didn't end any better than Kahne's, though Ambrose had run up front all race in his first Sprint Cup start before being spun by Elliott Sadler, leaving him with a disappointing 42nd place finish.