JOLIET, Ill. — Ryan Briscoe did his best Sam Hornish Jr. impersonation Saturday night, staging a last-second, on-the-outside pass for an IndyCar Series victory in Team Penske’s No. 6 car at Chicagoland Speedway.

Briscoe edged reigning series champion Scott Dixon by 0.0077 seconds, a distance of 28 inches in the fourth-closest finish in series history. His lead in the standings is 25 points with two races left.

“The side draft just pulled me up there,” Briscoe said. “I wasn’t even sure we had won it.”

Team owner Roger Penske helped Hornish win the 2006 title, and now Briscoe is in control.

“That’s the best I’ve ever seen you run,” Penske told his driver in victory lane.

Briscoe overcame a mid-race pit stop miscue that dropped him from third to eighth. The lead officially changed hands five times in the final six laps, and Dixon was committed to the bottom line.

“I’ve seen this movie several times,” he said. “He timed it right.”