Roger Penske came up with a surprising strategy Sunday that Ryan Briscoe turned into his second IndyCar Series victory, but the buzz was still on Saturday's confrontation between Danica Patrick and fellow female IRL driver Milka Duno.

After finishing a practice run and getting out of her car, Patrick quickly walked to where Duno, the only other woman racing here this weekend, was pitted and argued with the less experienced driver about getting in her way several times during the practice.

The altercation lasted only about a minute, but witnesses said it grew heated and that Duno flung a towel in Patrick's direction at one point as the two exchanged words. Patrick eventually walked away.

Click here to see the video on YouTube.

Patrick, who has previously confronted fellow drivers Briscoe and Dan Wheldon after racing incidents, brushed off the latest dustup, saying, "I just wanted to know if she saw me out there."

Duno was not immediately available for comment.

Things didn't get better for Patrick after the confrontation.

In the No. 20 spot in Sunday's starting grid, Patrick ran a consistent race to finish 12th. Because of a wet track at the start, Patrick had to pit early in the race and that led to her going green down the stretch.

"I had to conserve fuel the last stint of the race," she said, "but I was able to gain some positions and get some points."

A year ago, Patrick started second but was nearly wiped out in a first-lap accident along with Andretti Green teammates Marco Andretti and Dario Franchitti.