Briscoe edged Ed Carpenter by inches to win at Kentucky. The Team Penske driver also won the season-opener on the streets of St. Petersburg, FL. Carpenter recorded his career-best finish in the series with his second-place run.

With five races remaining this season, the IndyCar Series title is shaping up to be a three-man battle.

"It's very exciting to be in this title hunt and going for a championship," Briscoe said. "It seems like all of us at the front there have trouble hanging on to the points lead. So that's going to be the first goal and really the guys are watching Dixon and Franchitti. I want to be in front of those guys. That's the number one goal."

The 300-mile race at Kentucky featured a season-high 20 lead changes. The event featured the new aero package, which provides more down force for the cars. Kentucky also marked the debut of the Honda overtake assist button. Brief bursts of additional horsepower are made available to drivers through a "push to pass" button on their steering wheels.

The button will be used for the first time on a road/street course this weekend when the series heads to 2.258-mile, 13-turn Mid Ohio Sports Car Course.

"I'm curious to see how effective the push-to-pass button will be," Briscoe said. "I don't think we'll feel the horsepower at all, but we will feel the 200 RPMs which is kind of maybe the opposite to what we were getting in Kentucky."

Briscoe captured his second career IndyCar victory one year ago at Mid-Ohio. Key pit strategies helped Briscoe throughout the race, as he led 43 of 85 laps. He finished seven seconds ahead of teammate Helio Castroneves. Penske recorded its first one-two finish since 2005 at Phoenix.

Dixon won the inaugural event at Mid-Ohio in 2007.