After each race of the IndyCar Series season, ESPN.com open-wheel correspondent John Oreovicz will rank the top 10 drivers in the series. Don't agree with Oreo's list? Let him -- and the whole world -- know in the Conversation section at the bottom of the page.

New this week
None.

Dropped out
None.

Biggest movers
Graham Rahal moved up three spots from ninth to sixth, Tony Kanaan from 10th to seventh.

Biggest losers
Marco Andretti dropped three spots from sixth to ninth, Justin Wilson from seventh to 10th.

2009 IndyCar Series Power Rankings - Week 13
	RK(LW)	DRIVER	TOP 10s	COMMENT
	1 (3)	Ryan Briscoe	9	Finally another victory for Briscoe after five second-place finishes, and in spectacular fashion to regain the IndyCar Series championship lead. Did a great job of racing Ed Carpenter cleanly at Kentucky despite strong resistance in the closing laps.
	2 (2)	Dario Franchitti	10	Missed valuable practice laps at Kentucky, where track time was at a premium. Faded midrace but bounced back to edge his teammate Scott Dixon, albeit by only one spot for sixth place. Has Penske pulled ahead of Ganassi?
	3 (1)	Scott Dixon	10	Led the most laps at Kentucky but was unable to remain with the lead pack in the final stint. Still well placed to repeat as IndyCar Series champion, but headed to a series of tracks where the Penske team recently has held the advantage.
	4 (4)	Helio Castroneves	8	Helio was locked in as fourth best at Kentucky, starting and finishing in that position. Looked racy at times but never was able to break through to lead. Maintains slim title hopes.
	5 (5)	Will Power	7	Finished only ninth at Kentucky, but led laps and produced his most convincing performance on a 1.5-mile oval to date. Doing everything asked of him by Team Penske in a part-time role.
	6 (9)	Graham Rahal	6	Drove a canny, unobtrusive race at Kentucky to claim career-best finish on a 1.5-mile speedway, fifth. Continues to show great poise, and learns and improves every time out.
	7 (10)	Tony Kanaan	7	Finally, a top-5 finish for Kanaan for the first time since Indianapolis. He said third place felt like a win after the season he and Andretti Green Racing have endured. Attitude remains positive for final third of the season.
	8 (8)	Danica Patrick	9	Still hanging in the top five of the championship standings, but eclipsed this week by AGR teammate Tony Kanaan. Stayed out of trouble as usual and maintained excellent finishing record by coming home eighth.
	9 (6)	Marco Andretti	9	Fell back late and generally was more competitive than his 10th-place finish at Kentucky would indicate. Ranks a solid sixth in the championship despite rarely running at the front this year.
	10 (7)	Justin Wilson	4	Suffered a DNF at Kentucky but came away happy with Dale Coyne Racing's progress on 1.5-mile tracks. Looking to maximize point haul from upcoming road races at Mid-Ohio and Infineon.