2009 NASCAR Sprint Cup Series

The 2009 NASCAR Sprint Cup Series was the 61st season of professional in the United States, the 38th modern-era Cup series, and the last Cup season of the 21st century's first decade, the 2000s. The season included 36 races and two exhibition races with the regular season beginning with the Daytona 500 at Daytona International Speedway and ending with the Ford 400 at Homestead-Miami Speedway. The final ten races were known as 2009 Chase for the Sprint Cup. Rick Hendrick won the Owners' Championship, while Jimmie Johnson won the Drivers' Championship with a fifth finish at the final race of the season. Chevrolet won the Manufacturers' Championship with 248 points.

Because of the merger of Dale Earnhardt, Inc. with Chip Ganassi Racing, the No. 01 and No. 15 teams closed after the 2008 season. However, the owners' points from the No. 15 were transferred to the No. 34, while points from either the No. 01 or No. 41 was transferred to the No. 07, with the No. 33 car, owned by Richard Childress, receiving the other. (NASCAR allows for a transfer if the original owner maintains some stake in the team to which points are transferred.) 2009 also saw the demise of Petty Enterprises, which merged with Gillette Evernham Motorsports. The new company would be called Richard Petty Motorsports, forming a 4 car team with Kasey Kahne in the No. 9, Elliott Sadler in the No. 19, Reed Sorenson driving the famed No. 43, and A. J. Allmendinger driving the No. 44. Also Bill Davis Racing was bought by Triad Racing, however the No. 22 was bought by Penske Racing with Bill Davis holding minority interest. The No. 22's points were transferred to the No. 77, thus guaranteeing that car a spot in the Daytona 500 should all other transfers occur. There were 41 full-time teams in 2009.

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