Mark Martin

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Mark Martin

Power 100 rank: 41
Sport: Nascar driver
Age: 51
Most recent notable achievement: 2nd place overall in 2009 Sprint Cup Series
Earnings: $7.3 million
Key sponsors: GoDaddy.com, Kellogg's

Why he's on the list: Martin has been a top Nascar driver since Jimmie Johnson was in diapers. Yet he has maintained an edgy image and as a result can reasonably partner with just about any company.