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1984 to 1990, Skateboarder Quiksilver

1990 to 1999 Snowboarder, Santa Cruz, Quiksilver, Oakley, Snowboard Shop

As a professional snowboarder riding for Santa Cruz Kearns was cited in Thrasher Magazine, and had a snowboard named after him called the Santa Cruz Sean Kearns Respect Snowboard.In 2004, Kearns founded Infamous Management Inc, a management agency representing professionals in the skateboarding, snowboarding, and surfing industry.Kearns sold Infamous Management Inc to his partner Roberta Rogers in 2007.