April 5, 2013 to April 7, 2013 – Sonoma Raceway, Sonoma, CA CSRG 46th Season Opener Organized by CSRG | Type: csrg, 46th, season, opener
May 16, 2013 to May 19, 2013 – Sonoma Raceway, Sonoma, CA GRL Sonoma Historic Motorsport Festival Organized by Sonoma Raceway | Type: grl, sonoma, historic, motorsport, festival
August 3, 2013 to August 4, 2013 – Sonoma Raceway, Sonoma, CA SVRA WEST Summer Races Organized by SVRA | Type: svra, west, summer, races
August 25, 2013 all day – Sonoma Raceway, Sonoma, CA IZOD IndyCar Grand Prix of Sonoma Organized by Sonoma | Type: izod, indycar, grand, prix, of, sonoma
October 4, 2013 to October 6, 2013 – Sonoma Raceway, Sonoma, CA CSRG 10th Annual Charity Challenge Organized by CSRG | Type: csrg, 10th, annual, charity, challenge
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