This exciting day of open-wheel competition features all stars of the Indy 500, including Helio Castroneves, Marco Andretti and Tony Kanaan. The weekend will also feature the World Challenge Series, Indy Lights., Pro Mazda Championship and USF2000 Championship.

(2) tickets for the GoPro Grand Prix of Sonoma IndyCar Series event, Saturday August 23, 2014.  Kids under 12 are free.