The Gold Country Grand Prix was founded in 2006, with the purpose of encouraging running and racing in western Nevada County. Enter one race in the Grand Prix series and you are automatically in the Grand Prix for that year. In order to win a Grand Prix award you must complete a minimum of 5 GP races during the calendar year. Grand Prix Age Groups: 1-10, 11-14, 15-18, 19-29, 30-39, 40-49, 50-59, 60-69, 70-79, 80-99