Soap Box Derby is a coasting race for small motorless racing cars. The derby received its name because at one time many of the cars were built from wooden soap boxes. Beginners from 9 to 16 race in the Stock division. More advanced racers from 9 to 16 compete in the Kit Car division. The most advanced boys and girls from 11 to 16 compete in the Masters division. The contestants must build their own cars. Rules govern the size, weight, and cost of the racer. Contestants first compete in local races. Winners qualify for the All-American Soap Box Derby held every August in Akron, Ohio. Racers from the United States, Canada, and other countries enter the derby each year. The first race was held in 1934 in Dayton, Ohio. It was moved to Akron in 1935.