In 1996, the CART series held a rival 500-mile race, the U.S. 500, the same day as the Indy 500. The race was discontinued after only one running. However, the moniker "U.S. 500" was kept, and for a period of time used for the traditional July 500-mile race. The name "Marlboro 500" subsequently was switched to the new 500-mile race at Fontana.