Claim: In September of 1997, the oval 250 lap Marlboro 500 race never took place as the previous year was the last round of the CART season.
Evidence: United_States Marlboro 500 For many years in the late 1990s and early 2000s, the race served as the season finale for the CART series. 250 The 1997 CART PPG World Series season, the nineteenth in the CART era of U.S. open-wheel racing, consisted of 17 races, beginning in Homestead, Florida on March 2 and concluding in Fontana, California on September 28. 200 (1970–1980, 2002–2005)
250 (1997–2003, 2012–2015)