"NASCAR realignment" refers to changes in the schedule of the NASCAR Sprint Cup Series. In a January 2003 press conference, NASCAR's chairman of the board, Bill France, Jr., caused a stir when he interrupted the conference to announce big changes for 2004. France said that many tracks were under fire and being looked at as having race dates taken from them, and given to other facilities. Among the scenarios being looked at by France were how tracks did with ticket sales, and how the weather affected those races. Two tracks immediately looked at by the media were the North Carolina Speedway and Darlington Raceway. Both tracks' events almost never sold out, and the weather, especially at the North Carolina Speedway, had been a major problem, as rain forced many races to be postponed until the next day, typically Monday, which caused attendance to be even worse.
"Realignment 2004" was announced in June 2003 at the Winston Cup race weekend at the Michigan International Speedway. While there were only a few changes, they were major. In June 1997, Auto Club Speedway began hosting a Winston Cup race. The track is located in Fontana, California, just outside Los Angeles, and so many fans flocked to the first race, and very quickly, the Los Angeles area became NASCAR's largest market. So, it was announced that Darlington's Mountain Dew Southern 500, held on Labor Day weekend for 54 years, would be moved to November for 2004, alienating the fan base of long time NASCAR fans. In the process, Rockingham's November date, the Pop Secret Microwave Popcorn 400, would move to Fontana, become the Pop Secret 500, and be run from the late evening into the night on the West Coast on the day before Labor Day, while also being shown live on NBC in primetime. The move of the race to September left Rockingham with just one race to run in 2004—its February date, the Subway 400.