The 1989 NASCAR Winston Cup Series was the 41st season of professional stock car racing in the United States and the 18th modern-era Cup season. It began February 12 and ended November 19. Rusty Wallace of Blue Max Racing won the championship. This was the first year that every Winston Cup race had flag to flag coverage, with almost all of them being televised live. The 1989 season marked the end of the first of two tire wars between Goodyear and Hoosier, with Hoosier leaving NASCAR shortly after Goodyear debuted their new radial tires.