DAYTONA BEACH, Fla. – Less than a month after Denny Hamlin celebrated his Daytona 500 crown in the sport’s most famous victory lane, Daytona International Speedway has announced major adjustments to the traditional 2021 NASCAR Cup Series season-opening race week – changing up the course of the popular Busch Clash race and condensing the schedule of Daytona Speedweeks.