San Diego The first-ever NASCAR San Diego Weekend will be held in June 2026 at Naval Base Coronado, celebrating the 250th anniversary of the U.S. Navy. NASCAR San Diego will be three days of races headlined by the stars of the NASCAR Cup Series, along with the NASCAR Xfinity Series and NASCAR CRAFTSMAN Truck Series. In addition to being San Diego’s first NASCAR event, it will also be the first race to take place on a military base.