In NASCAR, a road course ringer, also known as road course specialist, road course expert, or a road runner, is a non-NASCAR driver who is hired by a NASCAR Cup Series or NASCAR Xfinity Series team to race specifically on road courses. NASCAR describes road course ringers as "drivers who specialize in turning both left and right," and says that "perhaps the greatest road-course ringer in NASCAR history might be Dan Gurney" after he won four straight NASCAR races at Riverside. He lapped the field at the 1964 event.