sentences:  In the first race, Bobby Unser won the pole, followed by Al Unser, Gordon Johncock, Wally Dallenbach, Sr., and Rick Mears.Johncock jumped out to lead the first three laps, but Bobby Unser fought back and led until the first caution flew on lap 11 for Spike Gehlhausen's stalled car.Lee Kunzman stayed out under the caution and took the lead, while Bobby Unser's engine blew on lap 21.