Rick Mears took the lead for the second time on lap 54. On lap 58, Patrick Bedard suffered a terrible crash in turn four. The car spun to the inside of the north shortchute, hit the inside wall, flipped over, and barrel-rolled through the grass. The car broke into two pieces, the tub and the engine. Debris littered the track, and a lengthy caution was needed to clean up the incident. Bedard was injured, but the injuries were not life-threatening. Under the caution, Danny Sullivan came up too fast and ran into the car of Roberto Guerrero, hopping up on two wheels, and damaging his right-front suspension. Sullivan dropped out of the race, but Guerrero was able to continue.