Driver A.J. McCoy's Jeep crashed during a mud-pit race and killed a spectator in North Carolina.
Briton Jeremy McWilliams will start from the pole in Sunday's MotoGP race at Australia.
Brazilian rider Alex Barros claimed the provisional pole for Sunday's MotoGP race at Australia.
Injured MotoGP rider Garry McCoy is expected to be back in action at the British Grand Prix.