During the race on Friday 6 October 2006, Porter clipped a wall, causing him to lose control of his car in a curve, coming to a stop sideways on the track, with his driver's side facing the oncoming cars. A number of cars evaded Porter's stalled vehicle before Chris Alajajian's car connected with the tail of Porter's. Driver David Clark approached the scene at then slid his own car sideways, with his front right side crumpling the driver's side of Porter's passenger compartment. Both Porter and Clark were unconscious and critically injured when the safety marshals arrived. The race was cancelled and all other racing events were suspended for two hours.