Eight fans were injured by debris when Carl Edwards' car went airborne into the safety fence on the final lap at Talladega Superspeedway on Sunday.
Track medical director Bobby Lewis said none of the injuries was life-threatening but two women were airlifted to Birmingham hospitals. He said one likely had a broken jaw and the other was not injured but was taken because of a medical condition.
Lewis said they were airlifted because of traffic, not the severity of the injuries.
Edwards was trying to block a move from winner Brad Keselowski, and contact sent his spinning car over Ryan Newman's hood and into the fence on the frontstretch.
The fence held and Edwards' car landed back on the track.