In the end it was Douglass who dethroned the defending champ and scored the title .
Charley Douglass and Bruce Croneberger needed a winner - take - all semifinal race in Las Vegas to determine the class champion .
In the end it was Charley Douglass who dethroned the defending champ and scored the title .
Charley Douglass and Bruce Croneberger needed a winner - take - all semifinal race in Las Vegas to determine the class champion .