While not even remotely on the same scale, Bowman-Gray Stadium in Winston-Salem, NC was a large high school football stadium during the week and a quarter mile racetrack on the weekends. How they kept the football field in a condition for games always amazed me, they sometimes held demolition derbies on it. City high schools have since gone on to newer, dedicated stadiums. You may recall the facility from the “Madhouse” series on the History Channel.