Red ball challenge for adults with a round robin format, changing courts and partners throughout.  Doubles play but will accommodate singles if numbers are odd.  Open to public of all skill levels, ages 18 and up.  Simplified scoring with winners being first to 15 points.  Regular racquets and regular nets will be used.  Service boxes with singles lines will be the "out" sidelines.  Serves will be underhand, and anything goes after the serve.  Partners can set up anywhere they like in doubles.  Prizes will be awarded.