About UsWanna Race? Sadler's Indoor Racing has been serving the Kansas City area since 2002. We are well known for our corporate events and youth birthday parties. Sadler's offers three ultimate race courses for you to test your skills: The Oval, Road Race and Grand Prix. Come in and try your skills, race your friends and see who gets the bragging rights as you compare your times! Sadler's is a family friendly environment so bring the whole family. Children must measure 54" in height to race.