Every player participating in a tournament should review the official Rules of Racquetball. Go to the USRA website for more information.
The USRA is committed to keeping the rules of racquetball updated to best suit the sport. Make sure to check the rules every year so you are up to date.
Having qualified referees is essential to running a great tournament. The USRA supplies all the information required for someone to learn and understand the rules for racquetball. Here are some additional resources for learning how to be a better referee.