After Ralph Samuelson was able to create water skiing he wanted to make a show to go with it. As a result Show Skiing was created, and Ralph was able to put on a show for his neighbors. Ralph's act wasn't as intricate as today's acts but it still was a show as he was pulled behind a plane on floats as he water skied. The original act that Ralph Samuelson performed is no longer used. Nowadays most clubs do human pyramids and freestyle jumping. There are clubs all across the world that perform ski shows. Also, there are competitions all over that are judged for best acts and best performances.
How they are judged.
They are judged on a variety of things such as how well the skiiers work together, how well they perform their routine, the difficulty of the routine, how well they setup, the people on the ground announcing, and overall show.