Players would dress in flannel shirts, old trousers, sweaters or leather jackets, rubber-soled shoes, and often, hats. Hoover is more widely regarded for his achievements as a mining engineer, humanitarian and statesman than as a sports pioneer. However, he was a fan of both football and baseball, and enjoyed fishing and hiking. The ball is served from the back line. The serve is rotated among one team until the game is won.
Teams alternate serving after each game.
The ball must be caught on the fly and immediately returned from the point it was caught. There is no running with the ball or passing to teammates. Each team's court is divided in half. A ball returned from the front half of your court must be returned to the back half of your opponent's court. If the ball doesn't reach the back court, the opponent is awarded the point.