Ten to thirty players may play at one time on playground or gymnasium. Equipment consists of volley ball and tennis net.
For large teams this game is best played on a ground measuring fifty feet in length and twenty-five in width. A tennis net or a net two feet wide is stretched across the center of the ground from side to side, extending one or two feet beyond the boundary on either side. The upper edge should be from six feet and one-half to seven feet and one-half above the ground. The players are evenly divided into two teams. They scatter over their respective courts without special arrangement. A captain is chosen for each side. An umpire is desirable.
Each team tries to keep the ball in lively play toward its opponents' court, as each team scores only on its opponents' failures to return the ball or keep it in the air.
The ball is put in play by being served by a selected member of either team, who should stand at the rear of his court with one foot on the rear boundary line behind the line. From this position the ball is tossed upward lightly from one hand and batted with the open palm of the other hand over the net and into the opponents' court. The server has two trials. A served ball may be assisted on its course by any other player on the server's side using one or both hands (open palm), no player so assisting the ball on the serve may strike it more than twice in succession, and the server under such circumstances may not strike it more than once.
Should the ball then fail to land on the opponents' court, the server loses his second serve. In serving, the ball must be batted at least ten feet by the server before being touched by any other player on his side. If a return ball hits a player on the server's side and bounces into the opponents' court, it is considered no play. The players on a side take turns in serving. A ball which bounds back into the court after striking any other object except the floor or ceiling is still in play.
In sending the ball across the net, players should aim for an unprotected part of the opponents' court or try in other ways to place them at a disadvantage. The service changes to opposite side when the serving side:
1. Allows the ball to touch the floor.
2. Knocks it out of bounds.
3. Fails to return it to the opponents.
4. The ball hits the net during the service.