Roundnet is a team sport played by two teams consisting of two players each. Opposing team members line up across from each other with the Spikeball roundnet set in the center. A point begins when the server hits the ball off the net towards the opposing player. After the service, there are no sides or boundaries. The object of the game is to hit the ball off the net in such a way that the opposing team cannot successfully return it.

A team is allowed up to three touches to return the ball onto the net. Once the ball is played off the net, possession switches to the opposing team. the rally continues until a team is unable to legally return the ball. Players may move as they wish during a point, so long as they don't physically impede the opponent's play on the ball.

- Overview provided by Spikeball Roundnet Association