When a team has scored fifteen points or more and has a three point advantage over their opponents, the teams will change courts and the losers will serve to start the next set. In the first and second sets, service will be made from the right side of the court. In the third and fourth sets, service will be made from the left side of the court. And, this system will repeat itself if the game goes into O-kon. When teams are at zero and lose points, they are awarded minus points.
Set point is the serving team's advantage.
In Rocball either team can score but only the team with the serve can win a set. Because of rocball's scoring system, set point is unstable. There are different types of sets and different situations for set point. Therefore, set point will be called by the chief official when a team is serving with one less point needed to win a set or a team has the score to win but needs a serve point call for set point. Blow-Out is the name of a complete set that determines when teams should change court.