To provide an information processing system for improving pleasure in competing for scores which is essential in a bowling game.

The information processing system includes: a means for setting the number of competing teams in each round, using game-progress data D1 corresponding to the number of participants registered based on data D3 on the number of the competing teams constituting the game-progress data D1; and a means for making team-formation information from team-formation data D4 constituting the game-progress data D1. Thus, a game plan including team competition according to the number of the participants can be obtained.