Four teams competed in a round robin competition, with the top team and the bottom three teams proceeding to their respective sections of the play-offs: the top team plays for advancement to Group II.

Four teams competed in a round robin competition, with the top two teams and the bottom two teams proceeding to their respective sections of the play-offs.

Four teams competed in a round robin competition, with each team proceeding to their respective sections of the play-offs: the top team played for advancement to Group I.

Four teams competed in a round-robin competition, with the top team and the bottom team proceeding to their respective sections of the play-offs: the top team played for advancement to Group I, while the bottom team faced potential relegation to Group III.