League: These are also called Round Robin Tournament. In league system all the teams are treated at par in league tournament.
There are two types of league tournaments:
(a) Single league tournament
(b) Double league tournament
(a) Single league tournament: In this type of tournament, every team shall play once with every other teams. The total number of matches in a single league tournament shall be n(n-1)/2.
For example, if 10 teams are competing, the total number of matches to be played shall be n(n-1)/2 = 10(10-1)/2 = 10(9)/2 = 45 matches
(b) Double league tournament: In this type of tournament, every team shall play twice with every other team. The total number of matches shall be n (n - 1), r.g., 10 teams are competing the total number of matches: n (n - 1) = 10 (10 - 1) = 10 (9) = 90 matches.
