Tournament :
It is series of competition between different teams. It helps to decide the positions like first, second, third etc. For a tournament to take place there should be minimum two teams. Various Types of Tournaments : Tourna-ments are of different types like Knock-out, League, and League cum knockout, challenge etc.
Knock-out Tournament :
In a knock-out tournament if a team loses a single match it will be out of the tournament. Only the winners move to the next round of matches. Formulae to find the number of matches in a knock-out tournament = n – 1 where n = number teams participating in the tournament. The number of matches in a knock-out tournament of 17 teams =17-1 = 16 matches.
League Tournament: In a league tournament every team participating in the tournament has to compete with every other team. Winners are decided on the basis of the points acquired after all the competition. For each win a team may be awarded 2 point, draw 1 point and for a loss no point is awarded. Formulae to find the number of matches in a league tournament = n (n – l)/2. Where n = number teams participating in the tournament. The number of matches in a league tournament of 9 teams = 9 (9 – 1) /2 = 36 matches.
League cum Knock-out Tournament : In a league cum knock-out tournament competition is conducted in two phase. In the first phase competition is conducted in the form of a league and through this competition a pre-decided number of teams are selected on the basis of points secured from the top. In the second phase pre-decided number of teams selected from the league matches will participate in a knock-out tournament and from this first and second teams are decided.
Fixture of 11 teams on the knock-out basis:
Number of Byes in Lower Half
= nb+1/2 = 5+1/2 = 3
Number of Byes in Upper Half
= nb-1/2 = 5-1/2 = 2

Number of Bye = 16 – 11 = 5 Bye