A Single Elimination Tournament Bracket is for events where if the team loses one game, they are out of the event. Single elimination tournament is best type when you have a large number of teams and a short time frame. When a team wins they continue, and when they lose they’re out .
A Double Elimination tournament is the best type of tournament to run if you have a long enough to complete all of the games – there are more games involved in Double elimination versus single elimination tournaments. This type of tournament is usually more fun as one loss and you are still in the tournament.
You can print a free tournament bracket from http://www.erasabletournamentbrackets.com they have single or double elimination brackets, seeded or blind draw and round robin brackets.
ErasableTournamentBrackets also has reusable brackets for purchase – from wall decal styles to permanent boards.