A Double Elimination Tournament is where players are eliminated each round after playing at least twice in one or each round. Players have to be beaten twice in order to be eliminated. In the event that the opponents are tied after the first or each round, then another game will be played and serve as a tiebreaker to determine a winner of that round. This will be a completely new game. So there is a possibility that you may have played three different games in the first round. It consists of a number of players that can be divided by 4, equally into even numbers. Think of a tournament with 64 or 32 or even 16 players that has multiple rounds. The number of players participating has to be divided by 4 for an equal number of even players in each round.
A good example of this bracket is UEFA Champions League Fútbol where in the knockout rounds you have a 2 –Leg Round and usually have to be beaten twice in order to be eliminated. Double elimination can just be the first round or every round except the championship round. This should be determined before the tournament begins.
A double elimination tournament is designed for a small number of players. Anything under 20 participants. Brackets can be chosen by the players drawing numbers to determine their place in the brackets or if this a regional tournament where the players are determined by winners of local tournaments and a point system that would place the participants in certain spots within the brackets.
