From concerned reader: if I am reading the question correctly, the answer of 10 games submitted is not accurate. However, let me clarify the question first. I believe that we are asking how many games must be played in total to determine one, and only one, winner of the entire tournament. Given that this is the correct interpretation of the question, the correct answer is that 19 games must be played to determine a singular winner of the tournament.
If you have 20 players in a tournament with single elimination, you will have to play 19 games...
There is no timing associated with a pool tournament. How long a pool game lasts depends upon the types of games being played and the skill of the players.
An elimination system type of tournament involves several rounds of play. Players will draw to see who they play against. Whoever wins from each round goes on to play a winner from another round. This continues until only one player is left.
In a professional tournament or high level amateur tournament, the starter will usually issue players with their cards and some course information, such as where the pins are cut. He will also give any rules of play such as if it is lift clean and place. They will also announce the players name and where they are from. In club tournaments they will simply determine the order of play and tell the players when they can hit.
The amount of players in a poker tournament varies from tournament to tournament. For example the poker games played in Vegas accommodate two to approximately sixteen people.
Assuming that a knock out is a single elimination tournament, where each player/team plays until they lose, there are 38 games. Only one team will not lose.
In any single elimination pool tournament with an odd number of players or teams, a by is always neecssary. This is one reason double elimination can be slightly more "fair", or points are used. Players or team are paired, 1 to 1, but with an odd number in any round, a player has no one to play. This player gets advanced to the next round as if he/she had a win, and this is called a "bye". The play should be arranged such that no player or team gets more than one bye.
The payout of the golf players in a given tournament usually depends with the tournament organizers. The U.S. Open payout for 2014 fir instance was $1.8 million .