A poker tournament is a tournament where players compete by playing poker. It can feature as few as two players playing on a single table, and as many as tens of thousands of players playing on thousands of tables. The winner of the tournament is usually the person who wins every poker chip in the game and the others are awarded places based on the time of their elimination. To facilitate this, in most tournaments, blinds rise over the duration of the tournament. Unlike in a ring game, a player's chips in a tournament cannot be cashed out for money and serve only to determine the player's placing.

Cash games, also sometimes referred to as ring games or live action games, are poker games played with "real" chips and money at stake, often with no predetermined end time, with players able to enter and leave as they see fit. In contrast, a poker tournament is played with tournament chips worth nothing outside the tournament, with a definite end condition, and a specific roster of competitors.