Poker Tournament
A poker tournament is a structured event where every entrant pays the same buy-in for an equal stack of chips and plays until one person holds them all, with cash prizes paid to the top finishers.
Definition
A poker tournament is a scheduled poker event in which all entrants pay a fixed buy-in and receive an identical starting stack of tournament chips that have value only inside the event, not as withdrawable cash. The forced bets known as blinds (and often antes) rise on a timed schedule, steadily increasing the cost of playing a hand so that stacks are won and lost and players are progressively eliminated until one competitor holds every chip. The buy-ins are pooled into a prize fund that is divided among a set percentage of the highest finishers according to a published payout structure, while the operator's revenue comes from a separate entry fee rather than a built-in house edge, because poker is played competitor-versus-competitor. This makes tournaments distinct from cash (ring) games, where chips always equal cash and a player can sit down or cash out at any moment.
Worked example
An online multi-table tournament is advertised as "$100 + $9 No-Limit Hold'em, $100,000 guaranteed." Each entrant pays $109 in total: $100 goes to the prize pool and $9 is the operator's entry fee. If 1,200 players enter, the prize pool is 1,200 x $100 = $120,000 (above the guarantee, so no shortfall), and the operator collects 1,200 x $9 = $10,800 in fees. Every player starts with, say, 20,000 tournament chips and blinds begin at 100/200, rising every 15 minutes. A typical structure pays roughly the top 15% of the field (about 180 places here), with the winner taking around 18% of the pool (about $21,600) and the remaining paid spots receiving progressively smaller amounts down to roughly a min-cash of about $200. If instead only 900 players had entered, the pool would be $90,000 but the $100,000 guarantee still applies, so the operator must cover the $10,000 shortfall, known as overlay. Note that the large majority of entrants (here about 85%) win nothing and lose their buy-in.
Why it matters
For learners, the tournament format is the clearest illustration of how online poker differs from casino games: the operator does not play against you and takes no house edge, it charges an entry fee to host a contest between players, so a participant's expected result depends on the skill and luck of the field rather than a fixed mathematical margin. It also shows why poker is entertainment and not a reliable source of money — payout structures reward only a small fraction of the field, so most entrants lose their buy-in and long-run winners are rare and highly skilled. For professionals, tournaments are a core product and marketing tool: guarantees, buy-in tiers, fee percentages, and overlay risk directly shape liquidity, player acquisition, and profitability, and they must be operated within the licence, age (18+), and player-protection rules of each jurisdiction.
Related
Note: The core structure (fixed buy-in, equal starting stacks, rising blinds, prizes to top finishers, operator revenue from an entry fee rather than a house edge) is a stable definition. Specific figures — buy-in and fee splits, starting stacks, blind timing, the percentage of the field paid, and the top-prize share — are illustrative and vary widely by operator, event, and format (for example freezeout, rebuy, re-entry, bounty/knockout, satellite, and Sit & Go each behave differently). Overlay handling, entry-fee (rake) caps, and the legality and licensing of online poker all vary by jurisdiction and should be verified locally.