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RTP

The long-run expected payout ratio under specified rules and assumptions, not a guarantee for a session.

Concept and usage

The long-run expected payout ratio under specified rules and assumptions, not a guarantee for a session.[1][2]

In context

RTP is a shorthand for a theoretical return proportion under specified rules and repeated-play assumptions. Regulatory material distinguishes the designed value from observed results, the game version and the size of the sample.[1][2]

Common confusion

RTP is not a personal refund promise, a single-round win probability or a forecast of the next outcome. It is not a sound comparison between different games unless rules, wager definitions and calculation methods are aligned.[1][2]

Example

A game displaying 96% theoretical RTP does not mean that someone who stakes 100 will receive 96 back in one session. Short-run outcomes can diverge from a long-run model, and disclosure requirements differ by regulator. Record game release, measurement period and sample source when comparing values.[1][2]

Keep exploring

FoundationUnderstanding RTP: expectation is not a promiseReturn to player describes long-run expected payouts relative to wagers under a specified game model. It is not a promised refund for a round or the amount an individual will receive over a short session.Deeper analysisProbability, payouts and experience: three languagesProbability describes how likely an event is, a paytable defines its payout and experience reflects a finite sequence of outcomes. These are related but not interchangeable. A large payout does not imply a likely outcome.Related contextGame software context: rules are part of the productA rule page connects visual play to its mathematical model. Outcome sets, paytables, ties and version differences all need explanation. Recognizing a game name is not enough to understand a variant.

Glossary

Compare perspectivesHouse EdgeRelated contextVolatilityRelated contextPaytable

Sources and scope

  1. Return to player: how much gaming machines payoutUK Gambling CommissionChecked:

    Explains RTP as a long-run average and distinguishes random from compensated machines.

  2. How to calculate return to player (RTP)UK Gambling CommissionChecked:

    Provides regulatory context for observed and theoretical RTP, volatility and sample size.