Question:    How long do I have to play to be sure of achieving a game's rated payback?

Answer:    There are no criteria to ascertain any game’s rated payback in an online poker game. Although the number of plays within a given range can be calculated, but that too requires a lot of additional informations like: What poker game is being played? What is the player's accuracy (i.e., what is the expected payback, as it is being played)? Just how close to the rated payback you want assurance of being? What probability of being outside those limits are you willing to tolerate? All these questions have to be answered because once you start playing poker, you will never be exactly on target with your achieved payback. Even in a video poker game, before you drop that first coin, you have zero return on zero play, but that will be the last time that your results will precisely match the projection.