US Patent 9251666 Adjusting payback data based on skill

A gaming device including an interface unit configured to accept game play data from a player and a controller coupled to the interface unit. The controller includes a processor and a memory, wherein the memory stores payback data. The processor is configured to receive, via the interface unit, the game play data for the player playing a game, evaluate the received game play data based on predefined criteria, determine a level of skill of the player based at least on the evaluated game play data, and adjust the payback data based on the determined level of skill of the player.