This paper investigates the use of the case-based reasoning methodology applied to the game of Texas hold’em. The development of a CASe-based Poker playER (CASPER) is discussed. CASPER uses knowledge of previous poker scenarios to inform a betting decision. CASPER improves upon previous case-based reasoning approaches to poker and is able to play evenly against the University of Alberta’s Pokibots and Simbots and profitably against other competition.