Johan Huizinga’s Homo Ludens: A Study of the Play-Element in Civilization has been recognized as a classic study of play. However, its implications for the study of sport have not been developed to their fullest extent. This paper reconsiders Huizinga’s model as an ideal type. It is argued that such a model unifies some work currently being done on sport and otherwise provides the basis for a far-reaching research agenda. In this spirit, a number of empirical questions stemming from Huizinga’s work are considered. This is followed by two tables that extend and systematize the model discussed above.