Systems and methods are provided for an inter-sport fantasy sports challenge. According to one aspect, a set of players is provided to each user, where each player competes in one of a plurality of sports. A roster selected from the set of players is received from each user. Rosters include players selected without regard to a respective sport and a respective position, and can include players from multiple sports. In another aspect, rosters include prescribed numbers of players and positions, and the respective rosters as between at least two users include players from multiple sports. Performance data for each player is received. A player point value for each player is calculated and converted into normalized values using one or more piecewise-defined non-linear functions for each sport. A roster score is calculated by aggregating normalized values for each player on the roster, and users are ranked based on roster scores.