The question of how to modify athletics programs according to Title IX specifications can be resolved by examping the basic reasons why play and sport are necessary. These reasons range from relaxation and catharsis to learning and competence seeking. Specific programs, then, should be tailored to fulfilling this braod range of needs, and organized in a logical progression that provides variety and mastery. Co-recreational activities are not new, and there are many sports which can be easily performed by both girls and boys, a lways taking into consideration interests and physical capacities. Intramurals administrators who involve students in decisions about co-ed athletics will be able to devise programs that are both acceptable in legal terms and satisfactory to students. (A bibliography and outline of sports modified for co-ed purposes are included.) (CD)