Title IX is widely credited with shaping new norms for the world of sports by requiring educational institutions to provide equal athletic opportunities to women. The statute and regulations send a message that women are entitled to participate in sports on terms equal to men. For several decades, this message of equality produced dramatic results in participation rates, as the number of women interested in athletics grew substantially. Despite these gains, however, many women and girls, especially those of color and lower socio-economic status, still do not participate in sports, or remain interested in participating, in numbers comparable to their male counterparts. Indeed, in recent years the gains in participation rates brought about by...