In this study, I compare how men, as football players and men, as fraternity members, manage self-impressions, negotiate gender boundaries, and maintain parallel hierarchies of masculinity on a college campus. Using social identity theory and symbolic interactionist concepts of self-presentation and in-groups and out-groups, I explore the foundations of identity formation and how the men in each group maintain distinct imperatives of hegemonic masculinity. Findings, based on in-depth interviews, reveal that these men exist in separate spheres and share a mutual respect for one another, and that their positive in-group identities strengthen their boundaries. These boundaries also help preserve their status as men, not only over other men, but over women as well. I offer suggestions for future research and discuss implications for how these subgroups of men can be better integrated into the college culture.