This study examines shifting race relations within one of South Africa’s most popular and fastest growing sports—women’s netball. Drawing on political opportunity and collective identity theories as articulated by social movement scholars, this article develops an analytical strategy to elucidate how athletes and sport administrators can serve as agents of social change. This analysis relies on interview, survey, and archival data collected during 1999 and 2000. The findings show that netball athletes and administrators are contributing to nation building in post-apartheid South Africa by constructing new collective identities across historical racial boundaries.