Her courses cover religion in America from the colonial to the contemporary period. In particular, Blazer's courses investigate the relationship between religion and popular culture, paying attention to race, class, gender, and sexuality. Her first book, Playing for God: Evangelical Women and the Unintended Consequences of Sports Ministry (NYU Press, 2015), is an ethnographic exploration of the religious experiences of contemporary Christian athletes in the United States. Blazer serves as cochair of the Religion, Sport, and Play Group for the American Academy of Religion and has also published scholarship on sports media, foodways, and teaching and learning in religious studies.