The article seeks to explain how students from middle-class to upper-middle-class communities continue to pull ahead of students from other backgrounds. A mixed-method ethnographic study that followed a diverse group of high- and underachieving students through their entire high school careers. The article describes the practices that were oriented toward producing competitive academic success, including: 1) the class cultural community achievement ideology; (2) the school’s institutional advantaging of its pupils; (3) student identities and strategies for school success; and (4) parental intervention in school and manipulation of educational policies.