Although sexual victimization during adolescence increases risk for later revictimization, mechanisms for increased risk among new college students have not been identified. Female undergraduates (N = 87) were assessed at the start and end of their first academic year. Those who reported initial sexual victimization at Time 1 were more likely than other women to report later college victimization at Time 2. Path analyses showed that self-blame and decreased sexual refusal assertiveness (SRA) explained this effect. Specifically, initial victimization was associated with increased self-blame; in turn, self-blame indirectly predicted later college victimization via decreased sexual refusal assertiveness. Prevention efforts focused on self-blame and other barriers to SRA may reduce risk for revictimization during women's transition to college. (Contains 2 tables and 1 figure.)