The present study evaluated the efficacy of a sexual assault risk-reduction program that included a physical self-defense component for college women ("N"=500). Program group women significantly increased their protective behaviors over the 6-month follow-up period compared to the waiting-list control group. However, there were no significant differences between the two groups regarding rates of sexual victimization, assertive communication, or feelings of self-efficacy over the follow-up periods. Program group women who were victimized during the 3-month follow-up period evidenced less self-blame and greater offender blame for their assaults than control group women who were victimized following the program. Given that program women evidenced a greater awareness of sexual assault at the end of the study than control group women, the difficulty in addressing the impact of programming on rates of sexual victimization is discussed.