Prior research has looked at the effects of low self-control, unstructured socializing, and risky behaviors on victimization. In previous studies, however, the differences between routine activity and lifestyle theory have been overlooked. The aim of this study is to test the unique characteristics of both theories independently. Specifically, this study addresses: (1) the mediating effects of unstructured socializing on low self-control and victimization and (2) the mediating effects of risky behaviors on low self-control and victimization. Data were collected using a self-administered survey of undergraduate students enrolled in introductory criminal justice and criminology classes (N = 554). Negative binomial regression models show risky behaviors mediate much of the effect low self-control has on victimization. Unstructured socializing, in contrast, does not mediate the impact of low self-control on victimization.