The present research explores free will belief as a causal antecedent to self-handicapping. The overarching goal of this work is to increase our understanding of why some individuals faced with a threatening assessment in an important ability domain will increase effort to ensure success, whereas others will engage in self-handicapping. Previous work has established that uncertainty aroused by non-contingent success feedback encourages the use of self-handicapping. We theorize that when faced with uncertainty and potential failure, those with weaker free will beliefs will be more likely to resort to self-handicapping. In other words, that self-handicapping necessitates that an individual feels a lack of free will and control over future performance and outcomes. Thus, we predicted that stronger belief in free will would be negatively associated with self-handicapping. Study 1 (N = 137) used a correlational design and measured trait self-handicapping, belief in free will, and perceptions of control, among other relevant dispositional variables, in an MTurk sample. The results indicated that belief in free will was negatively correlated with trait self-handicapping. Study 2 (N = 132) replicated this same pattern using a correlational design with a college student sample. Study 3 (N = 98) used an experimental design and manipulated belief in free will using an autobiographical memory task in which participants were asked to recall a time in which they experienced control and freedom of choice, or a lack thereof. We predicted that experimentally inducing a weaker free will belief would increase claimed self-handicapping. Results showed that the memory task did not produce differences in belief in free will, making us unable to test our causal hypothesis. However, we did replicate the correlations found in Studies 1 and 2. The free will manipulation and the implications of the correlational data are discussed.