The first purpose of this article is to contribute to the field of mentoring by investigating whether and how university-based mentor education challenges mentors’ beliefs about mentoring. The second purpose is to explore judge mentoring as a quantitative construct, and to test whether self-efficacy related to their mentor role, role clarity, mentor experience and formal mentor education have influence on beliefs consistent with judge mentoring. The findings indicate that mentor education contributes to lower levels of beliefs consistent with judge mentoring and strengthens mentors’ awareness of their role as a mentor. Higher levels of self-efficacy related to the mentor role were associated with stronger beliefs consistent with judge mentoring.