Using survey data on the third cohort of scholarship recipients in the Washington State Achievers (WSA) program, this study first examined how the assignment of college mentor and student engagement in mentoring vary based on student and institutional characteristics and then examined the relationship between mentor assignment and different mentoring aspects of the WSA program and student persistence in college. The results from this project indicated that Asian American students were more likely to have an assigned college mentor and that Hispanic students were more likely than White students to turn to their college mentors for support and encouragement and had a higher level of perceived importance of their overall experiences with mentors. Among all WSA recipients, having an assigned college mentor was positively related to the probability of persisting in college; among those who had an assigned college mentor, the probability of persisting was positively associated with the extent to which the recipients turn to mentors for support and encouragement and with their perceived importance of experiences with mentors.