"College undermatching" occurs when high-achieving students from low-income backgrounds apply to or enroll in less selective postsecondary institutions despite meeting the academic criteria. Students of color tend to "college undermatch" due to lack of college preparation materials and resources, socioeconomic status, and meaningful engagement with school counselors. Although the phenomenon of "college undermatching" is not new, the term is unfamiliar to some college admission counseling professionals. College admission counseling training is rarely a requirement in school counseling graduate programs. Because of this, a mixed-methods study was created to expand pre-service counselors' "college undermatching" and college counseling knowledge. Four pre-service counselors from two mid-Atlantic universities participated in the virtual professional learning community. The College Counseling Knowledge Instrument, Session Feedback Survey, Professional Learning Experience Survey, and semi-structured focus group were used to collect data about pre-service counselors' "college undermatching" and college counseling knowledge as well as their experiences in a virtual professional learning community. Although the sample size was small, the mixed-methods study provided pre-service counselors with new information to add to their "college undermatching" and college counseling knowledge. In addition, the participants engaged with and learned from each other. Even though the results of the intervention may not be generalizable to all pre-service counselors, the results indicate that pre-service counselors can benefit from college admission counseling training. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]