The educational psychology literature has recently discussed the implications of university citizenship behavior activities that go beyond the primary student role - and counterproductive academic behavior - behaviors that run counter to academic values and objectives. This study investigated whether supervisor ratings of students' academic potential can serve as a valuable predictor of those criteria. The sample included 115 international students enrolled in a master's degree program at a university in the Netherlands. Results revealed that supervisor ratings of students' academic potential provided incremental validity above and beyond undergraduate grade point average (U-GPA) in predicting self-ratings of university citizenship and counterproductive academic behavior. The usefulness of supervisor ratings as supplement to traditional predictors of study success, and implications for student selection are discussed. (C) 2014 Elsevier Inc. All rights reserved.