The primary objective of this study is to identify the personal characteristics that predict dropout versus continuation among dual career athletes from different sports who attend sports schools. These schools provide an optimal environment for combining an academic education with a sports career.At the end of the school year, all 10th graders (52 girls, 73 boys) from five out of six sports schools in Saxony, Germany, completed a standardised questionnaire that measured personal characteristics deemed important for a successful career – personality traits (Freiburger Persönlichkeitsinventar – FPI), goal orientation (Sport Orientation Questionnaire – SOQ), and volitional skills (Volitional Components in Sport – VKS). In addition, demographic and sport-related data were collected. One year later, at the end of 11th grade, all participants again completed the questionnaire.At Time 2, 37 athletes (29.6%) had dropped out of their sport career, and 88 athletes were still pursuing their sport career. A majority of the dropouts were from individual sports (n = 31) and were females (n = 23). A logistic regression analysis of physical complaints (higher for dropouts), win motivation and self-optimisation (each lower for dropouts) as significant covariates correctly classified 65% of the dropouts and 92% of the non-dropouts.Personal characteristics, motivation and volition in particular, played important roles for those adolescent athletes who remained active in their sport. Accordingly, it is suggested that young athletes receive psychological training focused on these specific personal characteristics.