This study investigated likely determinants of achievement-related affect in physical education. In particular, interrelationships were examined between achievement goal orientations, success perceptions, personally controllable attributions, and achievement-related affect based on data collected from 1,070 British students aged 11-16 years. A positive association emerged between task orientation and success perception, but not between ego orientation and success perception. In addition, perceived success positively influenced personally controllable attributions and positive affect, but had no effect on negative emotion. Furthermore, personally controllable attributions augmented positive emotion and minimized negative affect. Perceived ability moderated the relation between ego orientation and personally controllable attributions. Hence, under the low perceived ability condition, ego orientation was associated with personally uncontrollable attributions, but the opposite was true for the high perceived ability group. An enhancement of both task orientation and perceived athletic competence is needed for adolescents to derive positive affective experiences from physical education.