Summary : Theoretical advances in achievement goal theory in the sport setting The major purpose of this paper was to demonstrate the theoretical relevance and empirical validity of the trichotomous model for studying achievement motivation in the sport setting. This framework suggests that performance goals can be partitioned into separate approach and avoidance tendencies. Consequently, the trichotomous achievement goal framework holds that three distinct achievement goals can be identified ; i.e. (a) Mastery goals that focus on the development of competence and task mastery (b) Performance-approach goals that focus on the attainment of favorable judgments of normative competence, and (c) Performance-avoidance goals that focus on avoiding unfavorable judgments of normative competence. Specifically, are examined : 1/ the conceptual fundations of the achievement goals theory framework, 2/ the theoretical basis and the empirical validity of the trichotomous model in the sport setting, 3/ the personal and environment antecedents of goal adoption, 4/ the relationships between the three achievement goals and sport intrinsic motivation, and 5/ the links between the three achievement goals and sport learning behaviors. Based on this work, it is proposed that the trichotomous model can contribute to a more comprehensive understanding of achievement goals and optimal motivation in sport and physical education settings. Keys words : performance avoidance goals, performance approach goals, mastery goals, achievement motivation in sport setting.