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ii Achievement Goal theory and Self Determination theory suggest that the goal orientation of an individual does not develop in a closed room. Rather, it is suggested that an individual’s goal orientation is altered through the different perceived motivational climates established in an achievement setting. Therefore, this study addressed two questions: (1) Does an athlete’s goal orientation change over the course of a competitive youth football season? (2) Do coaches and parents establish a motivational climate that affects the athlete’s goal orientation over the course of a competitive youth football season? A total of 149 male athletes, 8-13 years old completed two rounds of questionnaires. The first round occurred early in the season and consisted of