Background: It is becoming more realistic in sport to experience and achieve certain qualities that create 'the highest good'. One of the conditions of this transgression is to obey categorically the rules of fair play. Material/Methods: This paper describes personal, social and educational determinants of moral values represented by young athletes. 212 young sportsmen were selected for purposes of this research. They were students from schools with religious and sports background. Results: The results of the research show the relation between levels of morality of fair play in sport and preferred attitudes as well as educational and religious influence of teachers. Conclusions: Personality and temperamental gauges influence the declared moral convictions considerably: neurotics declare higher social morality than nonneurotics, also due to sport behaviours.