Sports Psychology addresses the interactions between psychology and sports performance, including the psychological aspects of optimal athletic performance, the psychological care and well-being of athletes, coaches, and sports organizations, and the connection between physical and psychological functioning. Sports psychologists can participate in various activities, mostly focused on working to understand what motivates athletes and how athletes can improve their performance. The purpose of the study is to find out Psychological variables between training under a coach and self-training athletes. Thirty athletes training under a coach (15) and self-training (15) was selected randomly from Virudhunagar district, their age group between 22 to 26 years. The subjects were divided into two groups as under a coach group and self-training group. As per the available works of literature, the standardized questioners were used to collect relevant data on the selected variables as stress, anxiety, achievement motivation, and happiness. The collected data were statistically analyzed by using an independent t-test. In all the cases 0.05 level of confidence was fixed as a level of confidence to test the hypothesis. The result shows that there was significantly different between training under a coach group and self-training group on stress, anxiety, achievement motivation, and happiness.