This study aimed to determine the relationship between narcissism and team cohesion of transformational leadership and individual sports athletes interactions. In particular, individual sports can present a model to verify the level of perception of team cohesion according to the type of record sports and martial arts sports. Transformational leadership, narcissism, and team cohesion were measured among 225 college athletes. SPSS 24.0, Amos 24.0, PROCESS Macro programs (Model No. 5) were used for data analysis. The analysis includes frequency analysis, Cronbach's alpha values, confirmatory factor analysis (CFA), Pearson's correlation, and moderating effect. Transformational leadership significantly positively affected team cohesion and narcissism. Non-narcissism also significantly positively affected team cohesion. The interaction between transformational leadership and individual athletes was significantly higher for martial arts sports. Team cohesion was also important for athletes in individual sports, thus expanding the boundaries of transformational leadership theory. To cultivate a sports team (organization), strategic sports management will be necessary to enhance team cohesion.