This study explored stakeholders’ perceptions of Welsh adolescent participation in rugby union. A Straussian grounded-theory approach was adopted and data collection was conducted via semistructured interviews with 15 individuals involved in Welsh adolescent rugby union. Data were analyzed through open and axial coding procedures and theoretical integration. Stakeholders perceived that continued rugby participation resulted from a positive evaluation of one’s participation in the sport and one’s ability to cope with the demands experienced throughout transitions during adolescence. Overall, the findings provide a substantive grounded theory of stakeholders’ perceptions of continued adolescent participation in Welsh rugby union, and applied implications, in an aim to promote continued sport participation.