In this presentation we will discuss our experiences of working together as Clinical and Sport Performance Psychologists within elite / high performance sport. We will consider sport specific examples where we have been able to influence athlete and staff functioning, alongside wider system and organisational impact. We will highlight some of the potential barriers to collaboration and draw on learning from colleagues within the English Institute of Sport, wider sports environments and international forums. We will explore the interface between mental health and performance within the context of our professional roles, and we hope that our significant experience will be helpful in enabling others to consider how to progress in this area.