The dual model of passion asserts that passion can be harmonious or obsessive depending on how the passionate activity is internalized into one’s identity (Vallerand, et al., 2003). The purpose of the study was to explore the relationship between expert coaches’ passion for coaching and their performance, health and ability to balance coach and family demands from the perspective of the expert coaches and their partner. The participants in this study were expert coaches working with national team members (i.e., those competing at the Olympics/Paralympics and/or World Championships) and their partners. To create sustainable coaching performance, coaching environments should protect coaches from the negative side effects of obsessive passion through effective planning for recovery. The partner results indicated coach partners are key to coach performance and fully committed to the performance of the expert coach. Further study should examine interventions that protect coaches from the negative outcomes of obsessive passion.