Athletes’ relationships with their coaches have important implications for outcomes of psychological health. Further examination of these associations is needed to identify the aspects of the coach-athlete relationship most linked to athlete burnout and engagement. This study examined associations among athlete perceptions of the coach-athlete relationship and burnout and engagement across a competitive season. We hypothesized that athlete endorsement of higher levels of markers of the coach-athlete relationship (closeness, commitment, and complementarity) would be negatively associated with perceptions of burnout and positively associated with perceptions of engagement. Participants were female collegiate rowers (N=37; Mage=19.3 years, SD=1.18) who completed online self-report assessments of study variables across four seasonal survey waves. Multilevel linear modeling analyses revealed closeness, one of the coach-athlete relationship markers, to be a significant predictor of seasonal global burnout and engagement. Study findings inform the design of interventions to promote engagement and deter burnout via improving coach-athlete closeness perceptions.