Have you wondered why coaches are often the first people athletes turn to, both when they are performing poorly and when they are winning? It is because the coach-athlete relationship is the most important relationship developed in sport. Athletes spend more time with their coaches than with any other people in their lives generally. They look up to their coaches and rely on them for technical, tactical, and personal advice. Gold medal-winning Olympic athletes like Wayde van Niekerk, Simone Biles, Michael Phelps, Laura Muir, and LeBron James have said that their coaches are the reason for their success. In this article, we will discuss what makes a successful coach-athlete relationship, describe the impact of the coach-athlete relationship on an athlete’s success, and provide tips that you and your coaches can use to develop a good working partnership.