A round-robin tournament is a type of competition where each participant competes against every other participant. This format ensures that all players or teams have an equal opportunity to compete, making it fair and comprehensive. The results from each match are typically used to determine rankings based on wins, losses, and sometimes points scored. These tournaments are commonly used in various sports, such as tennis, soccer, and chess. They can also be applied in academic competitions or games, allowing for a thorough assessment of each competitor's skills. The overall winner is usually the one with the most victories at the end of the tournament.