Sports arbiters are responsible for ensuring fair play in sports. They are commonly referred to as umpires or referees, depending on the sport. Umpires (UMP) are typically found in baseball and softball games, while referees (REF) are more commonly seen in basketball, football, and soccer games. Sports arbiters are responsible for making sure that the rules of the game are followed and that all players are treated fairly. They also have the authority to make decisions regarding penalties and other disciplinary actions.