A standard professional tennis match can vary widely in duration, often lasting anywhere from one hour to over three hours or more, depending on the players’ skill levels and styles of play. Matches are typically contested as best-of-three or best-of-five sets, with each set requiring a player to win at least six games by a margin of two games. Factors influencing match length include the players' playing pace, the number of games in a set, and possible tiebreaks or injuries that may delay play.