Grand Slam Tournaments Semifinals Grand Slam Events Competition Format Semi-finals Draws Round-Robin Format ATP Finals Match Format Group Stage ATP Calendar Quarter-Finals Matches Masters 1000 Fairness in Competition Round Robin Schedule Final Match Semi-Finals Format Changes Davis Cup Finals Qualifiers Challenger Tournaments Wild Card Entry Finals U.S. Open Singles Competition Bracket Match Rules Brackets Matchups Match Outcomes Tournament Progression Main Draw Qualifying Rounds Match Draws Quarterfinals