ATP tennis tour schedule includes numerous tennis tournaments, which are held around the world throughout the year. Tennis tournaments included in the ATP Tennis schedule are divided in various groups. The main groups of tennis tournaments held under ATP Tennis are Grand Slams, Tennis Masters Cup, ATP Masters Series, ATP International Series, ATP International Series Gold, ATP Challenger Series, Satellites Tournaments and Futures tournaments. The Satellite Tournaments and Future Tournaments are contested as ITF events, which are included in the ATP Tennis schedule. Tennis Master Cup is also held in association with the ITF.
Players participating in the tennis tournaments included in the schedule of ATP Tennis are given points on the basis of their performance. According to the points accumulated during the tennis tournaments, players are given place on the ATP ranking. Many players have earned a place in the history of tennis for their performance in the ATP Tennis tournaments. Some of the world famous tennis players, who have been on the top of the ATP rankings, are Rafael Nadal, Roger Federer, Andre Agassi, Jimmy Connors, Ivan Lendl, John McEnroe, Pete Sampras, Bjorn Borg, Thomas Muster, Ilie Nastase, Boris Becker, Guillermo Vilas, Lleyton Hewitt, Andy Roddick, Carlos Moya, Marat Safin, Juan Carlos Ferrero, Tim Henman, Mark Philippoussis, Gustavo Kuerten, Tommy Haas, Stefan Edberg and Jim Courier
