The Grand Slam Cup was not recognized by the Association of Tennis Professionals (ATP) and participants did not receive points in the ATP computer rankings nor have it credited as an official career title. Following the discontinuation of the Cup in 1999, the ATP decided to give the event retroactive recognition and added it to players' record of official titles. A compromise between the ITF and the ATP was announced on December 9, 1999 which merged the Cup with the ATP Tour World Championship, the ATP's year-end tournament also held annually in Germany, giving birth to the ATP World Tour Finals, an official tour event.