Qualification
Format
ATP Finals appearances
;Key Current format * W = winner; * F = runner-up; * SF = lost in semi-finals (1972–present); * RR = lost in Round Robin group stage (1972–1981, 1986–present); * A = Alternate (did not play from the beginning; 1996–present); * A' = Alternate (played from the beginning = original player withdrew before the tournament); * R = withdrew during the tournament (1996–present). Older format * QF = lost in quarter-finals (1982–1985); * R16 = lost in 1st round/Round of 16 (1982–1985); * 3rd–7th = standings in the RR group (1970–1971); ;Note When there are more than eight players listed for any year since 1986, it is usually due to withdrawal by one or more players because of injury. When a player withdraws early in the tournament, his place is filled by the next-highest qualifier. Participants are listed in order of number of appearances and best result with players being active indicated in bold.References