1989 Nabisco Masters – Singles

Stefan Edberg defeated the defending champion Boris Becker in the final, 4–6, 7–6, 6–3, 6–1 to win the singles title at the 1989 Nabisco Masters.

Rod Laver group
''Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, or of games won; 5. steering-committee decision.''

Ilie Năstase group
''Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, or of games won; 5. steering-committee decision.''