1989 Nabisco Masters
The 1989 Nabisco Masters were tennis tournaments played on indoor carpet courts at Madison Square Garden in New York City, New York, United States and at the Royal Albert Hall in London in England. It was the 20th edition of the year-end singles championships, the 15th edition of the year-end doubles championships, and both tournaments were part of the 1989 Nabisco Grand Prix. The singles championships were held in New York from November 27 through December 3, 1989, while the doubles championship were held in London from December 6 through December 10, 1989.Finals
Singles
defeated Boris Becker, 4–6, 7–6, 6–3, 6–1.
- It was Edberg's 2nd title of the year and the 35th of his career.
Doubles
/ Patrick McEnroe defeated John Fitzgerald / Anders Järryd, 7–5, 7–6, 5–7, 6–3.
- It was Grabb's 2nd title of the year and the 5th of his career. It was McEnroe's 2nd title of the year and the 4th of his career.