Boris Becker was the defending champion but did not compete that year.
| Singles | |
|---|---|
| 1989 WCT Finals | |
| Champion |  John McEnroe |
| Runner-up | Brad Gilbert |
| Score | 6–3, 6–3, 7–6 |
John McEnroe won in the final 6–3, 6–3, 7–6 against Brad Gilbert.
The finals were held in Dallas, Texas at Reunion Arena.
Seeds
editA champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
John McEnroe (champion)
Mats Wilander (quarterfinals)
Ivan Lendl (semifinals)- Stefan Edberg (quarterfinals)
Draw
editKey
edit- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- SE = Special exempt
- PR = Protected ranking
- ITF = ITF entry
- JE = Junior exempt
- w/o = Walkover
- r = Retired
- d = Defaulted
- SR = Special ranking
| Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | John McEnroe
| 4 | 3 | |||||||||||||||||||||||
| Andre Agassi
| 6 | 0r | ||||||||||||||||||||||||
| 1 | John McEnroe
| 6 | 7 | 6 | 7 | |||||||||||||||||||||
| 3 |  Ivan Lendl
| 7 | 6 | 2 | 5 | |||||||||||||||||||||
| 3 | Ivan Lendl
| 7 | 1 | 7 | 6 | 7 | ||||||||||||||||||||
 Jakob Hlasek
| 6 | 6 | 6 | 7 | 6 | |||||||||||||||||||||
| 1 | John McEnroe
| 6 | 6 | 7 | ||||||||||||||||||||||
| Brad Gilbert
| 3 | 3 | 6 | |||||||||||||||||||||||
| Brad Gilbert
| 7 | 6 | 6 | |||||||||||||||||||||||
| 4 |  Stefan Edberg
| 6 | 1 | 3 | ||||||||||||||||||||||
| Brad Gilbert
| 6 | 6 | 6 | 6 | ||||||||||||||||||||||
| Mikael Pernfors
| 3 | 7 | 3 | 3 | ||||||||||||||||||||||
| Mikael Pernfors
| 2 | 6 | 3 | 6 | 6 | |||||||||||||||||||||
| 2 | Mats Wilander
| 6 | 1 | 6 | 2 | 3 | ||||||||||||||||||||
References
edit- 1989 WCT Finals Draw (Archived 2009-05-08)