# 1989 U.S. Women's Hard Court Championships – Singles

Steffi Graf was the defending champion and won in the final 6–1, 6–4 against Ann Henricksson.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
* Steffi Graf (champion)
* Manuela Maleeva (second round)
* Natasha Zvereva (first round)
* Claudia Kohde-Kilsch (first round)
* Patty Fendick (quarterfinals)
* Hana Mandlíková (semifinals)
* Gretchen Magers (first round)
* Terry Phelps (quarterfinals)

## Draw
### Key

* 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
| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | S Graf | 6 | 6 | | | | | | | | | | | | | | | | | | | | |
| | B Herr | 0 | 1 | | 1 | S Graf | 6 | 6 | | | | | | | | | | | | | | | |
| | J Hetherington | 5 | 6 | 2 | | L-A Eldredge | 0 | 1 | | | | | | | | | | | | | | | |
| | L-A Eldredge | 7 | 4 | 6 | | | | | | 1 | S Graf | 6 | 6 | | | | | | | | | | |
| | L Allen | 3 | 3 | | | | | | | 8 | T Phelps | 3 | 0 | | | | | | | | | | |
| | D van Rensburg | 6 | 6 | | | D van Rensburg | 5 | 7 | 3 | | | | | | | | | | | | | | |
| | M Torres | 5 | 2 | | 8 | T Phelps | 7 | 5 | 6 | | | | | | | | | | | | | | |
| 8 | T Phelps | 7 | 6 | | | | | | | | | | | | 1 | S Graf | 7 | 6 | | | | | |
| 4 | C Kohde-Kilsch | 6 | 6 | 6 | | | | | | | | | | | 6 | H Mandlíková | 6 | 3 | | | | | |
| | P Louie-Harper | 1 | 7 | 7 | | P Louie-Harper | 2 | 7 | 1 | | | | | | | | | | | | | | |
| | C Benjamin | 7 | 6 | | | C Benjamin | 6 | 6 | 6 | | | | | | | | | | | | | | |
| | K Schimper | 5 | 1 | | | | | | | | C Benjamin | 5 | 5 | | | | | | | | | | |
| | E Pfaff | 6 | 4 | 7 | | | | | | 6 | H Mandlíková | 7 | 7 | | | | | | | | | | |
| | K Steinmetz | 3 | 6 | 6 | | E Pfaff | 4 | 6 | 2 | | | | | | | | | | | | | | |
| | B Bowes | 3 | 7 | 0 | 6 | H Mandlíková | 6 | 3 | 6 | | | | | | | | | | | | | | |
| 6 | H Mandlíková | 6 | 5 | 6 | | | | | | | | | | | | | | | | 1 | Steffi Graf | 6 | 6 |
| 7 | G Magers | 4 | 6 | | | | | | | | | | | | | | | | | | Ann Henricksson | 1 | 4 |
| | K Rinaldi | 6 | 7 | | | K Rinaldi | 6 | 2 | 2 | | | | | | | | | | | | | | |
| | A Villagrán | 6 | 3 | 3 | | A Henricksson | 3 | 6 | 6 | | | | | | | | | | | | | | |
| | A Henricksson | 3 | 6 | 6 | | | | | | | A Henricksson | 6 | 5 | 6 | | | | | | | | | |
| | E Hakami | 3 | 7 | 4 | | | | | | | L Ferrando | 3 | 7 | 4 | | | | | | | | | |
| | G Fernández | 6 | 5 | 6 | | G Fernández | 7 | 3 | 2 | | | | | | | | | | | | | | |
| | L Ferrando | 6 | 6 | | | L Ferrando | 6 | 6 | 6 | | | | | | | | | | | | | | |
| 3 | N Zvereva | 4 | 4 | | | | | | | | | | | | | A Henricksson | 6 | 4 | 6 | | | | |
| 5 | P Fendick | 6 | 6 | | | | | | | | | | | | | K Adams | 3 | 6 | 3 | | | | |
| | W White | 1 | 4 | | 5 | P Fendick | 6 | 6 | | | | | | | | | | | | | | | |
| | P Vásquez | 6 | 2 | | | M L Daniels | 3 | 1 | | | | | | | | | | | | | | | |
| | M L Daniels | 7 | 6 | | | | | | | 5 | P Fendick | 6 | 6 | 6 | | | | | | | | | |
| | J Byrne | 6 | 4 | 2 | | | | | | | K Adams | 4 | 7 | 7 | | | | | | | | | |
| | K Adams | 3 | 6 | 6 | | K Adams | 2 | 6 | 6 | | | | | | | | | | | | | | |
| | C Cunningham | 3 | 1 | | 2 | M Maleeva | 6 | 3 | 3 | | | | | | | | | | | | | | |
| 2 | M Maleeva | 6 | 6 | | | | | | | | | | | | | | | | | | | | |