# 1988 U.S. Women's Hard Court Championships – Singles

Steffi Graf won in the final 6–4, 6–1 against Katerina Maleeva.

## 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)
* Helena Suková (semifinals)
* Lori McNeil (semifinals)
* Katerina Maleeva (final)
* Natasha Zvereva (quarterfinals)
* Nathalie Tauziat (quarterfinals)
* Patty Fendick (quarterfinals)
* Larisa Savchenko (second round)

## 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 | | | | | | | | | | | | | | | | | | | | |
| | C MacGregor | 1 | 2 | | 1 | S Graf | 6 | 6 | | | | | | | | | | | | | | | |
| | S Gomer | 6 | 6 | | | S Gomer | 3 | 2 | | | | | | | | | | | | | | | |
| | A Villagrán | 3 | 2 | | | | | | | 1 | S Graf | 6 | 6 | | | | | | | | | | |
| | B Bowes | 6 | 6 | | | | | | | 6 | N Tauziat | 3 | 2 | | | | | | | | | | |
| | M Torres | 3 | 3 | | | B Bowes | 6 | 6 | 2 | | | | | | | | | | | | | | |
| | L Allen | 6 | 6 | 2 | 6 | N Tauziat | 4 | 7 | 6 | | | | | | | | | | | | | | |
| 6 | N Tauziat | 4 | 7 | 6 | | | | | | | | | | | 1 | S Graf | 6 | 6 | 6 | | | | |
| 3 | L McNeil | 6 | 6 | | | | | | | | | | | | 3 | L McNeil | 7 | 1 | 1 | | | | |
| | I Demongeot | 1 | 1 | | 3 | L McNeil | 6 | 4 | 6 | | | | | | | | | | | | | | |
| | N Provis | 6 | 6 | | | N Provis | 4 | 6 | 3 | | | | | | | | | | | | | | |
| | H Kelesi | 4 | 3 | | | | | | | 3 | L McNeil | 3 | 6 | 7 | | | | | | | | | |
| | R Fairbank | 6 | 6 | 4 | | | | | | 5 | N Zvereva | 6 | 3 | 5 | | | | | | | | | |
| | L Meskhi | 7 | 2 | 6 | | L Meskhi | 2 | 0 | | | | | | | | | | | | | | | |
| | G Magers | 5 | 3 | | 5 | N Zvereva | 6 | 6 | | | | | | | | | | | | | | | |
| 5 | N Zvereva | 7 | 6 | | | | | | | | | | | | | | | | | 1 | Steffi Graf | 6 | 6 |
| 8 | L Savchenko | 6 | 5 | 6 | | | | | | | | | | | | | | | | 4 | Katerina Maleeva | 4 | 1 |
| | C Benjamin | 1 | 7 | 0 | 8 | L Savchenko | 1 | 6 | 1 | | | | | | | | | | | | | | |
| | E Inoue | 6 | 6 | 7 | | E Inoue | 6 | 4 | 6 | | | | | | | | | | | | | | |
| | M Werdel | 7 | 1 | 6 | | | | | | | E Inoue | 6 | 2 | 3 | | | | | | | | | |
| | J Hetherington | 4 | 3 | | | | | | | 4 | K Maleeva | 1 | 6 | 6 | | | | | | | | | |
| | A Kijimuta | 6 | 6 | | | A Kijimuta | 1 | 3 | | | | | | | | | | | | | | | |
| | J Durie | 1 | 4 | | 4 | K Maleeva | 6 | 6 | | | | | | | | | | | | | | | |
| 4 | K Maleeva | 6 | 6 | | | | | | | | | | | | 4 | K Maleeva | 6 | 6 | 6 | | | | |
| 7 | P Fendick | 7 | 6 | | | | | | | | | | | | 2 | H Suková | 3 | 7 | 4 | | | | |
| | S Meier | 5 | 2 | | 7 | P Fendick | 7 | 6 | | | | | | | | | | | | | | | |
| | M L Daniels | 2 | 6 | 6 | | M L Daniels | 5 | 3 | | | | | | | | | | | | | | | |
| | C Christian | 6 | 4 | 2 | | | | | | 7 | P Fendick | 4 | 6 | | | | | | | | | | |
| | K Keil | 4 | 6 | 7 | | | | | | 2 | H Suková | 6 | 7 | | | | | | | | | | |
| | A Grossman | 6 | 4 | 6 | | K Keil | 1 | 4 | | | | | | | | | | | | | | | |
| | T Mochizuki | 2 | 3 | | 2 | H Suková | 6 | 6 | | | | | | | | | | | | | | | |
| 2 | H Suková | 6 | 6 | | | | | | | | | | | | | | | | | | | | |