# 1988 Volvo U.S. National Indoor – Singles

Stefan Edberg was the defending champion, but lost in the third round to Jim Grabb.
Andre Agassi won the title by defeating Mikael Pernfors 6–4, 6–4, 7–5 in the final.

## Seeds

All seeds received a bye to the second round.
* Stefan Edberg (third round)
* Andrés Gómez (quarterfinals)
* David Pate (quarterfinals)
* Eliot Teltscher (third round, withdrew)
* Amos Mansdorf (quarterfinals)
* Andre Agassi (champion)
* Peter Lundgren (second round)
* Christo van Rensburg (third round)
* Mikael Pernfors (final)
* Kevin Curren (semifinals)
* Ramesh Krishnan (third round)
* Paul Annacone (third round)
* Kelly Evernden (second round)
* Jim Pugh (third round)
* Johan Kriek (third round)
* Jay Berger (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

### Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final | Final | |
| | Jim Grabb | 3 | 1 | | | | | | | | | | | | |
| 9 | Mikael Pernfors | 6 | 6 | | | | | | | | | | | | |
| 9 | Mikael Pernfors | 6 | 6 | | 9 | Mikael Pernfors | 6 | 6 | | | | | | | |
| | | | | | WC | Robert Seguso | 4 | 4 | | | | | | | |
| WC | Robert Seguso | 7 | 7 | | WC | Robert Seguso | 4 | 4 | | | | | | | |
| 5 | Amos Mansdorf | 6 | 6 | | | | | | | | | | | | |
| 5 | Amos Mansdorf | 6 | 6 | | | | | | 9 | Mikael Pernfors | 4 | 4 | 5 | | |
| | | | | | | | | | 6 | Andre Agassi | 6 | 6 | 7 | | |
| 6 | Andre Agassi | 6 | 6 | | | | | | | | | | | 6 | Andre Agassi | 6 | 6 | 7 |
| 3 | David Pate | 4 | 2 | | | | | | | | | | | | |
| 3 | David Pate | 4 | 2 | | 6 | Andre Agassi | 6 | 6 | | | | | | | |
| | | | | | 10 | Kevin Curren | 1 | 4 | | | | | | | |
| 10 | Kevin Curren | 3 | 6 | 6 | 10 | Kevin Curren | 1 | 4 | | | | | | | |
| 2/WC | Andrés Gómez | 6 | 3 | 4 | | | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1 | S Edberg | 7 | 6 | | | | | | | | | | |
| | R Reneberg | 4 | 6 | 6 | | D Keretić | 6 | 4 | | | | | | | | | | |
| | D Keretić | 6 | 4 | 7 | | | | | | 1 | S Edberg | 4 | 4 | | | | | |
| | J Grabb | 6 | 6 | | | | | | | | J Grabb | 6 | 6 | | | | | |
| | M Woodforde | 3 | 4 | | | J Grabb | 6 | 3 | 6 | | | | | | | | | |
| | | | | | 16/Q | J Berger | 4 | 6 | 1 | | | | | | | | | |
| | | | | | | | | | | | | | | | | J Grabb | 3 | 1 |
| | | | | | | | | | | | | | | | 9 | M Pernfors | 6 | 6 |
| | | | | | 9 | M Pernfors | 4 | 6 | 6 | | | | | | | | | |
| | J Lozano | 6 | 2 | 7 | | J Lozano | 6 | 1 | 2 | | | | | | | | | |
| Q | G Connell | 4 | 6 | 6 | | | | | | 9 | M Pernfors | 6 | 6 | 6 | | | | |
| | B Dyke | 5 | 2 | | | | | | | 8 | C van Rensburg | 7 | 4 | 3 | | | | |
| | G Holmes | 7 | 6 | | | G Holmes | 1 | 5 | | | | | | | | | | |
| | | | | | 8 | C van Rensburg | 6 | 7 | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 4 | E Teltscher | 6 | 6 | | | | | | | | | | |
| | S Giammalva Jr. | 7 | 6 | | S Giammalva Jr. | 4 | 4 | | | | | | | | | | |
| | B Orešar | 6 | 3 | | | | | | 4 | E Teltscher | | | | | | | |
| | T Wilkison | 1 | 1 | | | | | | WC | R Seguso | w | / | o | | | | |
| WC | R Seguso | 6 | 6 | WC | R Seguso | 6 | 5 | 7 | | | | | | | | | |
| | | | | 13 | K Evernden | 3 | 7 | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | WC | R Seguso | 7 | 7 |
| | | | | | | | | | | | | | | 5 | A Mansdorf | 6 | 6 |
| | | | | 11 | R Krishnan | 5 | 6 | 6 | | | | | | | | | |
| Q | R Leach | 3 | 2 | WC | M Chang | 7 | 2 | 3 | | | | | | | | | |
| WC | M Chang | 6 | 6 | | | | | | 11 | R Krishnan | 2 | 2 | | | | | |
| Q | M Dickson | 7 | 6 | | | | | | 5 | A Mansdorf | 6 | 6 | | | | | |
| | J Brown | 5 | 1 | Q | M Dickson | 2 | 4 | | | | | | | | | | |
| | | | | 5 | A Mansdorf | 6 | 6 | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 6 | A Agassi | 6 | 6 | | | | | | | | | | |
| | J Ross | 6 | 6 | | | J Ross | 4 | 4 | | | | | | | | | | |
| | W Masur | 4 | 4 | | | | | | | 6 | A Agassi | 6 | 6 | 6 | | | | |
| | L Duncan | 6 | 6 | | | | | | | 12 | P Annacone | 7 | 1 | 4 | | | | |
| Q | R Acuña | 4 | 2 | | | L Duncan | 2 | 4 | | | | | | | | | | |
| | | | | | 12 | P Annacone | 6 | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 6 | A Agassi | 6 | 6 |
| | | | | | | | | | | | | | | | 3 | D Pate | 4 | 2 |
| | | | | | 14 | J Pugh | 7 | 6 | 6 | | | | | | | | | |
| | D Cassidy | 6 | 6 | 6 | | J Rive | 6 | 7 | 3 | | | | | | | | | |
| | J Rive | 3 | 7 | 7 | | | | | | 14 | J Pugh | 6 | 3 | 3 | | | | |
| | G Muller | 6 | 6 | | | | | | | 3 | D Pate | 4 | 6 | 6 | | | | |
| | K Flach | 4 | 3 | | | G Muller | 3 | 2 | | | | | | | | | | |
| | | | | | 3 | D Pate | 6 | 6 | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 7 | P Lundgren | 3 | 5 | | | | | | | | | | | |
| | M Davis | 6 | 3 | | | A Krickstein | 6 | 7 | | | | | | | | | | | |
| | A Krickstein | 7 | 6 | | | | | | | | A Krickstein | 4 | 6 | | | | | | |
| | D Rostagno | 7 | 3 | 3 | | | | | | 10 | K Curren | 6 | 7 | | | | | | |
| | S Davis | 6 | 6 | 6 | | S Davis | 7 | 0 | 2 | | | | | | | | | | |
| | | | | | 10 | K Curren | 6 | 6 | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 10 | K Curren | 3 | 6 | 6 |
| | | | | | | | | | | | | | | | 2/WC | A Gómez | 6 | 3 | 4 |
| | | | | | 15 | J Kriek | 6 | 6 | 6 | | | | | | | | | | |
| WC | M Purcell | 7 | 6 | | WC | M Purcell | 7 | 1 | 2 | | | | | | | | | | |
| Q | E Edwards | 6 | 2 | | | | | | | 15 | J Kriek | 7 | 3 | 4 | | | | | |
| | J Yzaga | 6 | 6 | | | | | | | 2/WC | A Gómez | 5 | 6 | 6 | | | | | |
| | C Pridham | 3 | 3 | | | J Yzaga | 5 | 6 | 4 | | | | | | | | | | |
| | | | | | 2/WC | A Gómez | 7 | 2 | 6 | | | | | | | | | | |