# 1990 Volvo San Francisco – Singles

Brad Gilbert was the defending champion, but lost in the first round to Gary Muller.
Andre Agassi won the title by defeating Todd Witsken 6–1, 6–3 in the final.

## Seeds

* Brad Gilbert (first round)
* Andre Agassi (champion)
* Kevin Curren (first round)
* Christo van Rensburg (quarterfinals)
* Jim Grabb (semifinals)
* Scott Davis (second round)
* Richey Reneberg (quarterfinals)
* Paul Annacone (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

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | Todd Witsken | 6 | 7$^7$ | | | | |
| | Joey Rive | 4 | 6$^4$ | | | | |
| | Joey Rive | 4 | 6$^4$ | | Todd Witsken | 1 | 3 |
| | | | | 2 | Andre Agassi | 6 | 6 |
| 5 | Jim Grabb | 2 | 2 | 2 | Andre Agassi | 6 | 6 |
| 2 | Andre Agassi | 6 | 6 | | | | |

### Top half

| 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 |
| 1 | B Gilbert | 4 | 6$^5$ | | | | | | | | | | | | | | |
| | G Muller | 6 | 7$^7$ | | | G Muller | 4 | 3 | | | | | | | | | |
| | R Seguso | 2 | 4 | | | T Witsken | 6 | 6 | | | | | | | | | |
| | T Witsken | 6 | 6 | | | | | | | | T Witsken | 7$^7$ | 6 | | | | |
| WC | A Hombrecher | 6$^5$ | 6 | 3 | | | | | | 7 | R Reneberg | 6$^5$ | 4 | | | | |
| Q | C Garner | 7$^7$ | 3 | 6 | Q | C Garner | 1 | 3 | | | | | | | | | |
| | L Shiras | 6$^5$ | 3 | | 7 | R Reneberg | 6 | 6 | | | | | | | | | |
| 7 | R Reneberg | 7$^7$ | 6 | | | | | | | | | | | | T Witsken | 6 | 7$^7$ |
| 3 | K Curren | 2 | 5 | | | | | | | | | | | | J Rive | 4 | 6$^4$ |
| | J Rive | 6 | 7 | | | J Rive | 4 | 6 | 6 | | | | | | | | |
| | L Duncan | 7 | 5 | 7 | | L Duncan | 6 | 3 | 3 | | | | | | | | |
| | K Evernden | 5 | 7 | 5 | | | | | | | J Rive | 2 | 6 | 6 | | | |
| | J Arias | 6 | 6 | | | | | | | | J Arias | 6 | 4 | 2 | | | |
| | M Vajda | 4 | 3 | | | J Arias | 6 | 7$^7$ | | | | | | | | | |
| | G Layendecker | 2 | 6 | 3 | 6 | S Davis | 3 | 6$^0$ | | | | | | | | | |
| 6 | S Davis | 6 | 3 | 6 | | | | | | | | | | | | | |

### Bottom half

| 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 |
| 5 | J Grabb | 6 | 7$^9$ | | | | | | | | | | | | | | | |
| | J Brown | 3 | 6$^7$ | | 5 | J Grabb | 6 | 6$^4$ | 6 | | | | | | | | | |
| | D Rostagno | 7 | 3 | | | D Rostagno | 2 | 7$^7$ | 4 | | | | | | | | | |
| | P Chamberlin | 5 | 0$^r$ | | | | | | | 5 | J Grabb | 4 | 6 | 7$^8$ | | | | |
| Q | D Macpherson | 2 | 4 | | | | | | | 4 | C van Rensburg | 6 | 2 | 6$^6$ | | | | |
| | K Jones | 6 | 6 | | | K Jones | 2 | 6 | 5 | | | | | | | | | |
| WC | M Davis | 4 | 7$^7$ | 3 | 4 | C van Rensburg | 6 | 3 | 7 | | | | | | | | | |
| 4 | C van Rensburg | 6 | 6$^4$ | 6 | | | | | | | | | | | 5 | J Grabb | 2 | 2 |
| 8 | P Annacone | 7$^7$ | 7$^7$ | | | | | | | | | | | | 2 | A Agassi | 6 | 6 |
| Q | D Cassidy | 6$^5$ | 6$^5$ | | 8 | P Annacone | 6 | 6 | | | | | | | | | | |
| | T Wilkison | 6$^3$ | 6 | 7$^7$ | | T Wilkison | 2 | 2 | | | | | | | | | | |
| Q | P McEnroe | 7$^7$ | 1 | 6$^3$ | | | | | | 8 | P Annacone | 4 | 2 | | | | | |
| WC | J Stark | 4 | 7 | 2 | | | | | | 2 | A Agassi | 6 | 6 | | | | | |
| | D Goldie | 6 | 5 | 6 | | D Goldie | 6 | 0 | 1 | | | | | | | | | |
| | R Krishnan | 2 | 7$^7$ | 0 | 2 | A Agassi | 2 | 6 | 6 | | | | | | | | | |
| 2 | A Agassi | 6 | 6$^5$ | 6 | | | | | | | | | | | | | | |