# 1990 Prudential-Bache Securities Classic – Singles

Andre Agassi was the defending champion, but did not participate that year. Brad Gilbert won the title, defeating Christo van Rensburg 6–2, 6–1, in the final.

## Seeds

* Brad Gilbert (champion)
* Aaron Krickstein (second round, withdrew)
* Christo van Rensburg (final)
* Scott Davis (quarterfinals)
* Glenn Layendecker (second round)
* Jimmy Arias (first round)
* Veli Paloheimo (first round, retired)
* Ramesh Krishnan (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

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Brad Gilbert | 6 | 7 | | | | | |
| Q | MaliVai Washington | 2 | 5 | | | | | |
| Q | MaliVai Washington | 2 | 5 | | 1 | Brad Gilbert | 6 | 6 |
| | | | | | 3 | Christo van Rensburg | 2 | 1 |
| 3 | Christo van Rensburg | 6$^2$ | 6 | 7 | 3 | Christo van Rensburg | 2 | 1 |
| | David Pate | 7$^7$ | 3 | 5 | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | B Gilbert | 6 | 6 | | | | | | | | | | | | | | |
| | C Saceanu | 4 | 4 | | 1 | B Gilbert | 6 | 6 | | | | | | | | | |
| | L-A Wahlgren | 5 | 1 | | | J Brown | 2 | 1 | | | | | | | | | |
| | J Brown | 7 | 6 | | | | | | | 1 | B Gilbert | 6 | 6 | | | | |
| | J Rive | 6 | 6 | | | | | | | | J Rive | 3 | 3 | | | | |
| | J Tarango | 4 | 4 | | | J Rive | 3 | 7 | 6 | | | | | | | | |
| | M Nido | 6 | | | | M Nido | 6 | 5 | 4 | | | | | | | | |
| 7 | V Paloheimo | 4 | r | | | | | | | | | | | 1 | B Gilbert | 6 | 7 |
| 4 | S Davis | 4 | 7$^7$ | 6 | | | | | | | | | | Q | M Washington | 2 | 5 |
| | T Högstedt | 6 | 6$^5$ | 4 | 4 | S Davis | 1 | 6 | 6 | | | | | | | | |
| | D Goldie | 6 | 6 | | | D Goldie | 6 | 4 | 2 | | | | | | | | |
| | L Shiras | 3 | 1 | | | | | | | 4 | S Davis | 3 | 5 | | | | |
| Q | M Washington | 6 | 6 | | | | | | | Q | M Washington | 6 | 7 | | | | |
| | K Jones | 3 | 2 | | Q | M Washington | 6 | 7 | | | | | | | | | |
| WC | J Ross | 7$^7$ | 1 | 6 | WC | J Ross | 1 | 5 | | | | | | | | | |
| 6 | J Arias | 6$^5$ | 6 | 3 | | | | | | | | | | | | | |

### 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 | Semifinals |
| 5 | G Layendecker | 6 | 6 | | | | | | | | | | | | | | | | |
| WC | J Palmer | 3 | 1 | | 5 | G Layendecker | 4 | 7$^{12}$ | 4 | | | | | | | | | | |
| Q | R Deppe | 1 | 5 | | | J Stoltenberg | 6 | 6$^{10}$ | 6 | | | | | | | | | | |
| | J Stoltenberg | 6 | 7 | | | | | | | | J Stoltenberg | 4 | 6 | 1 | | | | | |
| | N Pereira | 7$^7$ | 6$^5$ | 7$^7$ | | | | | | 3 | C van Rensburg | 6 | 4 | 6 | | | | | |
| Q | R Weiss | 6$^2$ | 7$^7$ | 6$^3$ | | N Pereira | 3 | 6$^4$ | | | | | | | | | | | |
| | S Živojinović | 6$^2$ | 6 | 3 | 3 | C van Rensburg | 6 | 7$^7$ | | | | | | | | | | | |
| 3 | C van Rensburg | 7$^7$ | 3 | 6 | | | | | | | | | | | 3 | C van Rensburg | 6$^2$ | 6 | 7 |
| 8 | R Krishnan | 6$^2$ | 6 | 7 | | | | | | | | | | | | D Pate | 7$^7$ | 3 | 5 |
| | D Rostagno | 7$^7$ | 2 | 5 | 8 | R Krishnan | 2 | 6 | 3 | | | | | | | | | | |
| | D Pate | 6 | 6 | | | D Pate | 6 | 3 | 6 | | | | | | | | | | |
| | A Mronz | 4 | 4 | | | | | | | | D Pate | 6 | 7$^7$ | | | | | | |
| WC | A Hombrecher | 7 | 6 | | | | | | | WC | A Hombrecher | 4 | 6$^5$ | | | | | | |
| Q | D Engel | 5 | 3 | | WC | A Hombrecher | w/o | | | | | | | | | | | | |
| | M Zoecke | 1 | 2 | | 2 | A Krickstein | | | | | | | | | | | | | |
| 2 | A Krickstein | 6 | 6 | | | | | | | | | | | | | | | | |