# 1992 Estoril Open – Singles

Sergi Bruguera was the defending champion, but finished runner-up this year.
Carlos Costa won the tournament, beating Bruguera in the final, 4–6, 6–2, 6–2.

## Seeds

* Ivan Lendl (quarterfinals)
* Emilio Sánchez (semifinals)
* Karel Nováček (second round)
* Sergi Bruguera (final)
* Francisco Clavet (first round)
* Goran Prpić (first round)
* Jordi Arrese (semifinals)
* Javier Sánchez (first 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 | Final |
| 7 | Jordi Arrese | 1 | 1 | | | | | | |
| 4 | Sergi Bruguera | 6 | 6 | | | | | | |
| 4 | Sergi Bruguera | 6 | 6 | | 4 | Sergi Bruguera | 6 | 2 | 2 |
| | | | | | | Carlos Costa | 4 | 6 | 6 |
| | Carlos Costa | 4 | 7$^7$ | 7$^7$ | | Carlos Costa | 4 | 6 | 6 |
| 2 | Emilio Sánchez | 6 | 6$^5$ | 6$^5$ | | | | | |

### Top half

| 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 |
| 1 | I Lendl | 7 | 3 | | | | | | | | | | | | | | |
| | M Koevermans | 5 | 0$^r$ | 1 | I Lendl | 5 | 6 | 6 | | | | | | | | | |
| Q | J Molina | 6 | 6 | Q | J Molina | 7 | 4 | 2 | | | | | | | | | |
| | R Agénor | 1 | 1 | | | | | | 1 | I Lendl | 3 | 6 | 5 | | | | |
| LL | U Riglewski | 7$^{11}$ | 7 | | | | | | 7 | J Arrese | 6 | 4 | 7 | | | | |
| | C Miniussi | 6$^9$ | 5 | LL | U Riglewski | 5 | 2 | | | | | | | | | | |
| | R Azar | 2 | 3 | 7 | J Arrese | 7 | 6 | | | | | | | | | | |
| 7 | J Arrese | 6 | 6 | | | | | | | | | | | 7 | J Arrese | 1 | 1 |
| 4 | S Bruguera | 6 | 6 | | | | | | | | | | | 4 | S Bruguera | 6 | 6 |
| Q | M Geserer | 3 | 1 | 4 | S Bruguera | 6 | 6 | | | | | | | | | | |
| | R Gilbert | 6 | 6 | | R Gilbert | 3 | 2 | | | | | | | | | | |
| | T Carbonell | 2 | 2 | | | | | | 4 | S Bruguera | 6 | 6 | | | | | |
| Q | B Mota | 3 | 3 | | | | | | WC | J Cunha e Silva | 2 | 1 | | | | | |
| WC | J Cunha e Silva | 6 | 6 | WC | J Cunha e Silva | 7$^7$ | 4 | | | | | | | | | | |
| | H Skoff | 6 | 6 | | H Skoff | 6$^4$ | 1$^r$ | | | | | | | | | | |
| 5 | F Clavet | 3 | 2 | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | G Prpić | 1 | 6$^8$ | | | | | | | | | | | | | | | |
| | C Costa | 6 | 7$^{10}$ | | | C Costa | 6 | 6 | | | | | | | | | | |
| | A Gómez | 6 | 7$^9$ | | | A Gómez | 2 | 4 | | | | | | | | | | |
| WC | E Couto | 3 | 6$^7$ | | | | | | | | C Costa | 6 | 6 | | | | | |
| | H de la Peña | 6 | 6 | | | | | | | | H de la Peña | 4 | 1 | | | | | |
| | V Paloheimo | 3 | 3 | | | H de la Peña | 7$^7$ | 6 | | | | | | | | | | |
| WC | N Marques | 2 | 2 | | 3 | K Nováček | 6$^3$ | 2 | | | | | | | | | | |
| 3 | K Nováček | 6 | 6 | | | | | | | | | | | | C Costa | 4 | 7$^7$ | 7$^7$ |
| 8 | J Sánchez | 4 | 6$^8$ | | | | | | | | | | | 2 | E Sánchez | 6 | 6$^5$ | 6$^5$ |
| | F Fontang | 6 | 7$^{10}$ | | | F Fontang | 7$^7$ | 2 | 7$^9$ | | | | | | | | | |
| | G López | 6$^5$ | 7 | 6 | | G López | 6$^4$ | 6 | 6$^7$ | | | | | | | | | |
| | M Jaite | 7$^7$ | 5 | 2 | | | | | | | F Fontang | 6$^5$ | 6$^4$ | | | | | |
| | R Furlan | 6$^2$ | 6 | 6 | | | | | | 2 | E Sánchez | 7$^7$ | 7$^7$ | | | | | |
| | T Muster | 7$^7$ | 3 | 4 | | R Furlan | 1 | 3 | | | | | | | | | | |
| Q | A Võsand | 3 | 6 | 1 | 2 | E Sánchez | 6 | 6 | | | | | | | | | | |
| 2 | E Sánchez | 6 | 2 | 6 | | | | | | | | | | | | | | |