# 1999 Estoril Open – Men's singles

Alberto Berasategui was the defending champion, but lost in the first round this year.
Albert Costa won the tournament, beating Todd Martin in the final, 7–6$^{(7–4)}$, 2–6, 6–3.

## Seeds

* Yevgeny Kafelnikov (first round)
* Todd Martin (final)
* Marcelo Ríos (semifinals)
* Albert Costa (champion)
* Gustavo Kuerten (quarterfinals)
* Félix Mantilla (quarterfinals)
* Francisco Clavet (first round)
* Marat Safin (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 | Final | Final | Final | Final | Final |
| | Jérôme Golmard | 4 | 4 | | | | | |
| 4 | Albert Costa | 6 | 6 | | | | | |
| 4 | Albert Costa | 6 | 6 | 4 | Albert Costa | 7$^7$ | 2 | 6 |
| | | | | 2 | Todd Martin | 6$^4$ | 6 | 3 |
| 3 | Marcelo Ríos | 3 | 6$^3$ | 2 | Todd Martin | 6$^4$ | 6 | 3 |
| 2 | Todd Martin | 6 | 7$^7$ | | | | | |

### 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 | Y Kafelnikov | 3 | 6 | 3 | | | | | | | | | | | | | |
| | A Pavel | 6 | 2 | 6 | | A Pavel | 6 | 3 | 2 | | | | | | | | |
| Q | Á López Morón | 4 | 0 | | | K Alami | 3 | 6 | 6 | | | | | | | | |
| | K Alami | 6 | 6 | | | | | | | | K Alami | 4 | 6$^1$ | | | | |
| | F Dewulf | 2 | 1 | | | | | | | | J Golmard | 6 | 7$^7$ | | | | |
| | V Spadea | 6 | 6 | | | V Spadea | 3 | 2 | | | | | | | | | |
| | J Golmard | 7$^7$ | 7$^7$ | | | J Golmard | 6 | 6 | | | | | | | | | |
| 7 | F Clavet | 6$^3$ | 6$^5$ | | | | | | | | | | | | J Golmard | 4 | 4 |
| 4 | A Costa | 6 | 6 | | | | | | | | | | | 4 | A Costa | 6 | 6 |
| | F Squillari | 1 | 3 | | 4 | A Costa | 7$^7$ | 7$^9$ | | | | | | | | | |
| | F Vicente | 1 | 4 | | Q | R Agénor | 6$^5$ | 6$^7$ | | | | | | | | | |
| Q | R Agénor | 6 | 6 | | | | | | | 4 | A Costa | 6 | 6 | | | | |
| WC | C Costa | 6 | 2 | 6$^4$ | | | | | | 6 | F Mantilla | 2 | 4 | | | | |
| | A Medvedev | 1 | 6 | 7$^7$ | | A Medvedev | 3 | 2 | | | | | | | | | |
| | T Muster | 3 | 2 | | 6 | F Mantilla | 6 | 6 | | | | | | | | | |
| 6 | F Mantilla | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | G Kuerten | 6 | 6$^5$ | 6 | | | | | | | | | | | | |
| | JA Marín | 3 | 7$^7$ | 4 | 5 | G Kuerten | 6 | 6 | | | | | | | | |
| | J Novák | 7$^7$ | 6 | | | J Novák | 3 | 4 | | | | | | | | |
| | G Blanco | 6$^1$ | 3 | | | | | | 5 | G Kuerten | 4 | 3 | | | | |
| Q | A Portas | 6 | 6 | | | | | | 3 | M Ríos | 6 | 6 | | | | |
| WC | P Leão | 1 | 1 | | Q | A Portas | 3 | 3 | | | | | | | | |
| | A Voinea | 6 | 4 | 2 | 3 | M Ríos | 6 | 6 | | | | | | | | |
| 3 | M Ríos | 3 | 6 | 6 | | | | | | | | | 3 | M Ríos | 3 | 6$^3$ |
| 8 | M Safin | 6$^6$ | 7 | 3 | | | | | | | | | 2 | T Martin | 6 | 7$^7$ |
| | H Arazi | 7$^8$ | 5 | 6 | | H Arazi | 2 | 2 | | | | | | | | |
| | F Meligeni | 6 | 6 | | | F Meligeni | 6 | 6 | | | | | | | | |
| | A Di Pasquale | 2 | 2 | | | | | | | F Meligeni | 5$^d$ | | | | | |
| WC | N Marques | 6 | 3 | 6 | | | | | 2 | T Martin | 4 | | | | | |
| Q | G Solvès | 2 | 6 | 3 | WC | N Marques | 5 | 3 | | | | | | | | |
| | A Berasategui | 1 | 6$^3$ | | 2 | T Martin | 7 | 6 | | | | | | | | |
| 2 | T Martin | 6 | 7$^7$ | | | | | | | | | | | | | |