# 1999 Croatia Open – Singles

Bohdan Ulihrach was the defending champion, but lost in the first round to Juan Antonio Marín.
Magnus Norman won the title by defeating Jeff Tarango 6–2, 6–4 in the final.

## Seeds

* Carlos Moyá (quarterfinals)
* Félix Mantilla (second round)
* Dominik Hrbatý (quarterfinals)
* Francisco Clavet (quarterfinals)
* Mariano Zabaleta (first round)
* Bohdan Ulihrach (first round)
* Mariano Puerta (first round)
* Magnus Norman (champion)

## 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 |
| 8 | Magnus Norman | 6 | 6 | | | | |
| WC | Ivan Ljubičić | 0 | 2 | | | | |
| WC | Ivan Ljubičić | 0 | 2 | 8 | Magnus Norman | 6 | 6 |
| | | | | | Jeff Tarango | 2 | 4 |
| | Jeff Tarango | 7$^{10}$ | 6 | | Jeff Tarango | 2 | 4 |
| | Albert Portas | 6$^8$ | 0 | | | | |

### 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 | Semifinals |
| 1 | C Moyá | 6 | 1 | 7 | | | | | | | | | | | | | | |
| | D Sanguinetti | 4 | 6 | 5 | 1 | C Moyá | 6 | 6 | | | | | | | | | | |
| | V Liukko | 6 | 2 | 6 | | V Liukko | 4 | 4 | | | | | | | | | | |
| Q | I Beroš | 3 | 6 | 2 | | | | | | 1 | C Moyá | 2 | 6$^8$ | | | | | |
| | K Alami | 1 | 6$^3$ | | | | | | | 8 | M Norman | 6 | 7$^{10}$ | | | | | |
| | G Cañas | 6 | 7$^7$ | | | G Cañas | 4 | 3 | | | | | | | | | | |
| | G Puentes | 3 | 1 | | 8 | M Norman | 6 | 6 | | | | | | | | | | |
| 8 | M Norman | 6 | 6 | | | | | | | | | | | | 8 | M Norman | 6 | 6 |
| 3 | D Hrbatý | 7 | 7 | | | | | | | | | | | | WC | I Ljubičić | 0 | 2 |
| WC | L Zovko | 5 | 5 | | 3 | D Hrbatý | 6 | 6 | | | | | | | | | | |
| WC | S Bruguera | 6$^4$ | 0 | | | R Schüttler | 4 | 3 | | | | | | | | | | |
| | R Schüttler | 7$^7$ | 6 | | | | | | | 3 | D Hrbatý | 0 | 7$^7$ | 4 | | | | |
| | A Di Pasquale | 2 | 1 | | | | | | | WC | I Ljubičić | 6 | 6$^4$ | 6 | | | | |
| | C Ruud | 6 | 6 | | | C Ruud | 3 | 6 | 5 | | | | | | | | | |
| WC | I Ljubičić | 7$^7$ | 7 | | WC | I Ljubičić | 6 | 3 | 7 | | | | | | | | | |
| 5 | M Zabaleta | 6$^4$ | 5 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 6 | B Ulihrach | 6 | 4 | 2 | | | | | | | | | | | | |
| | JA Marín | 3 | 6 | 6 | | JA Marín | 6$^3$ | 3 | | | | | | | | |
| | T Zíb | 6 | 4 | 0 | | J Tarango | 7$^7$ | 6 | | | | | | | | |
| | J Tarango | 3 | 6 | 6 | | | | | | J Tarango | 7 | 5 | 6 | | | |
| Q | R Carretero | 6 | 6 | | | | | | 4 | F Clavet | 5 | 7 | 2 | | | |
| Q | J Landsberg | 2 | 3 | | Q | R Carretero | 4 | 6$^6$ | | | | | | | | |
| | O Gross | 6$^1$ | 2 | | 4 | F Clavet | 6 | 7$^8$ | | | | | | | | |
| 4 | F Clavet | 7$^7$ | 6 | | | | | | | | | | | J Tarango | 7$^{10}$ | 6 |
| 7 | M Puerta | 7$^8$ | 2 | 3 | | | | | | | | | | A Portas | 6$^8$ | 0 |
| | A Calleri | 6$^6$ | 6 | 6 | | A Calleri | 6 | 6 | | | | | | | | |
| Q | B Urh | 7 | 3 | 7$^7$ | Q | B Urh | 0 | 1 | | | | | | | | |
| | V Santopadre | 5 | 6 | 6$^2$ | | | | | | A Calleri | 5 | 6 | 4 | | | |
| | A Berasategui | 4 | 0 | | | | | | | A Portas | 7 | 2 | 6 | | | |
| | A Portas | 6 | 6 | | | A Portas | 6 | 6 | | | | | | | | |
| | J Díaz | 6 | 1 | 0 | 2 | F Mantilla | 4 | 4 | | | | | | | | |
| 2 | F Mantilla | 4 | 6 | 6 | | | | | | | | | | | | |