# 2001 Croatian Bol Ladies Open – Singles

Tina Pisnik was the defending champion but lost in the quarterfinals to Ángeles Montolio.
Montolio won in the final 3–6, 6–2, 6–4 against Mariana Díaz Oliva.

## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. The top two seeds received a bye to the second round.
* Kim Clijsters (finals)
* Sandrine Testud (semifinals)
* Ángeles Montolio (champion)
* Silvija Talaja (first round)
* Marlene Weingärtner (quarterfinals)
* Meilen Tu (second round)
* Ai Sugiyama (second round)
* Nathalie Dechy (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

### Final

| Final | Final | Final | Final | Final |
| | Mariana Díaz Oliva | 6 | 2 | 4 |
| 3 | Ángeles Montolio | 3 | 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | 1 | K Clijsters | 6 | 6 | | | | | | | | | | |
| | É Loit | 6 | 3 | 4 | | É Loit | 1 | 3 | | | | | | | | | | |
| | C Torrens Valero | 4 | 6 | 3/r | | | | | | 1 | K Clijsters | 7$^7$ | 6 | | | | | |
| | P Nola | 4 | 6 | 6 | | | | | | | P Nola | 6$^4$ | 1 | | | | | |
| Q | N Ostrovskaya | 6 | 2 | 3 | | P Nola | 6 | 6 | | | | | | | | | | |
| Q | N Viérin | 6 | 6$^7$ | 2 | 8 | N Dechy | 4 | 2 | | | | | | | | | | |
| 8 | N Dechy | 1 | 7$^9$ | 6 | | | | | | | | | | 1 | K Clijsters | 6 | 2 | 3 |
| 4 | S Talaja | 4 | r | | | | | | | | | | | | M Díaz Oliva | 0 | 6 | 6 |
| WC | J Kostanić | 6 | | | WC | J Kostanić | 4 | 2 | | | | | | | | | | |
| | M Díaz Oliva | 4 | 6 | 6 | | M Díaz Oliva | 6 | 6 | | | | | | | | | | |
| | D Buth | 6 | 1 | 3 | | | | | | | M Díaz Oliva | 6 | 6 | | | | | |
| | A Medina Garrigues | 6 | 6$^3$ | 4 | | | | | | | A Smashnova | 1 | 1 | | | | | |
| | A Smashnova | 2 | 7$^7$ | 6 | | A Smashnova | 4 | 6 | 6 | | | | | | | | | |
| | J Kruger | 3 | 4 | | 6 | M Tu | 6 | 3 | 1 | | | | | | | | | |
| 6 | M Tu | 6 | 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 |
| 7 | A Sugiyama | 6 | 0 | 6 | | | | | | | | | | | | | | |
| | C Morariu | 2 | 6 | 3 | 7 | A Sugiyama | 5 | 1 | | | | | | | | | | |
| | T Pisnik | 6 | 6 | | | T Pisnik | 7 | 6 | | | | | | | | | | |
| | T Poutchek | 2 | 3 | | | | | | | | T Pisnik | 6 | 6$^4$ | 1 | | | | |
| | M Marrero | 6 | 4 | 6 | | | | | | 3 | Á Montolio | 4 | 7$^7$ | 6 | | | | |
| Q | J Vakulenko | 4 | 6 | 1 | | M Marrero | 6 | 3 | 1 | | | | | | | | | |
| | N Petrova | 6 | 3 | 1 | 3 | Á Montolio | 0 | 6 | 6 | | | | | | | | | |
| 3 | Á Montolio | 0 | 6 | 6 | | | | | | | | | | | 3 | Á Montolio | 6 | 7 |
| 5 | M Weingärtner | 6 | 7 | | | | | | | | | | | | 2 | S Testud | 1 | 5 |
| Q | Z Ondrášková | 3 | 5 | | 5 | M Weingärtner | 6 | 7 | | | | | | | | | | |
| WC | J Hewitt | 5 | 5 | | | M J Martínez | 3 | 5 | | | | | | | | | | |
| | M J Martínez | 7 | 7 | | | | | | | 5 | M Weingärtner | 6 | 1 | 2 | | | | |
| | R Kuti-Kis | 6 | 4 | 6 | | | | | | 2 | S Testud | 4 | 6 | 6 | | | | |
| | V Razzano | 2 | 6 | 3 | | R Kuti-Kis | 2 | 3 | | | | | | | | | | |
| | | | | | 2 | S Testud | 6 | 6 | | | | | | | | | | |