# 2005 BCR Open Romania – Singles

José Acasuso was the defending champion, but lost in the second round to Rubén Ramírez Hidalgo.
Florent Serra won the title by defeating Igor Andreev 6–3, 6–4 in the final.

## Seeds

* Mariano Puerta (quarterfinals)
* Filippo Volandri (second round)
* Andrei Pavel (semifinals)
* Victor Hănescu (semifinals)
* Gaël Monfils (first round)
* José Acasuso (second round)
* Paul-Henri Mathieu (quarterfinals)
* Fernando Verdasco (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 |
| | Igor Andreev | 4 | 7$^7$ | 6 | | | |
| 4 | Victor Hănescu | 6 | 6$^2$ | 3 | | | |
| 4 | Victor Hănescu | 6 | 6$^2$ | 3 | Igor Andreev | 3 | 4 |
| | | | | | Florent Serra | 6 | 6 |
| 3/WC | Andrei Pavel | 7$^7$ | 2 | 3 | Florent Serra | 6 | 6 |
| | Florent Serra | 6$^5$ | 6 | 6 | | | |

### Top 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 | Semifinals | Semifinals |
| 1/WC | M Puerta | 7 | 6 | | | | | | | | | | | | | | | |
| | J Tipsarević | 5 | 2 | | 1/WC | M Puerta | 6 | 6 | | | | | | | | | | |
| | L Horna | 3 | 6 | 2 | | G García López | 2 | 4 | | | | | | | | | | |
| | G García López | 6 | 3 | 6 | | | | | 1/WC | M Puerta | 6 | 1 | 1 | | | | | |
| | A Waske | 4 | 6$^4$ | | | | | | | I Andreev | 4 | 6 | 6 | | | | | |
| | I Andreev | 6 | 7$^7$ | | | I Andreev | 6 | 6 | | | | | | | | | | |
| | A Montañés | 3 | 6 | 6 | | A Montañés | 2 | 2 | | | | | | | | | | |
| 5 | G Monfils | 6 | 1 | 4 | | | | | | | | | | | I Andreev | 4 | 7$^7$ | 6 |
| 4 | V Hănescu | 6 | 6 | | | | | | | | | | | 4 | V Hănescu | 6 | 6$^2$ | 3 |
| | P Starace | 3 | 2 | | 4 | V Hănescu | 6 | 6 | | | | | | | | | | |
| | D Sanguinetti | 6 | 6 | | | D Sanguinetti | 2 | 3 | | | | | | | | | | |
| | R Sabău | 4 | 3 | | | | | | 4 | V Hănescu | 6 | 6 | | | | | | |
| | N Almagro | 6$^8$ | 1 | | | | | | Q | R Ramírez Hidalgo | 4 | 4 | | | | | | |
| Q | R Ramírez Hidalgo | 7$^{10}$ | 6 | | Q | R Ramírez Hidalgo | 6 | 7 | | | | | | | | | | |
| | JI Chela | 2 | 4 | | 6 | J Acasuso | 4 | 5 | | | | | | | | | | |
| 6 | J Acasuso | 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | F Verdasco | 6 | 6 | | | | | | | | | | | | | | | |
| | M Zabaleta | 2 | 4 | | 8 | F Verdasco | 5 | 6$^7$ | | | | | | | | | | |
| | F Mayer | 6 | 6 | | | F Mayer | 7 | 7$^9$ | | | | | | | | | | |
| | Ó Hernández | 2 | 0 | | | | | | | | F Mayer | 5 | 6$^4$ | | | | | |
| Q | O Marach | 6 | 6 | | | | | | | 3/WC | A Pavel | 7 | 7$^7$ | | | | | |
| Q | M Fyrstenberg | 4 | 4 | | Q | O Marach | 6 | 6$^2$ | 4 | | | | | | | | | |
| | A Martín | 4 | 4 | | 3/WC | A Pavel | 3 | 7$^7$ | 6 | | | | | | | | | |
| 3/WC | A Pavel | 6 | 6 | | | | | | | | | | | 3/WC | A Pavel | 7$^7$ | 2 | 3 |
| 7 | PH Mathieu | 2 | 6 | 6 | | | | | | | | | | | F Serra | 6$^5$ | 6 | 6 |
| | D Sánchez | 6 | 2 | 1 | 7 | PH Mathieu | 6 | 6 | | | | | | | | | | |
| Q | A Portas | 6 | 6 | | Q | A Portas | 2 | 0 | | | | | | | | | | |
| | C Rochus | 4 | 1 | | | | | | | 7 | PH Mathieu | 3 | 1 | | | | | |
| | F Serra | 3 | 7$^7$ | 6 | | | | | | | F Serra | 6 | 6 | | | | | |
| WC | V Crivoi | 6 | 6$^5$ | 1 | | F Serra | 1 | 6 | 6 | | | | | | | | | |
| | T Behrend | 2 | 4 | | 2 | F Volandri | 6 | 4 | 3 | | | | | | | | | |
| 2 | F Volandri | 6 | 6 | | | | | | | | | | | | | | | |