# 2006 Movistar Open – Singles

Gastón Gaudio was the defending champion, but lost in the second round this year.
José Acasuso won the title, defeating Nicolás Massú 6–4, 6–3 in the final.
This was the first ATP tournament in which future Grand Slam champion Juan Martín del Potro entered.

## Seeds

* Gastón Gaudio (second round)
* Fernando González (semifinals)
* José Acasuso (champion)
* Agustín Calleri (first round)
* Nicolás Massú (final)
* Albert Montañés (quarterfinals)
* Carlos Berlocq (first round)
* Boris Pašanski (quarterfinals)

## 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 |
| | Rubén Ramírez Hidalgo | 2 | 4 | | | | | |
| 3 | José Acasuso | 6 | 6 | | | | | |
| 3 | José Acasuso | 6 | 6 | | 3 | José Acasuso | 6 | 6 |
| | | | | | 2 | Nicolás Massú | 4 | 3 |
| 5 | Nicolás Massú | 3 | 7$^7$ | 6 | 2 | Nicolás Massú | 4 | 3 |
| 2 | Fernando González | 6 | 6$^3$ | 4 | | | | |

### 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 | G Gaudio | 6 | 6 | | | | | | | | | | | | | | | |
| WC | F Parada | 1 | 4 | | 1 | G Gaudio | 7$^8$ | 1 | 4 | | | | | | | | | |
| | N Almagro | 6 | 3 | 1 | | R R Hidalgo | 6$^6$ | 6 | 6 | | | | | | | | | |
| | R R Hidalgo | 0 | 6 | 6 | | | | | | | R R Hidalgo | 6 | 2 | 6 | | | | |
| | P Capdeville | 3 | 6 | 3 | | | | | | 6 | Montañés | 2 | 6 | 2 | | | | |
| | S Ventura | 6 | 0 | 6 | | S Ventura | 6 | 4 | 3 | | | | | | | | | |
| | J Mónaco | 4 | 2 | | 6 | Montañés | 4 | 6 | 6 | | | | | | | | | |
| 6 | Montañés | 6 | 6 | | | | | | | | | | | | | R R Hidalgo | 2 | 4 |
| 3 | J Acasuso | 6 | 6 | | | | | | | | | | | | 3 | J Acasuso | 6 | 6 |
| | I Navarro | 3 | 2 | | 3 | J Acasuso | 6 | 6 | | | | | | | | | | |
| Q | G Marcaccio | 7$^8$ | 0 | 6 | Q | G Marcaccio | 1 | 1 | | | | | | | | | | |
| | L Horna | 6$^6$ | 6 | 3 | | | | | | 3 | J Acasuso | 3 | 6 | 7 | | | | |
| WC | J Aguilar | 6 | 6 | | | | | | | Q | L Friedl | 6 | 1 | 5 | | | | |
| WC | G Hormazábal | 4 | 2 | | WC | J Aguilar | 6$^4$ | 3 | | | | | | | | | | |
| Q | L Friedl | 6$^5$ | 6 | 6 | Q | L Friedl | 7$^7$ | 6 | | | | | | | | | | |
| 7 | C Berlocq | 7$^7$ | 3 | 1 | | | | | | | | | | | | | | |

### 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 | Semifinals |
| 5 | N Massú | 6 | 6 | | | | | | | | | | | | | | | | |
| | M Daniel | 3 | 3 | | 5 | N Massú | 6 | 6 | | | | | | | | | | | |
| Q | H Armando | 2 | 3 | | | J A Marín | 3 | 4 | | | | | | | | | | | |
| | J A Marín | 6 | 6 | | | | | | | 5 | N Massú | 4 | 7$^7$ | 6 | | | | | |
| Q | C Cuadrado | 7 | 6 | | | | | | | Q | C Cuadrado | 6 | 6$^4$ | 3 | | | | | |
| | T Behrend | 5 | 0 | | Q | C Cuadrado | 6 | 6 | | | | | | | | | | | |
| LL | D Gimeno Traver | 1 | 6 | 6 | LL | D Gimeno Traver | 3 | 3 | | | | | | | | | | | |
| 4 | A Calleri | 6 | 3 | 3 | | | | | | | | | | | 5 | N Massú | 3 | 7$^7$ | 6 |
| 8 | B Pašanski | 1 | 7 | 6 | | | | | | | | | | | 2 | F González | 6 | 6$^3$ | 4 |
| | F Saretta | 6 | 5 | 3 | 8 | B Pašanski | 6$^2$ | 7$^7$ | 6 | | | | | | | | | | |
| | A di Mauro | 6$^6$ | 6 | 6 | | A di Mauro | 7$^7$ | 6$^4$ | 0 | | | | | | | | | | |
| | A García | 7$^8$ | 1 | 4 | | | | | | 8 | B Pašanski | 4 | 3 | | | | | | |
| | J M del Potro | 6 | 6 | | | | | | | 2 | F González | 6 | 6 | | | | | | |
| | A Portas | 2 | 2 | | | J M del Potro | 3 | 6$^4$ | | | | | | | | | | | |
| | V Mazarakis | 1 | 2 | | 2 | F González | 6 | 7$^7$ | | | | | | | | | | | |
| 2 | F González | 6 | 6 | | | | | | | | | | | | | | | | |