# 2006 Brasil Open – Singles

Rafael Nadal was the defending champion, but chose not to participate that year.
Nicolás Massú won in the final 6–3, 6–4, against Alberto Martín.

## Seeds

* Gastón Gaudio (second round)
* Juan Carlos Ferrero (first round)
* Filippo Volandri (second round)
* Florent Serra (second round)
* Juan Ignacio Chela (quarterfinals)
* Nicolás Massú (champion)
* Alberto Martín (final)
* 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 |
| Q | Olivier Patience | 2 | 7 | 6$^3$ | | | | |
| 7 | Alberto Martín | 6 | 5 | 7$^7$ | | | | |
| 7 | Alberto Martín | 6 | 5 | 7$^7$ | 7 | Alberto Martín | 3 | 4 |
| | | | | | 6 | Nicolás Massú | 6 | 6 |
| | Juan Mónaco | 6 | 2 | 5 | 6 | Nicolás Massú | 6 | 6 |
| 6 | Nicolás Massú | 2 | 6 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | G Gaudio | 6 | 3 | 6 | | | | | | | | | | | | | | | |
| LL | A Portas | 3 | 6 | 3 | 1 | G Gaudio | 2 | 2 | | | | | | | | | | | |
| Q | O Patience | 7$^7$ | 6 | | Q | O Patience | 6 | 6 | | | | | | | | | | | |
| | R Sabău | 6$^5$ | 3 | | | | | | | Q | O Patience | 4 | 6 | 6 | | | | | |
| | JA Marín | 6$^9$ | 6 | 0 | | | | | | 8 | B Pašanski | 6 | 3 | 2 | | | | | |
| WC | R Mello | 7$^{11}$ | 3 | 6 | WC | R Mello | 2 | 3 | | | | | | | | | | | |
| | T Behrend | 3 | 6 | 3 | 8 | B Pašanski | 6 | 6 | | | | | | | | | | | |
| 8 | B Pašanski | 6 | 1 | 6 | | | | | | | | | | | Q | O Patience | 2 | 7 | 6$^3$ |
| 3 | F Volandri | 3 | 6 | 6 | | | | | | | | | | | 7 | A Martín | 6 | 5 | 7$^7$ |
| | K Kim | 6 | 3 | 0 | 3 | F Volandri | 0 | 1 | | | | | | | | | | | |
| | J Vaněk | 7$^8$ | 6 | | | J Vaněk | 6 | 6 | | | | | | | | | | | |
| | A Montañés | 6$^6$ | 1 | | | | | | | | J Vaněk | 6$^5$ | 3 | | | | | | |
| WC | A Ghem | 3 | 6 | 6 | | | | | | 7 | A Martín | 7$^7$ | 6 | | | | | | |
| PR | G Kuerten | 6 | 3 | 4 | WC | A Ghem | 2 | 6 | 3 | | | | | | | | | | |
| | L Horna | 4 | 5 | | 7 | A Martín | 6 | 3 | 6 | | | | | | | | | | |
| 7 | A Martín | 6 | 7 | | | | | | | | | | | | | | | | |

### 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 |
| 5 | JI Chela | 7$^7$ | 6 | | | | | | | | | | | | | | | |
| Q | D Gimeno Traver | 6$^3$ | 3 | | 5 | JI Chela | 6 | 7 | | | | | | | | | | |
| LL | I Navarro Pastor | 3 | 6 | 3 | | P Starace | 4 | 5 | | | | | | | | | | |
| | P Starace | 6 | 3 | 6 | | | | | | 5 | JI Chela | 3 | 2 | | | | | |
| | J Mónaco | 7 | 7 | | | | | | | | J Mónaco | 6 | 6 | | | | | |
| Q | JM del Potro | 5 | 5 | | | J Mónaco | 6 | 6 | | | | | | | | | | |
| | L Dlouhý | 6 | 2 | 2 | 4 | F Serra | 1 | 1 | | | | | | | | | | |
| 4 | F Serra | 3 | 6 | 6 | | | | | | | | | | | J Mónaco | 6 | 2 | 5 |
| 6 | N Massú | 7$^7$ | 6 | | | | | | | | | | | 6 | N Massú | 2 | 6 | 7 |
| | M Daniel | 6$^3$ | 1 | | 6 | N Massú | 3 | 7$^8$ | 6 | | | | | | | | | |
| | F Vicente | 6 | 2 | | | F Vicente | 6 | 6$^6$ | 3 | | | | | | | | | |
| | C Berlocq | 4 | 0 | r | | | | | | 6 | N Massú | 7$^7$ | 6 | | | | | |
| Q | N Almagro | 6 | 7$^7$ | | | | | | | Q | N Almagro | 6$^4$ | 3 | | | | | |
| WC | A Sá | 1 | 6$^3$ | | Q | N Almagro | 7 | 7 | | | | | | | | | | |
| | F Saretta | 6 | 6 | | | F Saretta | 5 | 5 | | | | | | | | | | |
| 2 | JC Ferrero | 4 | 3 | | | | | | | | | | | | | | | |