# 2009 Interwetten Austrian Open Kitzbühel – Singles

Juan Martín del Potro was the defending champion, but chose not to participate that year.

## Seeds

* Nikolay Davydenko (withdrew)
* Jürgen Melzer (quarterfinals)
* Victor Hănescu (quarterfinals)
* Fabrice Santoro (first round)
* Martín Vassallo Argüello (second round)
* Marc Gicquel (first round)
* Mikhail Youzhny (semifinals)
* Dudi Sela (first 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 | Final | Final |
| LL | Julien Benneteau | 6 | 6 | | | | | | |
| | Óscar Hernández | 3 | 4 | | | | | | |
| | Óscar Hernández | 3 | 4 | | LL | Julien Benneteau | 6 | 6$^1$ | 3 |
| | | | | | | Guillermo García-López | 3 | 7 | 6 |
| | Guillermo García-López | 6 | 1 | 7 | | Guillermo García-López | 3 | 7 | 6 |
| 7 | Mikhail Youzhny | 3 | 6 | 6$^5$ | | | | | |

### 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 |
| LL | P Capdeville | 3 | 2 | | | | | | | | | | | | | | | |
| | D Junqueira | 6 | 6 | | | D Junqueira | 1 | 2 | | | | | | | | | | |
| | T Bellucci | 4 | 4 | | WC | D Köllerer | 6 | 6 | | | | | | | | | | |
| WC | D Köllerer | 6 | 6 | | | | | | | WC | D Köllerer | 2 | 7 | 0 | | | | |
| | N Massú | 6 | 6 | | | | | | | LL | J Benneteau | 6 | 6$^5$ | 6 | | | | |
| Q | R Vik | 4 | 2 | | | N Massú | 1 | 7 | 6$^7$ | | | | | | | | | |
| LL | J Benneteau | 7 | 6 | | LL | J Benneteau | 6 | 6$^4$ | 7 | | | | | | | | | |
| 8 | D Sela | 5 | 1 | | | | | | | | | | | | LL | J Benneteau | 6 | 6 |
| 4 | F Santoro | 2 | 3 | | | | | | | | | | | | | Ó Hernández | 3 | 4 |
| | Ó Hernández | 6 | 6 | | | Ó Hernández | 7 | 6 | | | | | | | | | | |
| | J Hernych | 7 | 3 | 5 | WC | A Beck | 5 | 4 | | | | | | | | | | |
| WC | A Beck | 5 | 6 | 7 | | | | | | | Ó Hernández | 6 | 6 | | | | | |
| LL | R Ramírez Hidalgo | 6 | 6 | | | | | | | Q | JI Chela | 4 | 4 | | | | | |
| Q | M Ančić | 4 | 3 | | LL | R Ramírez Hidalgo | 3 | 2 | | | | | | | | | | |
| Q | JI Chela | 5 | 6 | 6 | Q | JI Chela | 6 | 6 | | | | | | | | | | |
| 6 | M Gicquel | 7 | 3 | 0 | | | | | | | | | | | | | | |

### 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 | M Vassallo Argüello | 6 | 6 | | | | | | | | | | | | | | | |
| | C Rochus | 2 | 4 | | 5 | M Vassallo Argüello | 6 | 4 | 3 | | | | | | | | | |
| | B Phau | 3 | 2 | | | G García-López | 4 | 6 | 6 | | | | | | | | | |
| | G García-López | 6 | 6 | | | | | | | | G García-López | 6 | 6 | | | | | |
| | M Granollers | 7 | 6 | | | | | | | 3 | V Hănescu | 2 | 2 | | | | | |
| | T Gabashvili | 6$^{11}$ | 3 | | | M Granollers | 1 | 6$^2$ | | | | | | | | | | |
| Q | N Lapentti | 7 | 3 | 5 | 3 | V Hănescu | 6 | 7 | | | | | | | | | | |
| 3 | V Hănescu | 6$^6$ | 6 | 7 | | | | | | | | | | | G García-López | 6 | 1 | 7 |
| 7 | M Youzhny | 6 | 7 | | | | | | | | | | | 7 | M Youzhny | 3 | 6 | 6$^5$ |
| | D Gimeno-Traver | 2 | 6$^7$ | | 7 | M Youzhny | 6 | 6 | | | | | | | | | | |
| WC | S Koubek | 7 | 6 | | WC | S Koubek | 2 | 4 | | | | | | | | | | |
| | P Petzschner | 6$^8$ | 4 | | | | | | | 7 | M Youzhny | 6 | 6 | | | | | |
| | Y-H Lu | 6 | 5 | 1$^r$ | | | | | | 2 | J Melzer | 4 | 4 | | | | | |
| | A Calleri | 3 | 7 | 0 | | A Calleri | 4 | 5 | | | | | | | | | | |
| | F Gil | 3 | 0 | | 2 | J Melzer | 6 | 7 | | | | | | | | | | |
| 2 | J Melzer | 6 | 6 | | | | | | | | | | | | | | | |