# 2009 MercedesCup – Singles

Juan Martín del Potro was the defending champion, but chose not to participate that year.
Jérémy Chardy won in the final 1–6, 6–3, 6–4 against Victor Hănescu.

## Seeds

* Gilles Simon (second round)
* Nikolay Davydenko (quarterfinals)
* Tomáš Berdych (first round)
* Victor Hănescu (final)
* Philipp Kohlschreiber (second round)
* Albert Montañés (withdrew)
* Fabrice Santoro (first round)
* José Acasuso (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 |
| | Jérémy Chardy | 6 | 7 | | | | | | |
| | Nicolas Kiefer | 3 | 5 | | | | | | |
| | Nicolas Kiefer | 3 | 5 | | | Jérémy Chardy | 1 | 6 | 6 |
| | | | | | 4 | Victor Hănescu | 6 | 3 | 4 |
| 4 | Victor Hănescu | 6 | 6$^4$ | 6 | 4 | Victor Hănescu | 6 | 3 | 4 |
| | Fabio Fognini | 3 | 7 | 2 | | | | | |

### 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 |
| 1 | G Simon | 6 | 6 | | | | | | | | | | | | | |
| | P Petzschner | 3 | 4 | | 1 | G Simon | 3 | 2 | | | | | | | | |
| | M Zverev | 6 | 6 | | | M Zverev | 6 | 6 | | | | | | | | |
| | G García-López | 2 | 4 | | | | | | | | M Zverev | 6$^4$ | 1 | | | |
| | A Golubev | 6 | 3 | 0 | | | | | | | J Chardy | 7 | 6 | | | |
| | M Vassallo Argüello | 3 | 6 | 6 | | M Vassallo Argüello | 6 | 3 | 1 | | | | | | | |
| | J Chardy | 6 | 7 | | | J Chardy | 2 | 6 | 6 | | | | | | | |
| 8 | J Acasuso | 2 | 6$^4$ | | | | | | | | | | | J Chardy | 6 | 7 |
| 3 | T Berdych | 3 | 3 | | | | | | | | | | | N Kiefer | 3 | 5 |
| | N Kiefer | 6 | 6 | | | N Kiefer | 6 | 6 | | | | | | | | |
| | A Beck | 6$^4$ | 6$^5$ | | WC | S Greul | 3 | 4 | | | | | | | | |
| WC | S Greul | 7 | 7 | | | | | | | | N Kiefer | 6 | 6 | | | |
| Q | Ł Kubot | 6 | 6 | | | | | | | Q | Ł Kubot | 2 | 1 | | | |
| Q | P Andújar | 2 | 4 | | Q | Ł Kubot | 6 | 6 | | | | | | | | |
| | D Junqueira | 3 | 2 | | 5 | P Kohlschreiber | 2 | 4 | | | | | | | | |
| 5 | P Kohlschreiber | 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 | Semifinals |
| LL | A Sidorenko | 7 | 1 | 6 | | | | | | | | | | | | | | | |
| Q | D Muñoz-De La Nava | 6$^3$ | 6 | 2 | LL | A Sidorenko | 2 | 6 | 6 | | | | | | | | | | |
| | J Tipsarević | 4 | 4 | | | Ó Hernández | 6 | 4 | 3 | | | | | | | | | | |
| | Ó Hernández | 6 | 6 | | | | | | | LL | A Sidorenko | 6$^2$ | 4 | | | | | | |
| | I Minář | 6 | 6$^2$ | 4 | | | | | | 4 | V Hănescu | 7 | 6 | | | | | | |
| | R Schüttler | 2 | 7 | 6 | | R Schüttler | 2 | 1 | | | | | | | | | | | |
| Q | D Meffert | 4 | 6$^6$ | | 4 | V Hănescu | 6 | 6 | | | | | | | | | | | |
| 4 | V Hănescu | 6 | 7 | | | | | | | | | | | | 4 | V Hănescu | 6 | 6$^4$ | 6 |
| 7 | F Santoro | 7 | 6$^3$ | 1 | | | | | | | | | | | | F Fognini | 3 | 7 | 2 |
| | F Fognini | 5 | 7 | 6 | | F Fognini | 6 | 4 | | | | | | | | | | | |
| | M Youzhny | 6$^4$ | 6$^4$ | | | P-H Mathieu | 4 | 1 | r | | | | | | | | | | |
| | P-H Mathieu | 7 | 7 | | | | | | | | F Fognini | 6 | 3 | 7 | | | | | |
| WC | M Berrer | 0 | 7 | 7 | | | | | | 2 | N Davydenko | 1 | 6 | 5 | | | | | |
| WC | S Koubek | 6 | 6$^3$ | 6$^4$ | WC | M Berrer | 3 | 3 | | | | | | | | | | | |
| | I Navarro | 6 | 5 | 3 | 2 | N Davydenko | 6 | 6 | | | | | | | | | | | |
| 2 | N Davydenko | 4 | 7 | 6 | | | | | | | | | | | | | | | |