# 2011 Intersport Heilbronn Open – Singles

Michael Berrer was the defending champion; however, he lost to 6th seed Daniel Brands in the quarterfinals. Bastian Knittel defeated Brands in the final, 7–6(4), 7–6(5).

## Seeds

* Andrey Golubev (first round)
* Michael Berrer (quarterfinals)
* Tobias Kamke (second round)
* Rainer Schüttler (first round)
* Marsel İlhan (first round)
* Daniel Brands (final)
* Julian Reister (withdrew)
* Marco Chiudinelli (first round)
* Denis Gremelmayr (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 |
| | Bastian Knittel | 4 | 6 | 7 | | | | |
| | Ilija Bozoljac | 6 | 3 | 6$^4$ | | | | |
| | Ilija Bozoljac | 6 | 3 | 6$^4$ | | Bastian Knittel | 7 | 7 |
| | | | | | 6/WC | Daniel Brands | 6$^4$ | 6$^5$ |
| | Jesse Huta Galung | 6$^1$ | 5 | | 6/WC | Daniel Brands | 6$^4$ | 6$^5$ |
| 6/WC | Daniel Brands | 7 | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 1/WC | A Golubev | 4 | 2 | | | | | | | | | | | | | |
| | B Knittel | 6 | 6 | | | B Knittel | 6 | 6 | | | | | | | | |
| | A Beck | 7 | 6 | | | A Beck | 2 | 2 | | | | | | | | |
| | K Kravchuk | 6$^4$ | 4 | | | | | | | B Knittel | 6 | 6 | | | | |
| | R Bemelmans | 7 | 6$^5$ | 6 | | | | | | D Meffert | 1 | 2 | | | | |
| LL | D Kindlmann | 5 | 7 | 2 | | R Bemelmans | 5 | 1 | | | | | | | | |
| | D Meffert | 7 | 6 | | | D Meffert | 7 | 6 | | | | | | | | |
| 5 | M İlhan | 6$^5$ | 4 | | | | | | | | | | B Knittel | 4 | 6 | 7 |
| 3/WC | T Kamke | 6 | 7 | | | | | | | | | | I Bozoljac | 6 | 3 | 6$^4$ |
| Q | A Sidorenko | 2 | 5 | | 3/WC | T Kamke | 4 | 6 | 3 | | | | | | | |
| | I Bozoljac | 2 | 7 | 6 | | I Bozoljac | 6 | 3 | 6 | | | | | | | |
| | S Bohli | 6 | 6$^4$ | 3 | | | | | | I Bozoljac | 7 | 6 | | | | |
| | A Balázs | 6$^5$ | 3 | | | | | | | C Niland | 6$^8$ | 2 | | | | |
| | M Kližan | 7 | 6 | | | M Kližan | 4 | 6 | 6$^3$ | | | | | | | |
| | C Niland | 7 | 6 | | | C Niland | 6 | 2 | 7 | | | | | | | |
| 8 | M Chiudinelli | 5 | 2 | | | | | | | | | | | | | |

### 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 |
| 9 | D Gremelmayr | 1 | 0 | | | | | | | | | | | | | | | |
| | M Bachinger | 6 | 6 | | | M Bachinger | 6 | 6 | | | | | | | | | | |
| | E Korolev | 3 | 3 | | | A Bogomolov Jr. | 1 | 4 | | | | | | | | | | |
| | A Bogomolov Jr. | 6 | 6 | | | | | | | | M Bachinger | 6 | 4 | 2 | | | | |
| | S Greul | 2 | 2 | | | | | | | | J Huta Galung | 3 | 6 | 6 | | | | |
| | J Huta Galung | 6 | 6 | | | J Huta Galung | 4 | 7 | 7 | | | | | | | | | |
| Q | M Ryderstedt | 6 | 7 | | Q | M Ryderstedt | 6 | 6$^7$ | 5 | | | | | | | | | |
| 4 | R Schüttler | 3 | 5 | | | | | | | | | | | | | J Huta Galung | 6$^1$ | 5 |
| 6/WC | D Brands | 6 | 6 | | | | | | | | | | | | 6/WC | D Brands | 7 | 7 |
| Q | G Burquier | 4 | 4 | | 6/WC | D Brands | 6 | 6 | | | | | | | | | | |
| | M Fischer | 3 | 6 | 3 | WC | P Gojowczyk | 3 | 2 | | | | | | | | | | |
| WC | P Gojowczyk | 6 | 2 | 6 | | | | | | 6/WC | D Brands | 6 | 7 | | | | | |
| | I Sijsling | 4 | 3 | | | | | | | 2 | M Berrer | 3 | 6$^6$ | | | | | |
| | J Janowicz | 6 | 6 | | | J Janowicz | 3 | 6$^5$ | | | | | | | | | | |
| Q | Y Mertens | 2 | 1 | | 2 | M Berrer | 6 | 7 | | | | | | | | | | |
| 2 | M Berrer | 6 | 6 | | | | | | | | | | | | | | | |