# 2011 Franken Challenge – Singles

Robin Haase was the defending champion but decided not to participate. João Sousa defeated Jan-Lennard Struff 6–2, 0–6, 6–2 in the final to claim his first Challenger title.

## Seeds

* Tobias Kamke (quarterfinals)
* Julian Reister (first round)
* Florent Serra (first round)
* Daniel Brands (first round)
* Denis Gremelmayr (semifinals)
* Simon Greul (quarterfinals)
* Jerzy Janowicz (quarterfinals)
* Uladzimir Ignatik (second 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 | Final | Final | Final | Final | Final |
| | João Sousa | 7 | 6 | | | | | |
| | Nikola Ćirić | 6$^5$ | 4 | | | | | |
| | Nikola Ćirić | 6$^5$ | 4 | | João Sousa | 6 | 0 | 6 |
| | | | | WC | Jan-Lennard Struff | 2 | 6 | 2 |
| WC | Jan-Lennard Struff | 6 | 6 | WC | Jan-Lennard Struff | 2 | 6 | 2 |
| 5 | Denis Gremelmayr | 1 | 3 | | | | | |

### 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 |
| 1 | T Kamke | 4 | 7 | 6 | | | | | | | | | | | | | |
| | J Aguilar | 6 | 6$^5$ | 3 | 1 | T Kamke | 6 | 6 | | | | | | | | | |
| | D Meffert | 6 | 6$^1$ | 4 | Q | A Flock | 4 | 3 | | | | | | | | | |
| Q | Alexander Flock | 3 | 7 | 6 | | | | | | 1 | T Kamke | 6 | 3 | 3 | | | |
| | G Burquier | 2 | 2 | | | | | | | | J Sousa | 2 | 6 | 6 | | | |
| | J Sousa | 6 | 6 | | | J Sousa | 3 | 7 | 7 | | | | | | | | |
| WC | Jean Zietsman | 1 | 2 | | 8 | U Ignatik | 6 | 5 | 5 | | | | | | | | |
| 8 | U Ignatik | 6 | 6 | | | | | | | | | | | | J Sousa | 7 | 6 |
| 4 | D Brands | 3 | 6$^6$ | | | | | | | | | | | | N Ćirić | 6$^5$ | 4 |
| | N Ćirić | 6 | 7 | | | N Ćirić | 7 | 7 | | | | | | | | | |
| | B Knittel | 2 | 3 | | | P Luczak | 5 | 6$^2$ | | | | | | | | | |
| | P Luczak | 6 | 6 | | | | | | | | N Ćirić | 7 | 5 | 7 | | | |
| WC | K Krawietz | 6 | 6 | | | | | | | 7 | J Janowicz | 5 | 7 | 5 | | | |
| WC | M Zimmermann | 3 | 2 | | WC | K Krawietz | 6$^2$ | 3 | | | | | | | | | |
| Q | P Gojowczyk | 3 | 6$^2$ | | 7 | J Janowicz | 7 | 6 | | | | | | | | | |
| 7 | J Janowicz | 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 |
| 6 | S Greul | 6 | 1 | 6 | | | | | | | | | | | | | |
| | V Crivoi | 4 | 6 | 3 | 6 | S Greul | 5 | 6 | 7 | | | | | | | | |
| | I Sijsling | 6 | 2 | 2 | | L Mayer | 7 | 3 | 6$^5$ | | | | | | | | |
| | L Mayer | 2 | 6 | 6 | | | | | | 6 | S Greul | 4 | 1 | | | | |
| | C-M Stebe | 6 | 6 | | | | | | | WC | J-L Struff | 6 | 6 | | | | |
| Q | D Kindlmann | 3 | 2 | | | C-M Stebe | 7 | 3 | 3 | | | | | | | | |
| WC | Jan-Lennard Struff | 6 | 6$^5$ | 6 | WC | J-L Struff | 6$^1$ | 6 | 6 | | | | | | | | |
| 3 | F Serra | 2 | 7 | 1 | | | | | | | | | | WC | J-L Struff | 6 | 6 |
| 5 | D Gremelmayr | 7 | 7 | | | | | | | | | | | 5 | D Gremelmayr | 1 | 3 |
| | R Bautista-Agut | 5 | 5 | | 5 | D Gremelmayr | 6 | 6 | | | | | | | | | |
| | R Farah | 2 | 6 | 6 | | R Farah | 0 | 1 | | | | | | | | | |
| | G Alcaide | 6 | 4 | 1 | | | | | | 5 | D Gremelmayr | 6 | 7 | | | | |
| | S Rieschick | 3 | 3 | | | | | | | Q | R Jouan | 4 | 6$^3$ | | | | |
| | M Copil | 6 | 6 | | | M Copil | 3 | 3 | | | | | | | | | |
| Q | R Jouan | 6 | 6 | | Q | R Jouan | 6 | 6 | | | | | | | | | |
| 2 | J Reister | 2 | 3 | | | | | | | | | | | | | | |