# 2015 Sparkassen Open – Singles

Alexander Zverev was the defending champion, but he lost in the second round to Daniel Brands.

## Seeds

* Pablo Carreño Busta (quarterfinals)
* Marcel Granollers (first round)
* Alexander Zverev (second round)
* João Souza (second round)
* Damir Džumhur (second round)
* Radu Albot (first round)
* Daniel Muñoz de la Nava (second round)
* Matthias Bachinger (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 | Final | Final | Final |
| Filip Krajinović | 7 | 6 | | | |
| Taro Daniel | 5 | 2 | | | |
| Taro Daniel | 5 | 2 | Filip Krajinović | 6 | 6 |
| | | | Paul-Henri Mathieu | 2 | 4 |
| Thiemo de Bakker | 3 | 3 | Paul-Henri Mathieu | 2 | 4 |
| Paul-Henri Mathieu | 6 | 6 | | | |

### 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 | P Carreño Busta | 2 | 6 | 6 | | | | | | | | | | | | | |
| WC | F Mayer | 6 | 2 | 4 | 1 | P Carreño Busta | 6 | 1 | 6 | | | | | | | | |
| | F Dustov | 1 | 0 | | Q | R Dutra Silva | 3 | 6 | 4 | | | | | | | | |
| Q | R Dutra Silva | 6 | 6 | | | | | | | 1 | P Carreño Busta | 5 | 6 | 3 | | | |
| | F Krajinović | 2 | 6 | 6 | | | | | | | F Krajinović | 7 | 4 | 6 | | | |
| PR | P Riba | 6 | 3 | 4 | | F Krajinović | 6 | 6 | | | | | | | | | |
| WC | M Zverev | 3 | 6 | 5 | 7 | D Muñoz de la Nava | 4 | 0 | | | | | | | | | |
| 7 | D Muñoz de la Nava | 6 | 3 | 7 | | | | | | | | | | | F Krajinović | 7 | 6 |
| 3 | A Zverev | 6 | 1 | 6 | | | | | | | | | | | T Daniel | 5 | 2 |
| Q | D Kuzmanov | 0 | 6 | 3 | 3 | A Zverev | 7$^7$ | 3 | 3 | | | | | | | | |
| WC | D Brands | 6 | 6 | | WC | D Brands | 6$^5$ | 6 | 6 | | | | | | | | |
| | N Gombos | 2 | 4 | | | | | | | WC | D Brands | 4 | 6$^4$ | | | | |
| | T Daniel | 6 | 6 | | | | | | | | T Daniel | 6 | 7$^7$ | | | | |
| | T Kamke | 1 | 4 | | | T Daniel | 6 | 3 | 6 | | | | | | | | |
| Alt | G Elias | 4 | 6$^2$ | | 5 | D Džumhur | 4 | 6 | 3 | | | | | | | | |
| 5 | D Džumhur | 6 | 7$^7$ | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 6 | R Albot | 4 | 7 | 6$^0$ | | | | | | | | | | | | |
| | J-L Struff | 6 | 5 | 7$^7$ | | J-L Struff | 3 | 3 | | | | | | | | |
| | T de Bakker | 6 | 6 | | | T de Bakker | 6 | 6 | | | | | | | | |
| Q | J Kubler | 4 | 2 | | | | | | | T de Bakker | 3 | 6 | 6 | | | |
| | H Zeballos | 6 | 6 | | | | | | | H Zeballos | 6 | 3 | 4 | | | |
| WC | M Marterer | 3 | 4 | | | H Zeballos | 6 | 7$^7$ | | | | | | | | |
| | A Kudryavtsev | 2 | 5 | | 4 | J Souza | 3 | 6$^1$ | | | | | | | | |
| 4 | J Souza | 6 | 7 | | | | | | | | | | | T de Bakker | 3 | 3 |
| 8 | M Bachinger | 6 | 6 | | | | | | | | | | | P-H Mathieu | 6 | 6 |
| Q | K Khachanov | 4 | 4 | | 8 | M Bachinger | 4 | 5 | | | | | | | | |
| | E Ymer | 4 | 6 | 4 | SE | N Langer | 6 | 7 | | | | | | | | |
| SE | N Langer | 6 | 2 | 6 | | | | | SE | N Langer | | | | | | |
| | F Argüello | 1 | 1 | | | | | | | P-H Mathieu | w/o | | | | | |
| | P-H Mathieu | 6 | 6 | | | P-H Mathieu | 6 | 6 | | | | | | | | |
| | A Ghem | 6 | 6 | | | A Ghem | 3 | 2 | | | | | | | | |
| 2 | M Granollers | 4 | 2 | | | | | | | | | | | | | |