# 2017 German Open – Singles

Martin Kližan was the defending champion, but withdrew before the tournament began.
Leonardo Mayer won the title, defeating Florian Mayer in the final, 6–4, 4–6, 6–3.

## Seeds

* Albert Ramos Viñolas (first round)
* Pablo Cuevas (first round)
* Karen Khachanov (quarterfinals)
* Gilles Simon (second round)
* Benoît Paire (second round)
* Diego Schwartzman (quarterfinals)
* Fernando Verdasco (first round)
* David Ferrer (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 |
| LL | Leonardo Mayer | 6 | 7 | | | | | |
| Q | Federico Delbonis | 3 | 5 | | | | | |
| Q | Federico Delbonis | 3 | 5 | LL | Leonardo Mayer | 6 | 4 | 6 |
| | | | | | Florian Mayer | 4 | 6 | 3 |
| | Philipp Kohlschreiber | 6 | 2$^r$ | | Florian Mayer | 4 | 6 | 3 |
| | Florian Mayer | 4 | 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 | Semifinals |
| 1 | A Ramos Viñolas | 7$^7$ | 3 | 6$^4$ | | | | | | | | | | | | | | |
| LL | L Mayer | 6$^3$ | 6 | 7$^7$ | LL | L Mayer | 6 | 7 | | | | | | | | | | |
| | J-L Struff | 6 | 6 | | | J-L Struff | 2 | 5 | | | | | | | | | | |
| | E Donskoy | 3 | 4 | | | | | | | LL | L Mayer | 7$^7$ | 6 | | | | | |
| | H Zeballos | 7$^7$ | 6 | | | | | | | | J Veselý | 6$^4$ | 3 | | | | | |
| WC | D Altmaier | 6$^2$ | 4 | | | H Zeballos | 4 | 4 | | | | | | | | | | |
| | J Veselý | 7$^9$ | 6$^0$ | 6 | | J Veselý | 6 | 6 | | | | | | | | | | |
| 7 | F Verdasco | 6$^7$ | 7$^7$ | 3 | | | | | | | | | | | LL | L Mayer | 6 | 7 |
| 3 | K Khachanov | 6 | 6 | | | | | | | | | | | | Q | F Delbonis | 3 | 5 |
| Q | R Molleker | 4 | 3 | | 3 | K Khachanov | 7$^7$ | 5 | 6 | | | | | | | | | |
| LL | J Hernández-Fernández | 1 | 2 | | | A Bedene | 6$^4$ | 7 | 4 | | | | | | | | | |
| | A Bedene | 6 | 6 | | | | | | | 3 | K Khachanov | 5 | 6 | 4 | | | | |
| | C Berlocq | 7$^8$ | 5 | 3 | | | | | | Q | F Delbonis | 7 | 3 | 6 | | | | |
| Q | F Delbonis | 6$^6$ | 7 | 6 | Q | F Delbonis | 7 | 6 | | | | | | | | | | |
| | N Basilashvili | 2 | 6 | 3 | 8 | D Ferrer | 5 | 3 | | | | | | | | | | |
| 8 | D Ferrer | 6 | 3 | 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 |
| 5 | B Paire | 6 | 6 | | | | | | | | | | | | | | |
| PR | D Tursunov | 3 | 2 | | 5 | B Paire | 4 | 6$^7$ | | | | | | | | | |
| WC | T Haas | 5 | 2 | | | N Kicker | 6 | 7$^9$ | | | | | | | | | |
| | N Kicker | 7 | 6 | | | | | | | | N Kicker | 6$^6$ | 6 | 4 | | | |
| | P Kohlschreiber | 6 | 6 | | | | | | | | P Kohlschreiber | 7$^8$ | 4 | 6 | | | |
| SE | A Rublev | 3 | 1 | | | P Kohlschreiber | 6 | 3 | 6 | | | | | | | | |
| WC | M Marterer | 2 | 6 | 4 | 4 | G Simon | 3 | 6 | 2 | | | | | | | | |
| 4 | G Simon | 6 | 4 | 6 | | | | | | | | | | | P Kohlschreiber | 6 | 2$^r$ |
| 6 | D Schwartzman | 6 | 6 | | | | | | | | | | | | F Mayer | 4 | 3 |
| PR | A Haider-Maurer | 2 | 3 | | 6 | D Schwartzman | 1 | 6 | 6 | | | | | | | | |
| Q | C-M Stebe | 6 | 6 | | Q | C-M Stebe | 6 | 4 | 2 | | | | | | | | |
| Q | D Džumhur | 3 | 4 | | | | | | | 6 | D Schwartzman | 2 | 6 | 3 | | | |
| | M Cecchinato | 5 | 2 | | | | | | | | F Mayer | 6 | 2 | 6 | | | |
| | F Mayer | 7 | 6 | | | F Mayer | 6 | 4 | 6 | | | | | | | | |
| | A Kuznetsov | 3 | 7 | 6 | | A Kuznetsov | 3 | 6 | 4 | | | | | | | | |
| 2 | P Cuevas | 6 | 5 | 4 | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Damir Džumhur (qualified)
* Federico Delbonis (qualified)
* Márton Fucsovics (first round)
* Casper Ruud (first round)
* Sergiy Stakhovsky (qualifying competition)
* Leonardo Mayer (qualifying competition, lucky loser)
* Gastão Elias (first round, retired)
* Kenny de Schepper (qualifying competition)

### Qualifiers

* Damir Džumhur
* Federico Delbonis
* Cedrik-Marcel Stebe
* Rudolf Molleker

### Lucky losers

* Leonardo Mayer
* José Hernández-Fernández

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Damir Džumhur | 6 | 7 | | | | |
| | Michael Linzer | 3 | 5 | | | | |
| | Michael Linzer | 3 | 5 | 1 | Damir Džumhur | 7$^7$ | 7 |
| | | | | 5 | Sergiy Stakhovsky | 6$^5$ | 5 |
| WC | Jason Jeremy Hildebrandt | 2 | 4 | 5 | Sergiy Stakhovsky | 6$^5$ | 5 |
| 5 | Sergiy Stakhovsky | 6 | 6 | | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Federico Delbonis | 6 | 6 | | | | |
| | José Hernández-Fernández | 1 | 2 | | | | |
| | José Hernández-Fernández | 1 | 2 | 2 | Federico Delbonis | 6 | 6 |
| | | | | 8 | Kenny de Schepper | 1 | 0 |
| | Máximo González | 5 | 5 | 8 | Kenny de Schepper | 1 | 0 |
| 8 | Kenny de Schepper | 7 | 7 | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Márton Fucsovics | 5 | 7$^7$ | 4 | | | | |
| | Cedrik-Marcel Stebe | 7 | 6$^3$ | 6 | | | | |
| | Cedrik-Marcel Stebe | 7 | 6$^3$ | 6 | Cedrik-Marcel Stebe | 6$^2$ | 7$^7$ | 6 |
| | | | | | Oscar Otte | 7$^7$ | 6$^2$ | 1 |
| | Oscar Otte | 1 | | | Oscar Otte | 7$^7$ | 6$^2$ | 1 |
| 7 | Gastão Elias | 2$^r$ | | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Casper Ruud | 6 | 4 | 4 | | | | | |
| WC | Rudolf Molleker | 2 | 6 | 6 | | | | | |
| WC | Rudolf Molleker | 2 | 6 | 6 | WC | Rudolf Molleker | 7$^7$ | 3 | 6 |
| | | | | | 6 | Leonardo Mayer | 6$^2$ | 6 | 3 |
| WC | Louis Wessels | 3 | 2 | | 6 | Leonardo Mayer | 6$^2$ | 6 | 3 |
| 6 | Leonardo Mayer | 6 | 6 | | | | | | |