# 2018 Wolffkran Open – Singles

Defending champion Yannick Hanfmann chose not to defend his title.
Filippo Baldi won the title after defeating Gleb Sakharov 6–4, 6–4 in the final.

## Seeds

* Lorenzo Sonego (first round)
* Ugo Humbert (semifinals)
* Marco Trungelliti (first round)
* Stefano Travaglia (second round)
* Dennis Novak (first round)
* Grégoire Barrère (second round)
* Quentin Halys (first round)
* Lucas Miedler (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 | Final | Final | Final |
| Q | Johannes Härteis | 4 | 2 | | | |
| | Gleb Sakharov | 6 | 6 | | | |
| | Gleb Sakharov | 6 | 6 | Gleb Sakharov | 4 | 4 |
| | | | | Filippo Baldi | 6 | 6 |
| | Filippo Baldi | 6 | 7 | Filippo Baldi | 6 | 6 |
| 2/SE | Ugo Humbert | 4 | 5 | | | |

### 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 | L Sonego | 7 | 4 | 4 | | | | | | | | | | | | | | |
| | P Cachin | 5 | 6 | 6 | | P Cachin | 2 | 2 | | | | | | | | | | |
| | D Masur | 7$^8$ | 6 | | | D Masur | 6 | 6 | | | | | | | | | | |
| | B Zapata Miralles | 6$^6$ | 3 | | | | | | | | D Masur | 5 | 3 | | | | | |
| Q | A Erler | 3 | 4 | | | | | | | Q | J Härteis | 7 | 6 | | | | | |
| Q | L Klein | 6 | 6 | | Q | L Klein | 3 | 6 | 5 | | | | | | | | | |
| Q | J Härteis | 0 | 7$^7$ | 7 | Q | J Härteis | 6 | 4 | 7 | | | | | | | | | |
| 5 | D Novak | 6 | 6$^5$ | 5 | | | | | | | | | | | Q | J Härteis | 4 | 2 |
| 4 | S Travaglia | 7 | 6 | | | | | | | | | | | | | G Sakharov | 6 | 6 |
| | T Brkić | 5 | 3 | | 4 | S Travaglia | 6 | 4 | 4 | | | | | | | | | |
| | G Sakharov | 6 | 6 | | | G Sakharov | 3 | 6 | 6 | | | | | | | | | |
| | R Ojeda Lara | 3 | 1 | | | | | | | | G Sakharov | 6 | 3 | 6 | | | | |
| WC | Jeremy Jahn | 6 | 1 | | | | | | | WC | J Jahn | 3 | 6 | 3 | | | | |
| | D Brown | 1 | 0$^r$ | | WC | J Jahn | 7$^7$ | 6 | | | | | | | | | | |
| WC | L Wessels | 7$^{12}$ | 6 | | WC | L Wessels | 6$^5$ | 4 | | | | | | | | | | |
| 8 | L Miedler | 6$^{10}$ | 3 | | | | | | | | | | | | | | | |

### 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 |
| 6/SE | G Barrère | 7$^7$ | 6 | | | | | | | | | | | | | | | |
| WC | Kai Lemstra | 6$^5$ | 3 | | 6/SE | G Barrère | 7 | 5 | 6$^4$ | | | | | | | | | |
| | L Grigelis | 4 | 6$^4$ | | | K Krawietz | 5 | 7 | 7$^7$ | | | | | | | | | |
| | K Krawietz | 6 | 7$^7$ | | | | | | | | K Krawietz | 6 | 2 | 4 | | | | |
| | Christopher Heyman | 5 | 6 | 4 | | | | | | | F Baldi | 4 | 6 | 6 | | | | |
| | B Bonzi | 7 | 4 | 6 | | B Bonzi | 6$^4$ | 6 | 6$^4$ | | | | | | | | | |
| | F Baldi | 6 | 6 | | | F Baldi | 7$^7$ | 2 | 7$^7$ | | | | | | | | | |
| 3 | M Trungelliti | 3 | 4 | | | | | | | | | | | | | F Baldi | 6 | 7 |
| 7 | Q Halys | 7$^8$ | 3 | 6$^3$ | | | | | | | | | | | 2/SE | U Humbert | 4 | 5 |
| | J Ward | 6$^6$ | 6 | 7$^7$ | | J Ward | 5 | 6 | 6$^3$ | | | | | | | | | |
| | V Šafránek | 4 | 2 | | | M Viola | 7 | 1 | 7$^7$ | | | | | | | | | |
| | M Viola | 6 | 6 | | | | | | | | M Viola | 1 | 2 | | | | | |
| | G Mager | 6$^5$ | 6$^5$ | | | | | | | 2/SE | U Humbert | 6 | 6 | | | | | |
| WC | C Seraphim | 7$^7$ | 7$^7$ | | WC | C Seraphim | 3 | 4 | | | | | | | | | | |
| Q | T Lamasine | 6$^1$ | 3 | | 2/SE | U Humbert | 6 | 6 | | | | | | | | | | |
| 2/SE | U Humbert | 7$^7$ | 6 | | | | | | | | | | | | | | | |