# 2015 Heilbronner Neckarcup – Singles

Jan-Lennard Struff was the defending champion, but he lost in the semifinals to Alexander Zverev.
Zverev went on to win the title, defeating Guido Pella in the final, 6–1, 7–6$^{(9–7)}$.

## Seeds

* Damir Džumhur (first round)
* Jan-Lennard Struff (semifinals)
* Ričardas Berankis (first round)
* Dustin Brown (first round)
* Alexander Zverev (champion)
* Tobias Kamke (first round)
* Radek Štěpánek (first round)
* Andrey Golubev (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 |
| | Guido Pella | 6 | 6 | | | | |
| | Yoshihito Nishioka | 0 | 1 | | | | |
| | Yoshihito Nishioka | 0 | 1 | | Guido Pella | 1 | 6$^7$ |
| | | | | 5 | Alexander Zverev | 6 | 7$^9$ |
| 5 | Alexander Zverev | 6 | 7$^7$ | 5 | Alexander Zverev | 6 | 7$^9$ |
| 2 | Jan-Lennard Struff | 3 | 6$^2$ | | | | |

### 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 | Semifinals | Semifinals | Semifinals |
| 1 | D Džumhur | 4 | 4 | | | | | | | | | | | | | |
| | A Beck | 6 | 6 | | | A Beck | 6 | 6 | | | | | | | | |
| | J Kubler | 6$^{12}$ | 6 | 7 | | J Kubler | 3 | 2 | | | | | | | | |
| Q | Jeremy Jahn | 7$^{14}$ | 4 | 5 | | | | | | | A Beck | 1 | 5 | | | |
| WC | J Choinski | 6$^6$ | 5 | | | | | | | | G Pella | 6 | 7 | | | |
| | M Copil | 7$^8$ | 7 | | | M Copil | 2 | 3 | | | | | | | | |
| | G Pella | 7$^7$ | 7 | | | G Pella | 6 | 6 | | | | | | | | |
| 6 | T Kamke | 6$^5$ | 5 | | | | | | | | | | | G Pella | 6 | 6 |
| 3 | R Berankis | 6$^6$ | 4 | | | | | | | | | | | Y Nishioka | 0 | 1 |
| | M Berrer | 7$^8$ | 6 | | | M Berrer | 3 | 2 | | | | | | | | |
| Q | J Kovalík | 7$^7$ | 6 | | Q | J Kovalík | 6 | 6 | | | | | | | | |
| | A Nedovyesov | 6$^3$ | 4 | | | | | | | Q | J Kovalík | 3 | 4 | | | |
| | Y Nishioka | 6 | 6$^3$ | 7$^7$ | | | | | | | Y Nishioka | 6 | 6 | | | |
| | I Sijsling | 4 | 7$^7$ | 6$^5$ | | Y Nishioka | 7 | 4 | 7 | | | | | | | |
| | M Authom | 2 | 1 | | 8 | A Golubev | 5 | 6 | 5 | | | | | | | |
| 8 | A Golubev | 6 | 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 | Semifinals |
| 5 | A Zverev | 6 | 6 | | | | | | | | | | | | | | | |
| | H Zeballos | 4 | 2 | | 5 | A Zverev | 6 | 6 | | | | | | | | | | |
| LL | H Laaksonen | 3 | 6 | 3 | | D Novikov | 2 | 3 | | | | | | | | | | |
| | D Novikov | 6 | 3 | 6 | | | | | | 5 | A Zverev | 4 | 6 | 6 | | | | |
| Q | M Moraing | 3 | 4 | | | | | | | | B Fratangelo | 6 | 4 | 3 | | | | |
| WC | N Langer | 6 | 6 | | WC | N Langer | 6$^0$ | 5 | | | | | | | | | | |
| | B Fratangelo | 4 | 7 | 7$^7$ | | B Fratangelo | 7$^7$ | 7 | | | | | | | | | | |
| 4 | D Brown | 6 | 5 | 6$^1$ | | | | | | | | | | | 5 | A Zverev | 6 | 7$^7$ |
| 7 | R Štěpánek | 3 | 5 | | | | | | | | | | | | 2 | J-L Struff | 3 | 6$^2$ |
| | M Bachinger | 6 | 7 | | | M Bachinger | 6 | 7$^9$ | | | | | | | | | | |
| WC | D Brands | 6 | 6 | | WC | D Brands | 3 | 6$^7$ | | | | | | | | | | |
| | K Kravchuk | 3 | 2 | | | | | | | | M Bachinger | 6 | 3 | 3 | | | | |
| | R Albot | 1 | 7 | 6 | | | | | | 2 | J-L Struff | 3 | 6 | 6 | | | | |
| | J Millman | 6 | 5 | 4 | | R Albot | 6 | 3 | 4 | | | | | | | | | |
| Q | J Huta Galung | 3 | 2 | | 2 | J-L Struff | 2 | 6 | 6 | | | | | | | | | |
| 2 | J-L Struff | 6 | 6 | | | | | | | | | | | | | | | |