# 2016 Heilbronner Neckarcup – Singles

Alexander Zverev was the defending champion, but chose not to defend his title.
Nikoloz Basilashvili won the title after defeating Jan-Lennard Struff 6–4, 7–6$^{(7–3)}$ in the final.

## Seeds

* Ričardas Berankis (first round)
* Horacio Zeballos (first round)
* Albert Montañés (semifinals)
* Daniel Muñoz de la Nava (first round)
* Yoshihito Nishioka (first round)
* Jan-Lennard Struff (final)
* Dustin Brown (first round)
* Igor Sijsling (quarterfinals)

## 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 | Semifinals | Final | Final | Final | Final |
| | Jozef Kovalík | 6 | 4 | 3 | | | | |
| | Nikoloz Basilashvili | 1 | 6 | 6 | | | | |
| | Nikoloz Basilashvili | 1 | 6 | 6 | | Nikoloz Basilashvili | 6 | 7$^7$ |
| | | | | | 6 | Jan-Lennard Struff | 4 | 6$^3$ |
| 3 | Albert Montañés | 0 | 3 | | 6 | Jan-Lennard Struff | 4 | 6$^3$ |
| 6 | Jan-Lennard Struff | 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 | Semifinals |
| 1 | R Berankis | 3 | 6 | 3 | | | | | | | | | | | | | | |
| | M İlhan | 6 | 1 | 6 | | M İlhan | 6 | 2 | 3 | | | | | | | | | |
| WC | J Tipsarević | 5 | 3 | | | C Berlocq | 2 | 6 | 6 | | | | | | | | | |
| | C Berlocq | 7 | 6 | | | | | | | | C Berlocq | 1 | 4 | | | | | |
| | A Rublev | 2 | 2 | | | | | | | | J Kovalík | 6 | 6 | | | | | |
| | F Škugor | 6 | 6 | | | F Škugor | 6$^5$ | 2 | | | | | | | | | | |
| | J Kovalík | 6 | 4 | 6 | | J Kovalík | 7$^7$ | 6 | | | | | | | | | | |
| 5 | Y Nishioka | 2 | 6 | 3 | | | | | | | | | | | J Kovalík | 6 | 4 | 3 |
| 4 | D Muñoz de la Nava | 4 | 1 | | | | | | | | | | | | N Basilashvili | 1 | 6 | 6 |
| | N Basilashvili | 6 | 6 | | | N Basilashvili | 6$^4$ | 6 | 7$^7$ | | | | | | | | | |
| Q | P Torebko | 6 | 2 | 3 | | B Rola | 7$^7$ | 3 | 6$^5$ | | | | | | | | | |
| | B Rola | 3 | 6 | 6 | | | | | | | N Basilashvili | 6 | 3 | 6 | | | | |
| WC | M Marterer | 7$^7$ | 6 | | | | | | | 8 | I Sijsling | 2 | 6 | 4 | | | | |
| Q | A Beck | 6$^2$ | 2 | | WC | M Marterer | 2 | 4 | | | | | | | | | | |
| | A Menéndez-Maceiras | 1 | 6$^8$ | | 8 | I Sijsling | 6 | 6 | | | | | | | | | | |
| 8 | I Sijsling | 6 | 7$^{10}$ | | | | | | | | | | | | | | | |

### 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 |
| 7 | D Brown | 3 | 6 | 2 | | | | | | | | | | | | | |
| LL | Y Reuter | 6 | 3 | 6 | LL | Y Reuter | 6 | 6 | | | | | | | | | |
| | G Soeda | 4 | 5 | | WC | Y Maden | 3 | 4 | | | | | | | | | |
| WC | Y Maden | 6 | 7 | | | | | | | LL | Y Reuter | 1 | 4 | | | | |
| | N Kicker | 6 | 6 | | | | | | | 3 | A Montañés | 6 | 6 | | | | |
| Q | K Krawietz | 4 | 2 | | | N Kicker | 3 | 1 | | | | | | | | | |
| Q | H Laaksonen | 4 | 3 | | 3 | A Montañés | 6 | 6 | | | | | | | | | |
| 3 | A Montañés | 6 | 6 | | | | | | | | | | | 3 | A Montañés | 0 | 3 |
| 6 | J-L Struff | 7$^7$ | 7$^8$ | | | | | | | | | | | 6 | J-L Struff | 6 | 6 |
| | M Zverev | 6$^3$ | 6$^6$ | | 6 | J-L Struff | 7 | 6$^3$ | 6 | | | | | | | | |
| | R Harrison | 6 | 3 | 2 | | R Olivo | 5 | 7$^7$ | 4 | | | | | | | | |
| | R Olivo | 3 | 6 | 6 | | | | | | 6 | J-L Struff | 6 | 6 | | | | |
| | A González | 6 | 3 | 3 | | | | | | WC | F Mayer | 2 | 3 | | | | |
| | F Tiafoe | 3 | 6 | 6 | | F Tiafoe | 3 | 6 | 1 | | | | | | | | |
| WC | F Mayer | 4 | 7 | 6 | WC | F Mayer | 6 | 1 | 6 | | | | | | | | |
| 2 | H Zeballos | 6 | 5 | 4 | | | | | | | | | | | | | |