# 2017 Heilbronner Neckarcup – Singles

Nikoloz Basilashvili was the defending champion but chose not to defend his title.
Filip Krajinović won the title after defeating Norbert Gombos 6–3, 6–2 in the final.

## Seeds

* Nicolás Kicker (first round)
* Evgeny Donskoy (first round)
* Adam Pavlásek (first round)
* Norbert Gombos (final)
* Henri Laaksonen (first round)
* Guido Pella (semifinals)
* Andrej Martin (quarterfinals)
* Casper Ruud (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 |
| | Lorenzo Giustino | 3 | 5 | | | | | |
| 4 | Norbert Gombos | 6 | 7 | | | | | |
| 4 | Norbert Gombos | 6 | 7 | | 4 | Norbert Gombos | 3 | 2 |
| | | | | | Q | Filip Krajinović | 6 | 6 |
| Q | Filip Krajinović | 4 | 6 | 7$^7$ | Q | Filip Krajinović | 6 | 6 |
| 6 | Guido Pella | 6 | 3 | 6$^4$ | | | | |

### 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 | Semifinals |
| 1 | N Kicker | 2 | 6 | 1 | | | | | | | | | | | | | |
| Q | D Köpfer | 6 | 3 | 6 | Q | D Köpfer | 6$^4$ | 6 | 1 | | | | | | | | |
| | D Novikov | 4 | 4 | | | L Giustino | 7$^7$ | 1 | 6 | | | | | | | | |
| | L Giustino | 6 | 6 | | | | | | | | L Giustino | 6 | 7 | | | | |
| | J Kovalík | 6$^0$ | 4 | | | | | | | 7 | A Martin | 3 | 5 | | | | |
| | A Bublik | 7$^7$ | 6 | | | A Bublik | 6 | 3 | 3 | | | | | | | | |
| Q | S Groth | 3 | 3 | | 7 | A Martin | 4 | 6 | 6 | | | | | | | | |
| 7 | A Martin | 6 | 6 | | | | | | | | | | | | L Giustino | 3 | 5 |
| 4 | N Gombos | 4 | 7$^7$ | 6 | | | | | | | | | | 4 | N Gombos | 6 | 7 |
| WC | D Brands | 6 | 6$^5$ | 3 | 4 | N Gombos | 6 | 6 | | | | | | | | | |
| WC | D Altmaier | 4 | 4 | | | S Diez | 1 | 4 | | | | | | | | | |
| | S Diez | 6 | 6 | | | | | | | 4 | N Gombos | 6 | 7 | | | | |
| | C Lestienne | 2 | 1 | | | | | | | 8 | C Ruud | 4 | 5 | | | | |
| | M Bašić | 6 | 6 | | | M Bašić | 5 | 7$^7$ | 5 | | | | | | | | |
| WC | M İlhan | 2 | 6 | 1 | 8 | C Ruud | 7 | 6$^4$ | 7 | | | | | | | | |
| 8 | C Ruud | 6 | 4 | 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | H Laaksonen | 2 | 1 | | | | | | | | | | | | | | | |
| Q | F Krajinović | 6 | 6 | | Q | F Krajinović | 6 | 1 | | | | | | | | | | |
| | T Kamke | 6 | 5 | 7$^7$ | | T Kamke | 1 | 0$^r$ | | | | | | | | | | |
| | S Kozlov | 4 | 7 | 6$^4$ | | | | | | Q | F Krajinović | 7$^7$ | 7$^7$ | | | | | |
| | U Ignatik | 6$^5$ | 1 | | | | | | | | M Fucsovics | 6$^2$ | 6$^3$ | | | | | |
| | K Coppejans | 7$^7$ | 6 | | | K Coppejans | 6 | 3 | 3 | | | | | | | | | |
| | M Fucsovics | 6 | 7 | | | M Fucsovics | 3 | 6 | 6 | | | | | | | | | |
| 3 | A Pavlásek | 2 | 5 | | | | | | | | | | | Q | F Krajinović | 4 | 6 | 7$^7$ |
| 6 | G Pella | 6 | 7$^7$ | | | | | | | | | | | 6 | G Pella | 6 | 3 | 6$^4$ |
| Q | C-M Stebe | 4 | 6$^2$ | | 6 | G Pella | 6 | 6 | | | | | | | | | | |
| WC | Y Maden | 6$^6$ | 1 | | | L Đere | 1 | 0 | | | | | | | | | | |
| | L Đere | 7$^8$ | 6 | | | | | | | 6 | G Pella | 6 | 6 | | | | | |
| | M Cecchinato | 6 | 6 | | | | | | | | M Cecchinato | 2 | 2 | | | | | |
| | D Shapovalov | 3 | 4 | | | M Cecchinato | 6 | 6 | | | | | | | | | | |
| | M Krueger | 6 | 4 | 6 | | M Krueger | 3 | 2 | | | | | | | | | | |
| 2 | E Donskoy | 0 | 6 | 4 | | | | | | | | | | | | | | |