# 2017 Hungarian Challenger Open – Singles

Marius Copil was the defending champion but lost in the quarterfinals to Jürgen Melzer.
Melzer won the title after defeating Márton Fucsovics 7–6$^{(8–6)}$, 6–2 in the final.

## Seeds

* Lukáš Lacko (withdrew)
* Sergiy Stakhovsky (first round)
* Marius Copil (quarterfinals)
* Thomas Fabbiano (first round)
* Evgeny Donskoy (first round)
* Norbert Gombos (second round)
* Lee Duck-hee (first round)
* Luca Vanni (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 | Final | Final | Final | Final |
| | Casper Ruud | 0 | 0 | | | | |
| | Márton Fucsovics | 6 | 6 | | | | |
| | Márton Fucsovics | 6 | 6 | | Márton Fucsovics | 6$^6$ | 2 |
| | | | | PR | Jürgen Melzer | 7$^8$ | 6 |
| PR | Jürgen Melzer | 6 | 7$^7$ | PR | Jürgen Melzer | 7$^8$ | 6 |
| LL | Edward Corrie | 4 | 6$^5$ | | | | |

### 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 |
| LL | G Quinzi | 6 | 6 | | | | | | | | | | | | | | |
| WC | A Balázs | 2 | 3 | | LL | G Quinzi | 6 | 2 | 2 | | | | | | | | |
| Q | A Vatutin | 6 | 4 | | Q | A Vatutin | 1 | 6 | 6 | | | | | | | | |
| | L Đere | 3 | 0$^r$ | | | | | | | Q | A Vatutin | 2 | 6 | 6$^5$ | | | |
| Q | M Przysiężny | 4 | 7$^7$ | 6$^1$ | | | | | | | C Ruud | 6 | 4 | 7$^7$ | | | |
| | M Bašić | 6 | 6$^4$ | 7$^7$ | | M Bašić | 5 | 6 | 3 | | | | | | | | |
| | C Ruud | 7 | 6 | | | C Ruud | 7 | 2 | 6 | | | | | | | | |
| 7 | D-h Lee | 5 | 2 | | | | | | | | | | | | C Ruud | 0 | 0 |
| 4 | T Fabbiano | 3 | 3 | | | | | | | | | | | | M Fucsovics | 6 | 6 |
| Q | M Bachinger | 6 | 6 | | Q | M Bachinger | 3 | 3 | | | | | | | | | |
| | L Giustino | 4 | 4 | | | M Fucsovics | 6 | 6 | | | | | | | | | |
| | M Fucsovics | 6 | 6 | | | | | | | | M Fucsovics | 6 | 7 | | | | |
| | F Škugor | 3 | 7$^7$ | 7$^7$ | | | | | | 8 | L Vanni | 3 | 5 | | | | |
| | I Ivashka | 6 | 6$^5$ | 6$^0$ | | F Škugor | 4 | 3 | | | | | | | | | |
| LL | A Arnaboldi | 3 | 3 | | 8 | L Vanni | 6 | 6 | | | | | | | | | |
| 8 | L Vanni | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | N Gombos | 6 | 6 | | | | | | | | | | | | | | |
| WC | M Valkusz | 4 | 2 | | 6 | N Gombos | 7 | 2 | 2 | | | | | | | | |
| WC | G Borsos | 4 | 2 | | PR | J Melzer | 5 | 6 | 6 | | | | | | | | |
| PR | J Melzer | 6 | 6 | | | | | | | PR | J Melzer | 6 | 6 | | | | |
| | J De Loore | 6 | 7$^7$ | | | | | | | 3 | M Copil | 4 | 4 | | | | |
| | Marc Sieber | 3 | 6$^4$ | | | J De Loore | 4 | 6 | 1 | | | | | | | | |
| | V Šafránek | 1 | 4 | | 3 | M Copil | 6 | 4 | 6 | | | | | | | | |
| 3 | M Copil | 6 | 6 | | | | | | | | | | | PR | J Melzer | 6 | 7$^7$ |
| 5 | E Donskoy | 4 | 6 | 3 | | | | | | | | | | LL | E Corrie | 4 | 6$^5$ |
| | Y Reuter | 6 | 4 | 6 | | Y Reuter | 6 | 3 | 4 | | | | | | | | |
| LL | E Corrie | 0 | 6 | 6 | LL | E Corrie | 4 | 6 | 6 | | | | | | | | |
| WC | Z Piros | 6 | 4 | 2 | | | | | | LL | E Corrie | 6 | 6 | | | | |
| Q | Y Hanfmann | 3 | 6$^4$ | | | | | | | | Y Maden | 4 | 4 | | | | |
| | Y Maden | 6 | 7$^7$ | | | Y Maden | 6 | 3 | 6 | | | | | | | | |
| | B Kavčič | 3 | 6 | 6 | | B Kavčič | 3 | 6 | 4 | | | | | | | | |
| 2 | S Stakhovsky | 6 | 3 | 4 | | | | | | | | | | | | | |