# 2017 The Hague Open – Singles

Robin Haase was the defending champion but lost in the first round to Thiemo de Bakker.
Guillermo García López won the title after defeating Ruben Bemelmans 6–1, 6–7$^{(3–7)}$, 6–2 in the final.

## Seeds

* Robin Haase (first round)
* Taro Daniel (first round)
* Gastão Elias (second round)
* Sergiy Stakhovsky (second round)
* Ruben Bemelmans (final)
* Guillermo García López (champion)
* João Souza (first round)
* Jozef Kovalík (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 | Final |
| WC | Thiemo de Bakker | 3$^r$ | | | | | | |
| 6 | Guillermo García López | 4 | | | | | | |
| 6 | Guillermo García López | 4 | | 6 | Guillermo García López | 6 | 6$^3$ | 6 |
| | | | | 5 | Ruben Bemelmans | 1 | 7$^7$ | 2 |
| 5 | Ruben Bemelmans | 6 | 6 | 5 | Ruben Bemelmans | 1 | 7$^7$ | 2 |
| Q | Marko Tepavac | 2 | 1 | | | | | |

### 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/WC | R Haase | 6$^7$ | 4 | | | | | | | | | | | | | |
| WC | T de Bakker | 7$^9$ | 6 | | WC | T de Bakker | 6 | 6$^{11}$ | 6 | | | | | | | |
| | R Bellotti | 4 | 6 | 7$^7$ | | R Bellotti | 4 | 7$^{13}$ | 2 | | | | | | | |
| Q | JI Londero | 6 | 1 | 6$^2$ | | | | | | WC | T de Bakker | 6 | 6 | | | |
| | J Domingues | 6$^3$ | 4 | | | | | | | | S Tsitsipas | 1 | 4 | | | |
| | S Tsitsipas | 7$^7$ | 6 | | | S Tsitsipas | 7 | 6 | | | | | | | | |
| | D Brands | 3 | 6$^4$ | | 8 | J Kovalík | 5 | 1 | | | | | | | | |
| 8 | J Kovalík | 6 | 7$^7$ | | | | | | | | | | | WC | T de Bakker | 3$^r$ |
| 3 | G Elias | 5 | 6 | 6 | | | | | | | | | | 6 | G García López | 4 |
| | M Bašić | 7 | 3 | 4 | 3 | G Elias | 6 | 1 | 3 | | | | | | | |
| WC | B van de Zandschulp | 4 | 6 | 6 | WC | B van de Zandschulp | 2 | 6 | 6 | | | | | | | |
| | Y Mertens | 6 | 3 | 2 | | | | | | WC | B van de Zandschulp | 4 | 3 | | | |
| | M González | 6 | 6 | | | | | | | 6 | G García López | 6 | 6 | | | |
| | Clément Geens | 4 | 2 | | | M González | 7 | 3 | 4 | | | | | | | |
| | T Griekspoor | 4 | 6 | 2 | 6 | G García López | 5 | 6 | 6 | | | | | | | |
| 6 | G García López | 6 | 1 | 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 | R Bemelmans | 6 | 6 | | | | | | | | | | | | | | | |
| | S Ofner | 2 | 0 | | 5 | R Bemelmans | 6 | 2 | 6 | | | | | | | | | |
| | G Sakharov | 7$^7$ | 3 | 6 | | G Sakharov | 3 | 6 | 3 | | | | | | | | | |
| LL | M Banes | 6$^4$ | 6 | 4 | | | | | | 5 | R Bemelmans | 6 | 6 | | | | | |
| WC | Michiel de Krom | 0 | 3 | | | | | | | PR | S Bolelli | 2 | 4 | | | | | |
| PR | S Bolelli | 6 | 6 | | PR | S Bolelli | 6 | 3 | 6 | | | | | | | | | |
| Q | George von Massow | 6$^5$ | 2 | | 4 | S Stakhovsky | 4 | 6 | 3 | | | | | | | | | |
| 4 | S Stakhovsky | 7$^7$ | 6 | | | | | | | | | | | | 5 | R Bemelmans | 6 | 6 |
| 7 | J Souza | 6$^5$ | 6 | 3 | | | | | | | | | | | Q | M Tepavac | 2 | 1 |
| | J De Loore | 7$^7$ | 4 | 6 | | J De Loore | 6 | 6 | | | | | | | | | | |
| | Í Cervantes | 6 | 6 | | | Í Cervantes | 2 | 3 | | | | | | | | | | |
| Q | S Verbeek | 3 | 4 | | | | | | | | J De Loore | 6$^3$ | 6 | 3 | | | | |
| | D Gimeno Traver | 3 | 4 | | | | | | | Q | M Tepavac | 7$^7$ | 4 | 6 | | | | |
| Q | M Tepavac | 6 | 6 | | Q | M Tepavac | 2 | 6 | 6 | | | | | | | | | |
| | F Krajinović | 7 | 7$^7$ | | | F Krajinović | 6 | 3 | 2 | | | | | | | | | |
| 2 | T Daniel | 5 | 6$^2$ | | | | | | | | | | | | | | | |