# 2017 Båstad Challenger – Singles

Horacio Zeballos was the defending champion but chose not to defend his title.
Dušan Lajović won the title after defeating Leonardo Mayer 6–2, 7–6$^{(7–4)}$ in the final.

## Seeds

* Dušan Lajović (champion)
* Renzo Olivo (quarterfinals)
* Henri Laaksonen (quarterfinals)
* Facundo Bagnis (semifinals)
* Casper Ruud (first round)
* Arthur De Greef (second round)
* Roberto Carballés Baena (second round)
* Guillermo García López (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 |
| 1 | Dušan Lajović | 7$^7$ | 6 | | | | |
| 4 | Facundo Bagnis | 6$^4$ | 3 | | | | |
| 4 | Facundo Bagnis | 6$^4$ | 3 | 1 | Dušan Lajović | 6 | 7$^7$ |
| | | | | | Leonardo Mayer | 2 | 6$^4$ |
| | Leonardo Mayer | 6 | 6 | | Leonardo Mayer | 2 | 6$^4$ |
| WC | Mikael Ymer | 3 | 0 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | D Lajović | 4 | 6 | 6 | | | | | | | | | | | | |
| WC | M Eriksson | 6 | 4 | 2 | 1 | D Lajović | 6 | 6 | | | | | | | | |
| | K Coppejans | 6 | 7 | | | K Coppejans | 2 | 3 | | | | | | | | |
| | T Kamke | 3 | 5 | | | | | | 1 | D Lajović | 6 | 7 | | | | |
| WC | C Söderlund | 4 | 4 | | | | | | WC | E Ymer | 3 | 5 | | | | |
| WC | E Ymer | 6 | 6 | | WC | E Ymer | 6 | 6 | | | | | | | | |
| Q | H Hurkacz | 6 | 3 | 3 | 6 | A De Greef | 3 | 1 | | | | | | | | |
| 6 | A De Greef | 4 | 6 | 6 | | | | | | | | | 1 | D Lajović | 7$^7$ | 6 |
| 4 | F Bagnis | 6 | 6 | | | | | | | | | | 4 | F Bagnis | 6$^4$ | 3 |
| | M Bourgue | 3 | 2 | | 4 | F Bagnis | 6 | 6 | | | | | | | | |
| Alt | C Hemery | 6$^5$ | 6 | 5 | | J Domingues | 1 | 3 | | | | | | | | |
| | J Domingues | 7$^7$ | 4 | 7 | | | | | 4 | F Bagnis | 6 | 6 | | | | |
| | A Nedovyesov | 6 | 5 | 6 | | | | | | A Nedovyesov | 2 | 2 | | | | |
| | S Robert | 2 | 7 | 4 | | A Nedovyesov | 6 | 6 | | | | | | | | |
| Q | F Simonsson | 3 | 2 | | 8 | G García López | 2 | 4 | | | | | | | | |
| 8 | G García López | 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 | C Ruud | 6 | 6$^6$ | 4 | | | | | | | | | | | | | | |
| | L Mayer | 3 | 7$^8$ | 6 | | L Mayer | 7$^7$ | 6 | | | | | | | | | | |
| | C Garin | 1 | 1 | | | F Krajinović | 6$^5$ | 3 | | | | | | | | | | |
| | F Krajinović | 6 | 6 | | | | | | | | L Mayer | 3 | 6 | 6 | | | | |
| Alt | K Majchrzak | 4 | 6 | 6 | | | | | | 3 | H Laaksonen | 6 | 3 | 2 | | | | |
| Q | JI Londero | 6 | 2 | 3 | Alt | K Majchrzak | 4 | 1 | | | | | | | | | | |
| | T Lamasine | 1 | 4 | | 3 | H Laaksonen | 6 | 6 | | | | | | | | | | |
| 3 | H Laaksonen | 6 | 6 | | | | | | | | | | | | | L Mayer | 6 | 6 |
| 7 | R Carballés Baena | 6 | 3 | | | | | | | | | | | | WC | M Ymer | 3 | 0 |
| | R Bellotti | 0 | 0$^r$ | | 7 | R Carballés Baena | 6 | 5 | 2 | | | | | | | | | |
| WC | M Ymer | 1 | 7 | 6 | WC | M Ymer | 4 | 7 | 6 | | | | | | | | | |
| | Í Cervantes | 6 | 5 | 3 | | | | | | WC | M Ymer | 6 | 6 | | | | | |
| Q | I Arvidsson | 6 | 6 | | | | | | | 2 | R Olivo | 2 | 4 | | | | | |
| | V Šafránek | 3 | 3 | | Q | I Arvidsson | 5 | 6$^3$ | | | | | | | | | | |
| | T Robredo | 2 | 5 | | 2 | R Olivo | 7 | 7$^7$ | | | | | | | | | | |
| 2 | R Olivo | 6 | 7 | | | | | | | | | | | | | | | |