# 2017 City of Onkaparinga ATP Challenger – Singles

Taylor Fritz was the defending champion but chose not to defend his title.
Peter Gojowczyk won the title after defeating Omar Jasika 6–3, 6–1 in the final.

## Seeds

* Donald Young (first round)
* João Souza (first round)
* Denis Kudla (semifinals)
* Peter Polansky (quarterfinals)
* Norbert Gombos (first round)
* Darian King (quarterfinals)
* Grega Žemlja (first round)
* Márton Fucsovics (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 |
| | Peter Gojowczyk | 6 | 6 | | | | | |
| 3 | Denis Kudla | 4 | 2 | | | | | |
| 3 | Denis Kudla | 4 | 2 | | | Peter Gojowczyk | 6 | 6 |
| | | | | | WC | Omar Jasika | 3 | 1 |
| WC | Omar Jasika | 6 | 4 | 7$^7$ | WC | Omar Jasika | 3 | 1 |
| | Joris De Loore | 4 | 6 | 6$^3$ | | | | |

### 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 | D Young | 4 | 6 | 6$^3$ | | | | | | | | | | | | | |
| | R Bemelmans | 6 | 2 | 7$^7$ | | R Bemelmans | 6 | 6 | | | | | | | | | |
| | J McGee | 0 | 4 | | Q | Y Uchiyama | 3 | 0 | | | | | | | | | |
| Q | Y Uchiyama | 6 | 6 | | | | | | | | R Bemelmans | 6$^6$ | 4 | | | | |
| | P Gojowczyk | 6 | 6 | | | | | | | | P Gojowczyk | 7$^8$ | 6 | | | | |
| | M Tepavac | 4 | 4 | | | P Gojowczyk | 6 | 6 | | | | | | | | | |
| | M Mmoh | 6 | 6 | | | M Mmoh | 2 | 3 | | | | | | | | | |
| 7 | G Žemlja | 2 | 4 | | | | | | | | | | | | P Gojowczyk | 6 | 6 |
| 3 | D Kudla | 2 | 6 | 6 | | | | | | | | | | 3 | D Kudla | 4 | 2 |
| | U Ignatik | 6 | 4 | 4 | 3 | D Kudla | 6 | 6 | | | | | | | | | |
| Q | A Bublik | 6 | 2 | 3 | | K Coppejans | 2 | 2 | | | | | | | | | |
| | K Coppejans | 3 | 6 | 6 | | | | | | 3 | D Kudla | 6 | 7$^7$ | | | | |
| Q | L Saville | 4 | 6 | 6 | | | | | | 6 | D King | 2 | 6$^4$ | | | | |
| WC | M Purcell | 6 | 3 | 3 | Q | L Saville | 6 | 6$^6$ | 2 | | | | | | | | |
| | A Sarkissian | 4 | 4 | | 6 | D King | 4 | 7$^8$ | 6 | | | | | | | | |
| 6 | D King | 6 | 6 | | | | | | | | | | | | | | |

### Bottom 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 | Semifinals |
| 5 | N Gombos | 2 | 7$^9$ | 5 | | | | | | | | | | | | | |
| WC | O Jasika | 6 | 6$^7$ | 7 | WC | O Jasika | 6 | 6 | | | | | | | | | |
| | T Ito | 3 | 2 | | Q | A Bolt | 3 | 3 | | | | | | | | | |
| Q | A Bolt | 6 | 6 | | | | | | WC | O Jasika | 6 | 6 | | | | | |
| | B Mott | 6$^4$ | 7$^7$ | 4 | | | | | 4 | P Polansky | 4 | 2 | | | | | |
| | D Brands | 7$^7$ | 6$^5$ | 6 | | D Brands | 6$^3$ | 4 | | | | | | | | | |
| WC | M Polmans | 1 | 6 | 4 | 4 | P Polansky | 7$^7$ | 6 | | | | | | | | | |
| 4 | P Polansky | 6 | 4 | 6 | | | | | | | | | WC | O Jasika | 6 | 4 | 7$^7$ |
| 8 | M Fucsovics | 6 | 3 | 6 | | | | | | | | | | J De Loore | 4 | 6 | 6$^3$ |
| | M Arévalo | 1 | 6 | 3 | 8 | M Fucsovics | 6 | 6 | | | | | | | | | |
| | I Ivashka | 6 | 6 | | | I Ivashka | 3 | 3 | | | | | | | | | |
| | J Šátral | 3 | 4 | | | | | | 8 | M Fucsovics | 6$^6$ | 3 | | | | | |
| | J De Loore | 6 | 6 | | | | | | | J De Loore | 7$^8$ | 6 | | | | | |
| | L Đere | 2 | 3 | | | J De Loore | 6 | 6 | | | | | | | | | |
| PR | M Bachinger | 6$^5$ | 6 | 6 | PR | M Bachinger | 2 | 4 | | | | | | | | | |
| 2 | J Souza | 7$^7$ | 4 | 3 | | | | | | | | | | | | | |