# 2017 Columbus Challenger – Singles

Stefan Kozlov was the defending champion but chose not to defend his title.
Ante Pavić won the title after defeating Alexander Ward 6–7$^{(11–13)}$, 6–4, 6–3 in the final.

## Seeds

* Quentin Halys (quarterfinals)
* Ramkumar Ramanathan (second round)
* Yuki Bhambri (first round, retired)
* Denis Kudla (quarterfinals)
* Mackenzie McDonald (first round)
* Brayden Schnur (first round)
* Dennis Novikov (semifinals)
* Christian Garín (first 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 |
| 7 | Dennis Novikov | 1 | 3 | | | | | |
| PR | Alexander Ward | 6 | 6 | | | | | |
| PR | Alexander Ward | 6 | 6 | PR | Alexander Ward | 7$^{13}$ | 4 | 3 |
| | | | | Alt | Ante Pavić | 6$^{11}$ | 6 | 6 |
| PR | Frank Dancevic | 3 | 5 | Alt | Ante Pavić | 6$^{11}$ | 6 | 6 |
| Alt | Ante Pavić | 6 | 7 | | | | | |

### 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 | Semifinals |
| 1 | Q Halys | 3 | 7$^7$ | 6 | | | | | | | | | | | | | | |
| | B Klein | 6 | 6$^5$ | 1 | 1 | Q Halys | 6 | 6 | | | | | | | | | | |
| WC | J McNally | 6 | 3 | 3 | PR | K King | 3 | 2 | | | | | | | | | | |
| PR | K King | 4 | 6 | 6 | | | | | | 1 | Q Halys | 1 | 6 | 4 | | | | |
| | A Krajicek | 6 | 6 | | | | | | | 7 | D Novikov | 6 | 2 | 6 | | | | |
| WC | Kyle Seelig | 4 | 2 | | | A Krajicek | 4 | 3 | | | | | | | | | | |
| Q | M Barton | 7 | 1 | 3 | 7 | D Novikov | 6 | 6 | | | | | | | | | | |
| 7 | D Novikov | 5 | 6 | 6 | | | | | | | | | | | 7 | D Novikov | 1 | 3 |
| 4 | D Kudla | 6 | 6 | | | | | | | | | | | | PR | A Ward | 6 | 6 |
| | D Köpfer | 4 | 4 | | 4 | D Kudla | 7 | 6 | | | | | | | | | | |
| Q | L Bambridge | 4 | 2 | | WC | J. J. Wolf | 5 | 3 | | | | | | | | | | |
| WC | J. J. Wolf | 6 | 6 | | | | | | | 4 | D Kudla | 6 | 4 | 2 | | | | |
| | P Gunneswaran | 6$^4$ | 6$^1$ | | | | | | | PR | A Ward | 3 | 6 | 6 | | | | |
| WC | Martin Joyce | 7$^7$ | 7$^7$ | | WC | M Joyce | 6 | 2 | 3 | | | | | | | | | |
| PR | A Ward | 6 | 6 | | PR | A Ward | 4 | 6 | 6 | | | | | | | | | |
| 5 | M McDonald | 2 | 2 | | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | B Schnur | 6 | 3 | 6$^5$ | | | | | | | | | | | | | |
| PR | F Dancevic | 4 | 6 | 7$^7$ | PR | F Dancevic | 6 | 6 | | | | | | | | | |
| Q | Jared Hiltzik | 3 | 5 | | | DE Galán | 0 | 2 | | | | | | | | | |
| | DE Galán | 6 | 7 | | | | | | PR | F Dancevic | 7$^7$ | 7$^7$ | | | | | |
| | P Kobelt | 6$^4$ | 6$^6$ | | | | | | | E King | 6$^5$ | 6$^4$ | | | | | |
| | E King | 7$^7$ | 7$^8$ | | | E King | 6 | 7$^7$ | | | | | | | | | |
| | J Hernández-Fernández | 4 | 7$^7$ | 2 | | J Hernández-Fernández | 4 | 6$^1$ | | | | | | | | | |
| 3 | Y Bhambri | 6 | 6$^5$ | 0$^r$ | | | | | | | | | | PR | F Dancevic | 3 | 5 |
| 8 | C Garín | 4 | 3 | | | | | | | | | | | Alt | A Pavić | 6 | 7 |
| Alt | A Pavić | 6 | 6 | | Alt | A Pavić | 6 | 6 | | | | | | | | | |
| Q | A Vukic | 5 | 5 | | | R Quiroz | 1 | 2 | | | | | | | | | |
| | R Quiroz | 7 | 7 | | | | | | Alt | A Pavić | 6$^9$ | 6 | 6 | | | | |
| | M Torpegaard | 6$^2$ | 4 | | | | | | | F Peliwo | 7$^{11}$ | 3 | 3 | | | | |
| | F Peliwo | 7$^7$ | 6 | | | F Peliwo | 6 | 6 | | | | | | | | | |
| | S Bangoura | 6$^7$ | 4 | | 2 | R Ramanathan | 2 | 1 | | | | | | | | | |
| 2 | R Ramanathan | 7$^9$ | 6 | | | | | | | | | | | | | | |