# 2017 JSM Challenger of Champaign–Urbana – Singles

Henri Laaksonen was the defending champion but lost in the second round to Filip Peliwo.
Tim Smyczek won the title after defeating Bjorn Fratangelo 6–2, 6–4 in the final.

## Seeds

* Tennys Sandgren (quarterfinals)
* Henri Laaksonen (second round)
* Taylor Fritz (semifinals)
* Cameron Norrie (semifinals)
* Bjorn Fratangelo (final)
* Michael Mmoh (first round)
* Tim Smyczek (champion)
* Tommy Paul (quarterfinals, retired)

## 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 |
| 7 | Tim Smyczek | 7 | 6$^5$ | 6 | | | | |
| 4 | Cameron Norrie | 5 | 7$^7$ | 3 | | | | |
| 4 | Cameron Norrie | 5 | 7$^7$ | 3 | 7 | Tim Smyczek | 6 | 6 |
| | | | | | 5 | Bjorn Fratangelo | 2 | 4 |
| 3 | Taylor Fritz | 6 | 3 | 2 | 5 | Bjorn Fratangelo | 2 | 4 |
| 5 | Bjorn Fratangelo | 3 | 6 | 6 | | | | |

### 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 | Semifinals |
| 1 | T Sandgren | 6 | 6$^1$ | 6 | | | | | | | | | | | | | |
| WC | Aron Hiltzik | 1 | 7$^7$ | 0 | 1 | T Sandgren | w/o | | | | | | | | | | |
| | E Corrie | 6 | 4 | 4 | | C Harrison | | | | | | | | | | | |
| | C Harrison | 3 | 6 | 6 | | | | | 1 | T Sandgren | 4 | 4 | | | | | |
| WC | Dennis Nevolo | 4 | 6 | 6 | | | | | 7 | T Smyczek | 6 | 6 | | | | | |
| Q | Samuel Monnette | 6 | 4 | 0 | WC | D Nevolo | 3 | 6$^4$ | | | | | | | | | |
| Q | A Ward | 4 | 6$^4$ | | 7 | T Smyczek | 6 | 7$^7$ | | | | | | | | | |
| 7 | T Smyczek | 6 | 7$^7$ | | | | | | | | | | 7 | T Smyczek | 7 | 6$^5$ | 6 |
| 4 | C Norrie | 6 | 6 | | | | | | | | | | 4 | C Norrie | 5 | 7$^7$ | 3 |
| WC | A Vukic | 2 | 3 | | 4 | C Norrie | 6 | 6 | | | | | | | | | |
| WC | Jared Hiltzik | 3 | 6 | 7$^7$ | WC | J Hiltzik | 2 | 4 | | | | | | | | | |
| | M Krueger | 6 | 4 | 6$^2$ | | | | | 4 | C Norrie | 6 | 6 | | | | | |
| | J-P Smith | 6 | 6 | | | | | | | M McDonald | 2 | 0 | | | | | |
| | M Giron | 3 | 1 | | | J-P Smith | 5 | 6$^5$ | | | | | | | | | |
| | M McDonald | 6 | 6 | | | M McDonald | 7 | 7$^7$ | | | | | | | | | |
| 6 | M Mmoh | 2 | 1 | | | | | | | | | | | | | | |

### 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 | Semifinals |
| 8 | T Paul | 6 | 6 | | | | | | | | | | | | | | | | |
| | D Köpfer | 2 | 4 | | 8 | T Paul | 6 | 3 | 7$^7$ | | | | | | | | | | |
| | N Rubin | 4 | 2 | | Q | M Ymer | 4 | 6 | 6$^0$ | | | | | | | | | | |
| Q | M Ymer | 6 | 6 | | | | | | | 8 | T Paul | 1 | 0$^r$ | | | | | | |
| | B Sant'Anna | 6 | 3 | 1 | | | | | | 3 | T Fritz | 6 | 3 | | | | | | |
| Q | R Schneider | 4 | 6 | 6 | Q | R Schneider | 4 | 3 | | | | | | | | | | | |
| | A Sarkissian | 2 | 1 | | 3 | T Fritz | 6 | 6 | | | | | | | | | | | |
| 3 | T Fritz | 6 | 6 | | | | | | | | | | | | 3 | T Fritz | 6 | 3 | 2 |
| 5 | B Fratangelo | 3 | 7$^7$ | 6 | | | | | | | | | | | 5 | B Fratangelo | 3 | 6 | 6 |
| | S Fanselow | 6 | 6$^0$ | 1 | 5 | B Fratangelo | 6 | 6 | | | | | | | | | | | |
| | B Klahn | 6 | 6 | | | B Klahn | 4 | 4 | | | | | | | | | | | |
| | N Scholtz | 2 | 3 | | | | | | | 5 | B Fratangelo | 4 | 7 | 7$^7$ | | | | | |
| | F Peliwo | 7 | 3 | 6 | | | | | | | F Peliwo | 6 | 5 | 6$^4$ | | | | | |
| | C Eubanks | 5 | 6 | 3 | | F Peliwo | 6 | 7 | | | | | | | | | | | |
| | M Moraing | 4 | 4 | | 2 | H Laaksonen | 3 | 5 | | | | | | | | | | | |
| 2 | H Laaksonen | 6 | 6 | | | | | | | | | | | | | | | | |