# 2018 Cary Challenger – Singles

Kevin King was the defending champion but lost in the first round to James Duckworth.
Duckworth won the title after defeating Reilly Opelka 7–6$^{(7–4)}$, 6–3 in the final.

## Seeds

* Peter Polansky (first round)
* Elias Ymer (first round)
* Marcelo Arévalo (second round)
* Reilly Opelka (final)
* Bjorn Fratangelo (semifinals)
* Kevin King (first round)
* Alexei Popyrin (second round)
* Maverick Banes (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 |
| 5 | Bjorn Fratangelo | 3 | 4 | | | | |
| Q | James Duckworth | 6 | 6 | | | | |
| Q | James Duckworth | 6 | 6 | Q | James Duckworth | 7$^7$ | 6 |
| | | | | 4 | Reilly Opelka | 6$^4$ | 3 |
| 4 | Reilly Opelka | 6 | 6 | 4 | Reilly Opelka | 6$^4$ | 3 |
| | Kaichi Uchida | 3 | 4 | | | | |

### 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 | P Polansky | 3 | 4 | | | | | | | | | | | | | | | |
| | A González | 6 | 6 | | | A González | 4 | 6 | 6 | | | | | | | | | |
| | M Ymer | 6 | 2 | 7$^7$ | | M Ymer | 6 | 3 | 4 | | | | | | | | | |
| | D Pérez Sanz | 2 | 6 | 6$^2$ | | | | | | | A González | 7$^7$ | 5 | 4 | | | | |
| | M Krueger | 3 | 7$^7$ | 3 | | | | | | 5 | B Fratangelo | 6$^5$ | 7 | 6 | | | | |
| | C Eubanks | 6 | 6$^3$ | 6 | | C Eubanks | 4 | 4 | | | | | | | | | | |
| WC | A Galarneau | 4 | 3 | | 5 | B Fratangelo | 6 | 6 | | | | | | | | | | |
| 5 | B Fratangelo | 6 | 6 | | | | | | | | | | | | 5 | B Fratangelo | 3 | 4 |
| 3 | M Arévalo | 6 | 6 | | | | | | | | | | | | Q | J Duckworth | 6 | 6 |
| Q | J. J. Wolf | 3 | 3 | | 3 | M Arévalo | 6$^3$ | 5 | | | | | | | | | | |
| WC | S Korda | 6$^3$ | 4 | | Q | J De Loore | 7$^7$ | 7 | | | | | | | | | | |
| Q | J De Loore | 7$^7$ | 6 | | | | | | | Q | J De Loore | 3 | 6$^3$ | | | | | |
| Q | Evan Song | 6 | 6 | | | | | | | Q | J Duckworth | 6 | 7$^7$ | | | | | |
| WC | Nick Stachowiak | 3 | 2 | | Q | E Song | 3 | 6$^4$ | | | | | | | | | | |
| Q | J Duckworth | 4 | 6 | 6 | Q | J Duckworth | 6 | 7$^7$ | | | | | | | | | | |
| 6 | K King | 6 | 4 | 3 | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | A Popyrin | 6 | 6 | | | | | | | | | | | | | | |
| | JC Aragone | 3 | 4 | | 7 | A Popyrin | 7$^7$ | 6$^5$ | 6$^3$ | | | | | | | | |
| | R Ortega Olmedo | 6 | 5 | 1 | | D Köpfer | 6$^5$ | 7$^7$ | 7$^7$ | | | | | | | | |
| | D Köpfer | 3 | 7 | 6 | | | | | | | D Köpfer | 6$^4$ | 4 | | | | |
| | J Choinski | 7$^7$ | 2 | 1 | | | | | | 4 | R Opelka | 7$^7$ | 6 | | | | |
| | D Young | 6$^4$ | 6 | 6 | | D Young | 1 | 6$^5$ | | | | | | | | | |
| | E Escobedo | 6$^{11}$ | 4 | | 4 | R Opelka | 6 | 7$^7$ | | | | | | | | | |
| 4 | R Opelka | 7$^{13}$ | 6 | | | | | | | | | | | 4 | R Opelka | 6 | 6 |
| 8 | M Banes | 2 | 6 | 3 | | | | | | | | | | | K Uchida | 3 | 4 |
| | E King | 6 | 1 | 6 | | E King | 4 | 3 | | | | | | | | | |
| | R Cid Subervi | 3 | 1 | | | K Uchida | 6 | 6 | | | | | | | | | |
| | K Uchida | 6 | 6 | | | | | | | | K Uchida | 6 | 6 | | | | |
| WC | W Blumberg | 6$^5$ | 6 | 0 | | | | | | | J Hernández-Fernández | 4 | 3 | | | | |
| | A Harris | 7$^7$ | 3 | 0$^r$ | WC | W Blumberg | 4 | 3 | | | | | | | | | |
| | J Hernández-Fernández | 6 | 6 | | | J Hernández-Fernández | 6 | 6 | | | | | | | | | |
| 2 | E Ymer | 3 | 4 | | | | | | | | | | | | | | |