# 2018 Nordic Naturals Challenger – Singles

Alexander Bublik was the defending champion but chose not to defend his title.
Thanasi Kokkinakis won the title after defeating Lloyd Harris 6–2, 6–3 in the final.

## Seeds

* Thomas Fabbiano (semifinals)
* Michael Mmoh (second round)
* Quentin Halys (first round)
* Thanasi Kokkinakis (champion)
* Kevin King (first round)
* Mohamed Safwat (first round)
* Jay Clarke (second round)
* Prajnesh Gunneswaran (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 | Final | Final | Final | Final |
| 1 | Thomas Fabbiano | 5 | 1 | | | | |
| 4 | Thanasi Kokkinakis | 7 | 6 | | | | |
| 4 | Thanasi Kokkinakis | 7 | 6 | 4 | Thanasi Kokkinakis | 6 | 6 |
| | | | | | Lloyd Harris | 2 | 3 |
| | Lloyd Harris | 6 | 6 | | Lloyd Harris | 2 | 3 |
| | Christopher Eubanks | 2 | 2 | | | | |

### 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 | T Fabbiano | 6 | 7$^7$ | | | | | | | | | | | | | | | |
| | M Kecmanović | 4 | 6$^0$ | | 1 | T Fabbiano | 6 | 6 | | | | | | | | | | |
| | D Novikov | 4 | 3 | | SE | S Napolitano | 2 | 2 | | | | | | | | | | |
| SE | S Napolitano | 6 | 6 | | | | | | | 1 | T Fabbiano | 6 | 6 | | | | | |
| | T Paul | 3 | 0 | | | | | | | WC | Ma Redlicki | 2 | 2 | | | | | |
| Q | M Giron | 6 | 6 | | Q | M Giron | 3 | 4 | | | | | | | | | | |
| WC | Ma Redlicki | 7$^7$ | 6 | | WC | Ma Redlicki | 6 | 6 | | | | | | | | | | |
| 6 | M Safwat | 6$^3$ | 4 | | | | | | | | | | | | 1 | T Fabbiano | 5 | 1 |
| 4 | T Kokkinakis | 6 | 6 | | | | | | | | | | | | 4 | T Kokkinakis | 7 | 6 |
| | M Purcell | 2 | 2 | | 4 | T Kokkinakis | 7 | 6 | | | | | | | | | | |
| | S Kozlov | 4 | 1 | | | K Uchida | 5 | 0 | | | | | | | | | | |
| | K Uchida | 6 | 6 | | | | | | | 4 | T Kokkinakis | 4 | 6 | 6 | | | | |
| | JC Aragone | 7 | 7$^8$ | | | | | | | 8 | P Gunneswaran | 6 | 4 | 3 | | | | |
| Q | L Saville | 5 | 6$^6$ | | | JC Aragone | 6 | 5 | 4 | | | | | | | | | |
| WC | B Holt | 6 | 4 | 2 | 8 | P Gunneswaran | 4 | 7 | 6 | | | | | | | | | |
| 8 | P Gunneswaran | 4 | 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 | Semifinals | Semifinals | Semifinals |
| 7 | J Clarke | 6 | 2 | 6 | | | | | | | | | | |
| PR | I Marchenko | 3 | 6 | 3 | 7 | J Clarke | 6$^3$ | 4 | | | | | | |
| | L Broady | 6 | 6 | | | L Broady | 7$^7$ | 6 | | | | | | |
| | M Polmans | 3 | 4 | | | | | | L Broady | 2 | 2 | | | |
| SE | J De Loore | 6 | 6$^5$ | 6 | | | | | L Harris | 6 | 6 | | | |
| WC | U Blanch | 3 | 7$^7$ | 4 | SE | J De Loore | 2 | 0 | | | | | | |
| | L Harris | 6 | 6 | | | L Harris | 6 | 6 | | | | | | |
| 3 | Q Halys | 4 | 2 | | | | | | | | | L Harris | 6 | 6 |
| 5 | K King | 1 | 3 | | | | | | | | | C Eubanks | 2 | 2 |
| Q | A Vukic | 6 | 6 | | Q | A Vukic | 6$^6$ | 6$^1$ | | | | | | |
| | E Escobedo | 7 | 7$^8$ | | | E Escobedo | 7$^8$ | 7$^7$ | | | | | | |
| | E Gerasimov | 5 | 6$^6$ | | | | | | E Escobedo | 4 | 6$^6$ | | | |
| | C Eubanks | 6 | 6 | | | | | | C Eubanks | 6 | 7$^8$ | | | |
| Q | A Ward | 3 | 4 | | | C Eubanks | 7$^7$ | 6 | | | | | | |
| | E King | 3 | 6 | 3 | 2/WC | M Mmoh | 6$^4$ | 4 | | | | | | |
| 2/WC | M Mmoh | 6 | 3 | 6 | | | | | | | | | | |