# 2018 Irving Tennis Classic – Singles

Aljaž Bedene was the defending champion but chose not to defend his title.
Mikhail Kukushkin won the title after defeating Matteo Berrettini 6–2, 3–6, 6–1 in the final.

## Seeds

* Yūichi Sugita (first round)
* Jared Donaldson (second round)
* Steve Johnson (semifinals)
* Márton Fucsovics (semifinals)
* Gilles Simon (second round)
* Maximilian Marterer (first round)
* Evgeny Donskoy (withdrew)
* Thomas Fabbiano (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 |
| Alt | Matteo Berrettini | 6 | 6 | | | | | |
| 4/WC | Márton Fucsovics | 3 | 4 | | | | | |
| 4/WC | Márton Fucsovics | 3 | 4 | Alt | Matteo Berrettini | 2 | 6 | 1 |
| | | | | | Mikhail Kukushkin | 6 | 3 | 6 |
| 3 | Steve Johnson | 4 | 6$^6$ | | Mikhail Kukushkin | 6 | 3 | 6 |
| | Mikhail Kukushkin | 6 | 7$^8$ | | | | | |

### 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 | Y Sugita | 6 | 1 | 6$^3$ | | | | | | | | | | | | | | |
| Alt | M Berrettini | 3 | 6 | 7$^7$ | Alt | M Berrettini | 3 | 6 | 6 | | | | | | | | | |
| Alt | P Krstin | 4 | 3 | | Alt | T Smyczek | 6 | 1 | 4 | | | | | | | | | |
| Alt | T Smyczek | 6 | 6 | | | | | | | Alt | M Berrettini | 6 | 6$^5$ | 6 | | | | |
| LL | J Maginley | 2 | 1 | | | | | | | | M Bašić | 4 | 7$^7$ | 1 | | | | |
| | M Bašić | 6 | 6 | | | M Bašić | 7 | 3 | 6 | | | | | | | | | |
| | R Berankis | 2 | 2 | | 5 | G Simon | 5 | 6 | 3 | | | | | | | | | |
| 5 | G Simon | 6 | 6 | | | | | | | | | | | | Alt | M Berrettini | 6 | 6 |
| 4/WC | M Fucsovics | 6 | 6 | | | | | | | | | | | | 4/WC | M Fucsovics | 3 | 4 |
| WC | P Petzschner | 4 | 2 | | 4/WC | M Fucsovics | 6 | 3 | 6 | | | | | | | | | |
| Alt | DE Galán | 2 | 6 | 3 | Alt | E Ymer | 4 | 6 | 3 | | | | | | | | | |
| Alt | E Ymer | 6 | 3 | 6 | | | | | | 4/WC | M Fucsovics | 6 | 6 | | | | | |
| Q | A Rinderknech | 3 | 7 | 6 | | | | | | Q | P Chrysochos | 3 | 3 | | | | | |
| Q | Or Ram-Harel | 6 | 5 | 4 | Q | A Rinderknech | 3 | 6 | 2 | | | | | | | | | |
| Q | P Chrysochos | 2 | 7 | 6 | Q | P Chrysochos | 6 | 4 | 6 | | | | | | | | | |
| 8/WC | T Fabbiano | 6 | 5 | 2 | | | | | | | | | | | | | | |

### 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 |
| 6 | M Marterer | 4 | 3 | | | | | | | | | | | | | | |
| WC | A de Minaur | 6 | 6 | | WC | A de Minaur | 6 | 2 | 6 | | | | | | | | |
| | M Youzhny | 3 | 6 | 7$^7$ | | M Youzhny | 2 | 6 | 2 | | | | | | | | |
| | M Ebden | 6 | 1 | 6$^4$ | | | | | | WC | A de Minaur | 2 | 2 | | | | |
| Alt | S Fanselow | 4 | 3 | | | | | | | 3 | S Johnson | 6 | 6 | | | | |
| | L Lacko | 6 | 6 | | | L Lacko | 0 | 2 | | | | | | | | | |
| Alt | S Stakhovsky | 7 | 6$^7$ | 4 | 3 | S Johnson | 6 | 6 | | | | | | | | | |
| 3 | S Johnson | 5 | 7$^9$ | 6 | | | | | | | | | | 3 | S Johnson | 4 | 6$^6$ |
| LL | T Hank | 1 | 2 | | | | | | | | | | | | M Kukushkin | 6 | 7$^8$ |
| Alt | M Mmoh | 6 | 6 | | Alt | M Mmoh | 6$^5$ | 4 | | | | | | | | | |
| Q | P Kypson | 6$^0$ | 0 | | Alt | B Fratangelo | 7$^7$ | 6 | | | | | | | | | |
| Alt | B Fratangelo | 7$^7$ | 6 | | | | | | | Alt | B Fratangelo | 3 | 3 | | | | |
| | M Kukushkin | 6$^3$ | 6 | 7 | | | | | | | M Kukushkin | 6 | 6 | | | | |
| Alt | A Krajicek | 7$^7$ | 4 | 5 | | M Kukushkin | 6 | 6 | | | | | | | | | |
| | R Albot | 4 | 6$^4$ | | 2 | J Donaldson | 3 | 3 | | | | | | | | | |
| 2 | J Donaldson | 6 | 7$^7$ | | | | | | | | | | | | | | |