# 2018 Poprad-Tatry ATP Challenger Tour – Singles

Cedrik-Marcel Stebe was the defending champion but chose not to defend his title.
Jozef Kovalík won the title after defeating Arthur De Greef 6–4, 6–0 in the final.

## Seeds

* Gerald Melzer (second round, retired)
* Casper Ruud (second round)
* Adam Pavlásek (quarterfinals)
* Jozef Kovalík (champion)
* Mohamed Safwat (quarterfinals)
* Attila Balázs (semifinals)
* Dennis Novak (quarterfinals)
* Uladzimir Ignatik (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 |
| | Zdeněk Kolář | 1 | 2 | | | | |
| 4 | Jozef Kovalík | 6 | 6 | | | | |
| 4 | Jozef Kovalík | 6 | 6 | 4 | Jozef Kovalík | 6 | 6 |
| | | | | | Arthur De Greef | 4 | 0 |
| 6 | Attila Balázs | 1 | 3 | | Arthur De Greef | 4 | 0 |
| | Arthur De Greef | 6 | 6 | | | | |

### Top half

| 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 | G Melzer | 6 | 6 | | | | | | | | | | | | | | |
| Q | Pavel Nejedlý | 2 | 2 | 1 | G Melzer | 4 | 0$^r$ | | | | | | | | | | |
| | B Rola | 4 | 3 | | Z Kolář | 6 | 0 | | | | | | | | | | |
| | Z Kolář | 6 | 6 | | | | | | | Z Kolář | 6 | 6 | | | | | |
| | A Pavić | 4 | 2 | | | | | | 7 | D Novak | 2 | 2 | | | | | |
| | M Neuchrist | 6 | 6 | | M Neuchrist | 2 | 4 | | | | | | | | | | |
| | L Rosol | 1 | 5 | 7 | D Novak | 6 | 6 | | | | | | | | | | |
| 7 | D Novak | 6 | 7 | | | | | | | | | | | | Z Kolář | 1 | 2 |
| 4 | J Kovalík | 6 | 7 | | | | | | | | | | | 4 | J Kovalík | 6 | 6 |
| | T Brkić | 4 | 5 | 4 | J Kovalík | 6 | 7 | | | | | | | | | | |
| | T-h Yang | 6 | 6 | | T-h Yang | 2 | 5 | | | | | | | | | | |
| Q | J Šátral | 4 | 2 | | | | | | 4 | J Kovalík | 6$^7$ | 7$^7$ | 6 | | | | |
| Q | A Haider-Maurer | 6 | 6 | | | | | | 5 | M Safwat | 7$^9$ | 6$^5$ | 4 | | | | |
| | Marek Jaloviec | 3 | 4 | Q | A Haider-Maurer | 5 | 6 | 4 | | | | | | | | | |
| WC | Peter Vajda | 1 | 1 | 5 | M Safwat | 7 | 1 | 6 | | | | | | | | | |
| 5 | M Safwat | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | A Balázs | 6 | 6 | | | | | | | | | | | | | |
| | M Viola | 3 | 3 | | 6 | A Balázs | 6 | 6 | | | | | | | | |
| | P Krstin | 5 | 6 | 6$^2$ | | V Šafránek | 1 | 0 | | | | | | | | |
| | V Šafránek | 7 | 4 | 7$^7$ | | | | | 6 | A Balázs | 6 | 6 | | | | |
| WC | Andrej Glváč | 4 | 6 | 6 | | | | | 3 | A Pavlásek | 2 | 4 | | | | |
| WC | Dominik Šproch | 6 | 0 | 2 | WC | A Glváč | 2 | 0 | | | | | | | | |
| Q | F Dancevic | 5 | 0$^r$ | | 3 | A Pavlásek | 6 | 6 | | | | | | | | |
| 3 | A Pavlásek | 7 | 0 | | | | | | | | | | 6 | A Balázs | 1 | 3 |
| 8 | U Ignatik | 2 | 6 | 3 | | | | | | | | | | A De Greef | 6 | 6 |
| | A De Greef | 6 | 3 | 6 | | A De Greef | 7$^7$ | 6 | | | | | | | | |
| | D Muñoz de la Nava | 2 | 4 | | | F Horanský | 6$^2$ | 3 | | | | | | | | |
| | F Horanský | 6 | 6 | | | | | | | A De Greef | 6 | 7 | | | | |
| | S Gutiérrez Ferrol | 6 | 3 | | | | | | | S Gutiérrez Ferrol | 2 | 5 | | | | |
| | M Zekić | 2 | 0$^r$ | | | S Gutiérrez Ferrol | 6 | 6 | | | | | | | | |
| WC | L Klein | 4 | 1$^r$ | | 2 | C Ruud | 4 | 1 | | | | | | | | |
| 2 | C Ruud | 6 | 1 | | | | | | | | | | | | | |