# 2018 Almaty Challenger – Singles

Filip Krajinović was the defending champion but chose not to defend his title.
Jurij Rodionov won the title after defeating Peđa Krstin 7–5, 6–2 in the final.

## Seeds

* Calvin Hemery (first round, retired)
* Yannick Hanfmann (semifinals)
* Hugo Dellien (first round)
* Sebastian Ofner (first round)
* Mohamed Safwat (first round)
* Nikola Milojević (second round)
* Nino Serdarušić (second round)
* Uladzimir Ignatik (second 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 |
| | Peđa Krstin | 6 | 6 | | | | |
| | Enrique López Pérez | 1 | 3 | | | | |
| | Enrique López Pérez | 1 | 3 | | Peđa Krstin | 5 | 2 |
| | | | | Q | Jurij Rodionov | 7 | 6 |
| Q | Jurij Rodionov | 6 | 7 | Q | Jurij Rodionov | 7 | 6 |
| 2 | Yannick Hanfmann | 4 | 5 | | | | |

### 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 |
| 1 | C Hemery | 2$^r$ | | | | | | | | | | | | | | | |
| LL | Y Takahashi | 3 | | | LL | Y Takahashi | 1 | 0 | | | | | | | | | |
| | D-h Lee | 5 | 5 | | SE | R Cid Subervi | 6 | 6 | | | | | | | | | |
| SE | R Cid Subervi | 7 | 7 | | | | | | | SE | R Cid Subervi | 2 | 7 | 3 | | | |
| | A Pavić | 6 | 6 | | | | | | | | P Krstin | 6 | 5 | 6 | | | |
| | I Nedelko | 1 | 3 | | | A Pavić | 4 | 2 | | | | | | | | | |
| | P Krstin | 6 | 6 | | | P Krstin | 6 | 6 | | | | | | | | | |
| 5 | M Safwat | 4 | 2 | | | | | | | | | | | | P Krstin | 6 | 6 |
| 4 | S Ofner | 3 | 2 | | | | | | | | | | | | E López Pérez | 1 | 3 |
| Q | R Statham | 6 | 6 | | Q | R Statham | 3 | 7$^7$ | 6$^4$ | | | | | | | | |
| WC | T Skatov | 0 | 1 | | | T-h Yang | 6 | 6$^5$ | 7$^7$ | | | | | | | | |
| | T-h Yang | 6 | 6 | | | | | | | | T-h Yang | 5 | 3 | | | | |
| | Y Uchiyama | 7 | 3 | 2 | | | | | | | E López Pérez | 7 | 6 | | | | |
| | E López Pérez | 5 | 6 | 6 | | E López Pérez | 6 | 6 | | | | | | | | | |
| | S Nagal | 7$^7$ | 4 | 1 | 8 | U Ignatik | 3 | 0 | | | | | | | | | |
| 8 | U Ignatik | 6$^3$ | 6 | 6 | | | | | | | | | | | | | |

### 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 |
| 7 | N Serdarušić | 6 | 7$^7$ | | | | | | | | | | | | | | | |
| Q | G Granollers | 3 | 6$^4$ | | 7 | N Serdarušić | 7 | 4 | 4 | | | | | | | | | |
| WC | T Khabibulin | 4 | 6 | 2 | | A Nedovyesov | 5 | 6 | 6 | | | | | | | | | |
| | A Nedovyesov | 6 | 3 | 6 | | | | | | | A Nedovyesov | 6 | 5 | 6$^4$ | | | | |
| Q | J Rodionov | 3 | 6 | 6 | | | | | | Q | J Rodionov | 3 | 7 | 7$^7$ | | | | |
| | Carlos Boluda-Purkiss | 6 | 3 | 2 | Q | J Rodionov | 6 | 7 | | | | | | | | | | |
| WC | A Avidzba | 6 | 6 | | WC | A Avidzba | 3 | 5 | | | | | | | | | | |
| 3 | H Dellien | 4 | 4 | | | | | | | | | | | | Q | J Rodionov | 6 | 7 |
| 6 | N Milojević | 6 | 6 | | | | | | | | | | | | 2 | Y Hanfmann | 4 | 5 |
| | H Casanova | 2 | 3 | | 6 | N Milojević | 2 | 6 | 1 | | | | | | | | | |
| | G Oliveira | 6 | 3 | 1 | | G Clezar | 6 | 3 | 6 | | | | | | | | | |
| | G Clezar | 3 | 6 | 6 | | | | | | | G Clezar | 3 | 2 | | | | | |
| WC | D Yevseyev | 4 | 6$^5$ | | | | | | | 2 | Y Hanfmann | 6 | 6 | | | | | |
| | D Muñoz de la Nava | 6 | 7$^7$ | | | D Muñoz de la Nava | 1 | 3 | | | | | | | | | | |
| Q | D Masur | 6$^3$ | 1 | | 2 | Y Hanfmann | 6 | 6 | | | | | | | | | | |
| 2 | Y Hanfmann | 7$^7$ | 6 | | | | | | | | | | | | | | | |