# 2019 Almaty Challenger – Singles

Denis Istomin was the defending champion but lost in the third round to Federico Coria.
Lorenzo Giustino won the title after defeating Coria 6–4, 6–4 in the final.

## Seeds

All seeds receive a bye into the second round.
* Malek Jaziri (second round)
* Denis Istomin (third round)
* Nikola Milojević (quarterfinals)
* Andrej Martin (quarterfinals)
* Lorenzo Giustino (champion)
* Yannick Hanfmann (semifinals)
* Marc Polmans (second round)
* Aleksandr Nedovyesov (quarterfinals)
* Peđa Krstin (second round)
* Santiago Giraldo (third round)
* Evgeny Karlovskiy (third round)
* Akira Santillan (second round)
* Federico Coria (final)
* Steven Diez (second round)
* Gonçalo Oliveira (third round)
* Daniel Gimeno Traver (third 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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| ITF | Alejandro Tabilo | 3 | 6 | 3 | | | | | | | | | |
| 5 | Lorenzo Giustino | 6 | 1 | 6 | | | | | | | | | |
| 5 | Lorenzo Giustino | 6 | 1 | 6 | 5 | Lorenzo Giustino | 7 | 4 | 6 | | | | |
| | | | | | | Mario Vilella Martínez | 5 | 6 | 2 | | | | |
| 3 | Nikola Milojević | 4 | 3 | | | Mario Vilella Martínez | 5 | 6 | 2 | | | | |
| | Mario Vilella Martínez | 6 | 6 | | | | | | | | | | |
| | Mario Vilella Martínez | 6 | 6 | | | | | | | 5 | Lorenzo Giustino | 6 | 6 |
| | | | | | | | | | | 13 | Federico Coria | 4 | 4 |
| 6 | Yannick Hanfmann | 6 | 4 | 7 | | | | | | | | | | 13 | Federico Coria | 4 | 4 |
| 4 | Andrej Martin | 2 | 6 | 5 | | | | | | | | | |
| 4 | Andrej Martin | 2 | 6 | 5 | 6 | Yannick Hanfmann | 5 | 4 | | | | | |
| | | | | | 13 | Federico Coria | 7 | 6 | | | | | |
| 8 | Aleksandr Nedovyesov | 6$^4$ | 4 | | 13 | Federico Coria | 7 | 6 | | | | | |
| 13 | Federico Coria | 7$^7$ | 6 | | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1 | M Jaziri | 6$^6$ | 6$^2$ | | | | | | | | | | |
| | N Kuhn | 6 | 2 | 6 | | N Kuhn | 7$^8$ | 7$^7$ | | | | | | | | | | |
| WC | A Golubev | 3 | 6 | 2 | | | | | | | N Kuhn | 0 | 6$^0$ | | | | | |
| ITF | A Tabilo | 6 | 6 | | | | | | | ITF | A Tabilo | 6 | 7$^7$ | | | | | |
| | T Brkić | 1 | 3 | | ITF | A Tabilo | 6 | 6 | | | | | | | | | | |
| | | | | | 14 | S Diez | 3 | 1 | | | | | | | | | | |
| | | | | | | | | | | | | | | ITF | A Tabilo | 3 | 6 | 3 |
| | | | | | | | | | | | | | | 5 | L Giustino | 6 | 1 | 6 |
| | | | | | 10 | S Giraldo | 2 | 6 | 6 | | | | | | | | | |
| | T-l Wu | 6 | 6 | | | T-l Wu | 6 | 3 | 2 | | | | | | | | | |
| | G Sakharov | 3 | 4 | | | | | | | 10 | S Giraldo | 1 | 3 | | | | | |
| | N Serdarušić | 6 | 6 | | | | | | | 5 | L Giustino | 6 | 6 | | | | | |
| ITF | R Bonadio | 3 | 4 | | | N Serdarušić | 6 | 3 | 2 | | | | | | | | | |
| | | | | | 5 | L Giustino | 3 | 6 | 6 | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 3 | N Milojević | 6 | 7 | | | | | | | | | | |
| | E King | 6 | 5 | 6 | | E King | 2 | 5 | | | | | | | | | | |
| | A Müller | 4 | 7 | 2 | | | | | | 3 | N Milojević | 6 | 3 | 6 | | | | |
| | MT Barrios Vera | 6 | 6 | | | | | | | 16 | D Gimeno Traver | 1 | 6 | 3 | | | | |
| ITF | K Kravchuk | 4 | 2 | | | MT Barrios Vera | 6$^7$ | 1 | | | | | | | | | | |
| | | | | | 16 | D Gimeno Traver | 7$^9$ | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 3 | N Milojević | 4 | 3 |
| | | | | | | | | | | | | | | | | M Vilella Martínez | 6 | 6 |
| | | | | | 12 | A Santillan | 6 | 3 | 6$^5$ | | | | | | | | | |
| | D Yevseyev | 3 | 6 | 4 | | M-A Hüsler | 3 | 6 | 7$^7$ | | | | | | | | | |
| | M-A Hüsler | 6 | 4 | 6 | | | | | | | M-A Hüsler | 4 | 1 | | | | | |
| | M Vilella Martínez | 6 | 6 | | | | | | | | M Vilella Martínez | 6 | 6 | | | | | |
| | G Escobar | 0 | 4 | | | M Vilella Martínez | 6 | 7$^8$ | | | | | | | | | | |
| | | | | | 7 | M Polmans | 2 | 6$^6$ | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 6 | Y Hanfmann | 7 | 6 | | | | | | | | | |
| | R Safiullin | 6 | 2 | 6 | | R Safiullin | 5 | 3 | | | | | | | | | |
| | M Purcell | 3 | 6 | 0 | | | | | 6 | Y Hanfmann | 6 | 6 | | | | | |
| WC | S Korda | 6 | 6$^0$ | 0 | | | | | | P Kotov | 2 | 4 | | | | | |
| | P Kotov | 4 | 7$^7$ | 6 | | P Kotov | 6 | 6 | | | | | | | | | |
| | | | | | 9 | P Krstin | 3 | 4 | | | | | | | | | |
| | | | | | | | | | | | | | 6 | Y Hanfmann | 6 | 4 | 7 |
| | | | | | | | | | | | | | 4 | A Martin | 2 | 6 | 5 |
| | | | | | 15 | G Oliveira | 6 | 7 | | | | | | | | | |
| Q | V Manafov | 7$^7$ | 7$^7$ | | Q | V Manafov | 4 | 5 | | | | | | | | | |
| WC | K Sultanov | 6$^2$ | 6$^3$ | | | | | | 15 | G Oliveira | 2 | 1 | | | | | |
| | A Vukic | 4 | 6 | 3 | | | | | 4 | A Martin | 6 | 6 | | | | | |
| Alt | D Wu | 6 | 2 | 6 | Alt | D Wu | 0 | 4 | | | | | | | | | |
| | | | | | 4 | A Martin | 6 | 6 | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 8 | A Nedovyesov | 6 | 6 | | | | | | | | | |
| | A Collarini | 6 | 6 | | A Collarini | 3 | 1 | | | | | | | | | |
| WC | T Skatov | 3 | 2 | | | | | | 8 | A Nedovyesov | 6 | 6 | | | | |
| ITF | S Mansouri | 3 | 4 | | | | | | 11 | E Karlovskiy | 2 | 3 | | | | |
| | A Pavić | 6 | 6 | | A Pavić | 3 | 6$^4$ | | | | | | | | | |
| | | | | 11 | E Karlovskiy | 6 | 7$^7$ | | | | | | | | | |
| | | | | | | | | | | | | | 8 | A Nedovyesov | 6$^4$ | 4 |
| | | | | | | | | | | | | | 13 | F Coria | 7$^7$ | 6 |
| | | | | 13 | F Coria | 6 | 5 | 6 | | | | | | | | |
| Q | I Gakhov | 7 | 6 | Q | I Gakhov | 4 | 7 | 4 | | | | | | | | |
| | R Cid Subervi | 5 | 1 | | | | | | 13 | F Coria | 6 | 7 | | | | |
| WC | A Lazarov | 5 | 5 | | | | | | 2 | D Istomin | 2 | 5 | | | | |
| ITF | A Zhurbin | 7 | 7 | ITF | A Zhurbin | 1 | 4 | | | | | | | | | |
| | | | | 2 | D Istomin | 6 | 6 | | | | | | | | | |