# 2019 Hungarian Challenger Open – Singles

Vasek Pospisil was the defending champion but chose not to defend his title.
Alexander Bublik won the title after defeating Roberto Marcora 6–0, 6–3 in the final.

## Seeds

All seeds receive a bye into the second round.
* Ramkumar Ramanathan (second round)
* Lukáš Rosol (second round)
* Jürgen Zopp (second round)
* Dennis Novak (second round, retired)
* Grégoire Barrère (second round)
* Oscar Otte (semifinals)
* Filippo Baldi (third round)
* Alexander Bublik (champion)
* Nikola Milojević (third round)
* Kimmer Coppejans (second round)
* Tallon Griekspoor (second round)
* Filip Horanský (semifinals)
* Maxime Janvier (third round)
* Viktor Galović (quarterfinals)
* Zdeněk Kolář (quarterfinals)
* Kevin Krawietz (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

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 15 | Zdeněk Kolář | 6 | 3 | 2 | | | | | | | | |
| | Roberto Marcora | 2 | 6 | 6 | | | | | | | | |
| | Roberto Marcora | 2 | 6 | 6 | | Roberto Marcora | 6 | 7$^7$ | | | | |
| | | | | | 6 | Oscar Otte | 4 | 6$^3$ | | | | |
| | Mathias Bourgue | 3 | 3 | | 6 | Oscar Otte | 4 | 6$^3$ | | | | |
| 6 | Oscar Otte | 6 | 6 | | | | | | | | | |
| 6 | Oscar Otte | 6 | 6 | | | | | | | Roberto Marcora | 0 | 3 |
| | | | | | | | | | 8 | Alexander Bublik | 6 | 6 |
| 12 | Filip Horanský | 6 | 7$^8$ | | | | | | | | | | 8 | Alexander Bublik | 6 | 6 |
| WC | Alex Molčan | 4 | 6$^6$ | | | | | | | | | |
| WC | Alex Molčan | 4 | 6$^6$ | | 12 | Filip Horanský | 3 | 0 | | | | |
| | | | | | 8 | Alexander Bublik | 6 | 6 | | | | |
| 8 | Alexander Bublik | 3 | 6 | 6 | 8 | Alexander Bublik | 6 | 6 | | | | |
| 14 | Viktor Galović | 6 | 3 | 4 | | | | | | | | |

### Top half
#### Section 1

| 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 | Quarterfinals |
| | | | | 1 | R Ramanathan | 6$^4$ | 5 | | | | | | | | | | | |
| | U Ignatik | 6 | 7 | | U Ignatik | 7$^7$ | 7 | | | | | | | | | | | |
| LL | A Bega | 4 | 5 | | | | | | | U Ignatik | 4 | 7 | 5 | | | | | |
| PR | M Przysiężny | 2 | 4 | | | | | | 15 | Z Kolář | 6 | 5 | 7 | | | | | |
| WC | Z Piros | 6 | 6 | WC | Z Piros | 7$^7$ | 1 | 2 | | | | | | | | | | |
| | | | | 15 | Z Kolář | 6$^2$ | 6 | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | 15 | Z Kolář | 6 | 3 | 2 |
| | | | | | | | | | | | | | | | R Marcora | 2 | 6 | 6 |
| | | | | 11 | T Griekspoor | 6 | 6$^5$ | 6$^2$ | | | | | | | | | | |
| | N Gombos | 7$^9$ | 6 | | N Gombos | 4 | 7$^7$ | 7$^7$ | | | | | | | | | | |
| ITF | A Karatsev | 6$^7$ | 2 | | | | | | | N Gombos | 3 | 4 | | | | | | |
| | R Marcora | 6 | 6 | | | | | | | R Marcora | 6 | 6 | | | | | | |
| WC | P Nagy | 2 | 1 | | R Marcora | 7$^7$ | 6 | | | | | | | | | | | |
| | | | | 5/SE | G Barrère | 6$^2$ | 3 | | | | | | | | | | | |

#### 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 | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 3 | J Zopp | 3 | 1 | | | | | | | | | |
| | A Basso | 3 | 6$^0$ | | | M Bourgue | 6 | 6 | | | | | | | | | |
| | M Bourgue | 6 | 7$^7$ | | | | | | | | M Bourgue | 6 | 6 | | | | |
| ITF | Baptiste Crepatte | 6 | 7 | | | | | | | ITF | B Crepatte | 3 | 2 | | | | |
| | TK Wang | 3 | 5 | | ITF | B Crepatte | 5 | 6 | 6 | | | | | | | | |
| | | | | | 16 | K Krawietz | 7 | 4 | 3 | | | | | | | | |
| | | | | | | | | | | | | | | | M Bourgue | 3 | 3 |
| | | | | | | | | | | | | | | 6 | O Otte | 6 | 6 |
| | | | | | 9 | N Milojević | 6 | 6$^1$ | 6 | | | | | | | | |
| | D Masur | 2 | 6 | 4 | | S Griekspoor | 4 | 7$^7$ | 4 | | | | | | | | |
| | S Griekspoor | 6 | 3 | 6 | | | | | | 9 | N Milojević | 3 | 4 | | | | |
| Q | D Szintai | 3 | 4 | | | | | | | 6 | O Otte | 6 | 6 | | | | |
| | D Petrović | 6 | 6 | | | D Petrović | 6$^2$ | 6 | 6$^5$ | | | | | | | | |
| | | | | | 6 | O Otte | 7$^7$ | 3 | 7$^7$ | | | | | | | | |

### Bottom half
#### Section 3

| 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 |
| | | | | | 7 | F Baldi | 4 | 6 | 6 | | | | | | | | | |
| Alt | H Grenier | 2 | 4 | | | A Müller | 6 | 3 | 4 | | | | | | | | | |
| | A Müller | 6 | 6 | | | | | | | 7 | F Baldi | 6 | 2 | 1 | | | | |
| | L Miedler | 6 | 6 | | | | | | | 12 | F Horanský | 3 | 6 | 6 | | | | |
| WC | G Borsos | 1 | 4 | | | L Miedler | 2 | 6$^4$ | | | | | | | | | | |
| | | | | | 12 | F Horanský | 6 | 7$^7$ | | | | | | | | | | |
| | | | | | | | | | | | | | | | 12 | F Horanský | 6 | 7$^8$ |
| | | | | | | | | | | | | | | | WC | A Molčan | 4 | 6$^6$ |
| | | | | | 13 | M Janvier | 7$^7$ | 3 | 6 | | | | | | | | | |
| | N Serdarušić | 2 | 2 | | | V Durasovic | 6$^0$ | 6 | 3 | | | | | | | | | |
| | V Durasovic | 6 | 6 | | | | | | | 13 | M Janvier | 2 | 4 | | | | | |
| WC | A Molčan | 5 | 7 | 7$^7$ | | | | | | WC | A Molčan | 6 | 6 | | | | | |
| ITF | Peter Heller | 7 | 5 | 6$^1$ | WC | A Molčan | 6 | 3 | | | | | | | | | | |
| | | | | | 4 | D Novak | 2 | 0$^r$ | | | | | | | | | | |

#### Section 4

| 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 | Quarterfinals |
| | | | | | 8 | A Bublik | 6 | 7 | | | | | | | | | | | |
| Q | S Diez | 6 | 6 | | Q | S Diez | 1 | 5 | | | | | | | | | | | |
| ITF | R Bonadio | 4 | 2 | | | | | | | 8 | A Bublik | 6$^5$ | 6 | 6 | | | | | |
| | P Kotov | 1 | 6 | 6 | | | | | | | P Kotov | 7$^7$ | 2 | 2 | | | | | |
| | M Viola | 6 | 4 | 3 | | P Kotov | 6 | 2 | 6 | | | | | | | | | | |
| | | | | | 10 | K Coppejans | 4 | 6 | 3 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 8 | A Bublik | 3 | 6 | 6 |
| | | | | | | | | | | | | | | | 14 | V Galović | 6 | 3 | 4 |
| | | | | | 14 | V Galović | 7$^7$ | 6 | | | | | | | | | | | |
| | E Benchetrit | 5 | 0 | | Alt | S Doumbia | 6$^5$ | 2 | | | | | | | | | | | |
| Alt | S Doumbia | 7 | 6 | | | | | | | 14 | V Galović | 7$^7$ | 5 | 6 | | | | | |
| | B Zapata Miralles | 6 | 6 | | | | | | | | B Zapata Miralles | 6$^4$ | 7 | 2 | | | | | |
| | M-A Hüsler | 1 | 3 | | | B Zapata Miralles | 6 | 7 | | | | | | | | | | | |
| | | | | | 2 | L Rosol | 3 | 5 | | | | | | | | | | | |