# 2019 ATP Challenger China International – Nanchang – Singles

Quentin Halys was the defending champion but chose not to defend his title.
Andrej Martin won the title after defeating Jordan Thompson 6–4, 1–6, 6–3 in the final.

## Seeds

All seeds receive a bye into the second round.
* Jordan Thompson (final)
* Prajnesh Gunneswaran (withdrew)
* Alex Bolt (second round)
* Ramkumar Ramanathan (semifinals)
* James Duckworth (third round)
* Jason Kubler (second round)
* Nikola Milojević (semifinals)
* Enrique López Pérez (third round)
* Aleksandr Nedovyesov (second round)
* Maxime Janvier (second round, retired)
* Go Soeda (quarterfinals)
* Jay Clarke (third round)
* Adam Pavlásek (third round)
* Lee Duck-hee (second round)
* Uladzimir Ignatik (second round)
* Kaichi Uchida (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 | Final | Final | Final | Final | Final |
| 1 | Jordan Thompson | 6$^4$ | 6 | 6 | | | | | | | | | |
| 11 | Go Soeda | 7$^7$ | 4 | 3 | | | | | | | | | |
| 11 | Go Soeda | 7$^7$ | 4 | 3 | 1 | Jordan Thompson | 7$^7$ | 6 | | | | | |
| | | | | | 4 | Ramkumar Ramanathan | 6$^2$ | 3 | | | | | |
| 4 | Ramkumar Ramanathan | 6 | 6 | | 4 | Ramkumar Ramanathan | 6$^2$ | 3 | | | | | |
| | Zhang Zhizhen | 3 | 0 | | | | | | | | | | |
| | Zhang Zhizhen | 3 | 0 | | | | | | 1 | Jordan Thompson | 4 | 6 | 3 |
| | | | | | | | | | | Andrej Martin | 6 | 1 | 6 |
| Alt | Ben Patael | 2 | 5 | | | | | | | | | | | Andrej Martin | 6 | 1 | 6 |
| | Andrej Martin | 6 | 7 | | | | | | | | | | |
| | Andrej Martin | 6 | 7 | | | Andrej Martin | 6 | 6 | | | | | |
| | | | | | 7 | Nikola Milojević | 0 | 4 | | | | | |
| 7 | Nikola Milojević | 6 | 4 | 6 | 7 | Nikola Milojević | 0 | 4 | | | | | |
| | Andrew Harris | 2 | 6 | 0 | | | | | | | | | |

### 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 | J Thompson | 6 | 4 | 6 | | | | | | | | | |
| | L Saville | 3 | 4 | | ITF | J Grills | 3 | 6 | 1 | | | | | | | | | |
| ITF | Jacob Grills | 6 | 6 | | | | | | | 1 | J Thompson | 6 | 6 | | | | | |
| Q | Wu Hao | 6 | 1 | 3 | | | | | | | V Šafránek | 2 | 1 | | | | | |
| | V Šafránek | 3 | 6 | 6 | | V Šafránek | 7$^8$ | 6 | | | | | | | | | | |
| | | | | | 15 | U Ignatik | 6$^6$ | 4 | | | | | | | | | | |
| | | | | | | | | | | | | | | 1 | J Thompson | 6$^4$ | 6 | 6 |
| | | | | | | | | | | | | | | 11 | G Soeda | 7$^7$ | 4 | 3 |
| | | | | | 11 | G Soeda | 6 | 6 | | | | | | | | | | |
| ITF | Y Bai | 6 | 2 | 6$^4$ | | S Balaji | 4 | 4 | | | | | | | | | | |
| | S Balaji | 2 | 6 | 7$^7$ | | | | | | 11 | G Soeda | 7 | 6 | | | | | |
| | D Wu | 6 | 6 | | | | | | | 5 | J Duckworth | 5 | 1 | | | | | |
| WC | J Cui | 1 | 2 | | | D Wu | 6$^9$ | 3 | | | | | | | | | | |
| | | | | | 5 | J Duckworth | 7$^{11}$ | 6 | | | | | | | | | | |

#### Section 2

| 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 |
| | | | | 4 | R Ramanathan | 6 | 6 | | | | | | | | | |
| WC | F Sun | 4 | 4 | WC | R Te | 3 | 2 | | | | | | | | | |
| WC | R Te | 6 | 6 | | | | | | 4 | R Ramanathan | 6 | 6 | | | | |
| | Xia Zihao | 2 | 5 | | | | | | 16 | K Uchida | 2 | 3 | | | | |
| ITF | T Gabashvili | 6 | 7 | ITF | T Gabashvili | 4 | 6 | 3 | | | | | | | | |
| | | | | 16 | K Uchida | 6 | 2 | 6 | | | | | | | | |
| | | | | | | | | | | | | | 4 | R Ramanathan | 6 | 6 |
| | | | | | | | | | | | | | | Zh Zhang | 3 | 0 |
| | | | | 10 | M Janvier | 6$^5$ | 1$^r$ | | | | | | | | | |
| | S Myneni | 4 | 4 | | Zh Zhang | 7$^7$ | 2 | | | | | | | | | |
| | Zh Zhang | 6 | 6 | | | | | | | Zh Zhang | 6 | 6 | | | | |
| | T-l Wu | 3 | 2 | | | | | | 8 | E López Pérez | 2 | 4 | | | | |
| | Makoto Ochi | 6 | 6 | | M Ochi | 3 | 0 | | | | | | | | | |
| | | | | 8 | E López Pérez | 6 | 6 | | | | | | | | | |

### Bottom half
#### Section 3

| 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 |
| | | | | 6 | J Kubler | 1 | 6 | 5 | | | | | | | | |
| Alt | B Patael | 6 | 6 | Alt | B Patael | 6 | 4 | 7 | | | | | | | | |
| WC | X Gao | 1 | 4 | | | | | | Alt | B Patael | 6 | 7 | | | | |
| WC | Y He | 6$^2$ | 2 | | | | | | 12 | J Clarke | 3 | 5 | | | | |
| | M Purcell | 7$^7$ | 6 | | M Purcell | 6$^2$ | 3 | | | | | | | | | |
| | | | | 12 | J Clarke | 7$^7$ | 6 | | | | | | | | | |
| | | | | | | | | | | | | | Alt | B Patael | 2 | 5 |
| | | | | | | | | | | | | | | A Martin | 6 | 7 |
| | | | | 14 | D-h Lee | 3 | 2 | | | | | | | | | |
| | G Oliveira | 6 | 6 | | G Oliveira | 6 | 6 | | | | | | | | | |
| | M Banes | 4 | 3 | | | | | | | G Oliveira | 4 | 2 | | | | |
| | A Martin | 6 | 6 | | | | | | | A Martin | 6 | 6 | | | | |
| | T Lamasine | 2 | 2 | | A Martin | 6 | 6 | | | | | | | | | |
| | | | | 3 | A Bolt | 2 | 4 | | | | | | | | | |

#### 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 | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 7 | N Milojević | 6 | 6 | | | | | | | | | | | |
| | S Mukund | 6 | 3 | | S Mukund | 2 | 4 | | | | | | | | | | | |
| | Renta Tokuda | 1 | 1$^r$ | | | | | | 7 | N Milojević | 7$^7$ | 7$^7$ | | | | | | |
| | A Santillan | 6 | 6 | | | | | | | A Santillan | 6$^2$ | 6$^5$ | | | | | | |
| | Lo Chien-hsun | 1 | 2 | | A Santillan | 6 | 4 | 7 | | | | | | | | | | |
| | | | | 9 | A Nedovyesov | 4 | 6 | 5 | | | | | | | | | | |
| | | | | | | | | | | | | | | 7 | N Milojević | 6 | 4 | 6 |
| | | | | | | | | | | | | | | | A Harris | 2 | 6 | 0 |
| | | | | 13 | A Pavlásek | 6 | 6 | | | | | | | | | | | |
| ITF | R Noguchi | 4 | 3 | | Y-s Chung | 3 | 2 | | | | | | | | | | | |
| | Y-s Chung | 6 | 6 | | | | | | 13 | A Pavlásek | 3 | 6 | 3 | | | | | |
| Q | L Margaroli | 1 | 2 | | | | | | | A Harris | 6 | 4 | 6 | | | | | |
| | A Harris | 6 | 6 | | A Harris | 6 | 6 | | | | | | | | | | | |
| | | | | Alt | V Vardhan | 2 | 3 | | | | | | | | | | | |