# 2023 Zhuhai Challenger – Singles

Enrique López Pérez was the defending champion but was unable to defend his title as he was suspended from professional tennis for match fixing in 2020.
Arthur Weber won the title after defeating Jason Jung 6–3, 5–7, 6–3 in the final.

## Seeds

* Ričardas Berankis (second round)
* Jason Jung (final)
* James McCabe (first round)
* Luke Saville (first round)
* Dominik Palán (second round)
* Philip Sekulic (second round)
* Filip Peliwo (first round)
* Lý Hoàng Nam (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 | Semifinals | Final | Final | Final | Final | Final |
| | Stefanos Sakellaridis | 6 | 4 | 2 | | | | | |
| | Arthur Weber | 4 | 6 | 6 | | | | | |
| | Arthur Weber | 4 | 6 | 6 | | Arthur Weber | 6 | 5 | 6 |
| | | | | | 2 | Jason Jung | 3 | 7 | 3 |
| WC | Li Zhe | 6$^3$ | 1 | | 2 | Jason Jung | 3 | 7 | 3 |
| 2 | Jason Jung | 7$^7$ | 6 | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | R Berankis | 3 | 6 | 6 | | | | | | | | | | | | | |
| Alt | S Fomin | 6 | 0 | 3 | 1 | R Berankis | 6$^2$ | 6 | 1 | | | | | | | | |
| Q | Wang Xiaofei | 6$^4$ | 0 | | | S Sakellaridis | 7$^7$ | 3 | 6 | | | | | | | | |
| | S Sakellaridis | 7$^7$ | 6 | | | | | | | | S Sakellaridis | 6 | 7$^{10}$ | | | | |
| WC | Y Zhou | 7 | 6 | | | | | | | WC | Y Zhou | 1 | 6$^8$ | | | | |
| | A Rai | 5 | 1 | | WC | Y Zhou | 3 | 7$^8$ | 7$^7$ | | | | | | | | |
| | R Te | 3 | 7$^7$ | 4 | 6 | P Sekulic | 6 | 6$^6$ | 6$^1$ | | | | | | | | |
| 6 | P Sekulic | 6 | 6$^3$ | 6 | | | | | | | | | | S Sakellaridis | 6 | 4 | 2 |
| 4 | L Saville | 6$^5$ | 3 | | | | | | | | | | | A Weber | 4 | 6 | 6 |
| Q | Aliaksandr Liaonenka | 7$^7$ | 6 | | Q | A Liaonenka | 7$^7$ | 6 | | | | | | | | | |
| | C Sinclair | 6 | 6 | | | C Sinclair | 6$^4$ | 3 | | | | | | | | | |
| | L Borg | 3 | 2 | | | | | | | Q | A Liaonenka | 4 | 5 | | | | |
| | Y Takahashi | 6 | 4 | 0$^r$ | | | | | | | A Weber | 6 | 7 | | | | |
| Alt | A Zgirovsky | 4 | 6 | 1 | Alt | A Zgirovsky | 6$^2$ | 6$^4$ | | | | | | | | | |
| | A Weber | 6 | 6 | | | A Weber | 7$^7$ | 7$^7$ | | | | | | | | | |
| 7 | F Peliwo | 3 | 3 | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | NH Lý | 6$^4$ | 6$^2$ | | | | | | | | | | | | | | |
| | E Karlovskiy | 7$^7$ | 7$^7$ | | | E Karlovskiy | 7$^7$ | 3 | 6 | | | | | | | | |
| Q | L Castelnuovo | 6$^4$ | 7$^7$ | 7$^7$ | Q | L Castelnuovo | 6$^2$ | 6 | 1 | | | | | | | | |
| | E Zhu | 7$^7$ | 6$^5$ | 6$^4$ | | | | | | | E Karlovskiy | 3 | 3 | | | | |
| WC | Z Li | 6 | 6 | | | | | | | WC | Z Li | 6 | 6 | | | | |
| Q | Mikalai Haliak | 3 | 0 | | WC | Z Li | 4 | 6 | 6 | | | | | | | | |
| Q | H Li | 6 | 6 | | Q | H Li | 6 | 2 | 2 | | | | | | | | |
| 3 | J McCabe | 2 | 3 | | | | | | | | | | | WC | Z Li | 6$^3$ | 1 |
| 5 | Dominik Palán | 7$^7$ | 5 | 6 | | | | | | | | | | 2 | J Jung | 7$^7$ | 6 |
| Q | Shuichi Sekiguchi | 6$^0$ | 7 | 2 | 5 | D Palán | 4 | 7$^7$ | 4 | | | | | | | | |
| | R Strombachs | 6 | 3 | 6 | | R Strombachs | 6 | 6$^4$ | 6 | | | | | | | | |
| | Mu Tao | 4 | 6 | 4 | | | | | | | R Strombachs | 4 | 2 | | | | |
| | R Statham | 3 | 4 | | | | | | | 2 | J Jung | 6 | 6 | | | | |
| | F Sun | 6 | 6 | | | F Sun | 3 | 6 | 6$^4$ | | | | | | | | |
| WC | Y Bai | 2 | 3 | | 2 | J Jung | 6 | 3 | 7$^7$ | | | | | | | | |
| 2 | J Jung | 6 | 6 | | | | | | | | | | | | | | |