# 2023 Chennai Open Challenger – Singles

Corentin Moutet was the defending champion but chose not to defend his title.
Max Purcell won the title after defeating Nicolas Moreno de Alboran 5–7, 7–6$^{(7–2)}$, 6–4 in the final.

## Seeds

* Tseng Chun-hsin (second round)
* James Duckworth (quarterfinals)
* Sebastian Ofner (first round)
* Ryan Peniston (first round)
* Luca Nardi (first round)
* Francesco Maestrelli (first round)
* Dalibor Svrčina (second round)
* Dimitar Kuzmanov (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 |
| | Nicolas Moreno de Alboran | 6 | 6 | | | | |
| Q | Sumit Nagal | 4 | 2 | | | | |
| Q | Sumit Nagal | 4 | 2 | Nicolas Moreno de Alboran | 7 | 6$^2$ | 4 |
| | | | | Max Purcell | 5 | 7$^7$ | 6 |
| | Dane Sweeny | 4 | 6$^3$ | Max Purcell | 5 | 7$^7$ | 6 |
| | Max Purcell | 6 | 7$^7$ | | | | |

### 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 | C-h Tseng | 6 | 7$^8$ | | | | | | | | | | | | | | |
| | N Serdarušić | 4 | 6$^6$ | | 1 | C-h Tseng | 2 | 4 | | | | | | | | | |
| | N Moreno de Alboran | 6 | 6 | | | N Moreno de Alboran | 6 | 6 | | | | | | | | | |
| | F Ferreira Silva | 3 | 2 | | | | | | | | N Moreno de Alboran | 6 | 6 | | | | |
| PR | M Polmans | 4 | 6$^5$ | | | | | | | | Y Uchiyama | 3 | 4 | | | | |
| | Y Uchiyama | 6 | 7$^7$ | | | Y Uchiyama | 6 | 6$^{10}$ | 6 | | | | | | | | |
| Q | A Kachmazov | 2 | 3 | | 7 | D Svrčina | 1 | 7$^{12}$ | 4 | | | | | | | | |
| 7 | D Svrčina | 6 | 6 | | | | | | | | | | | | N Moreno de Alboran | 6 | 6 |
| 4 | R Peniston | 4 | 4 | | | | | | | | | | | Q | S Nagal | 4 | 2 |
| Q | S Nagal | 6 | 6 | | Q | S Nagal | 3 | 6 | 6 | | | | | | | | |
| LL | J Jung | 6 | 1 | 7$^7$ | LL | J Jung | 6 | 2 | 0 | | | | | | | | |
| | H Mayot | 3 | 6 | 6$^5$ | | | | | | Q | S Nagal | 6 | 6 | | | | |
| | J Clarke | 4 | 6 | 7$^7$ | | | | | | | J Clarke | 1 | 4 | | | | |
| WC | P Gunneswaran | 6 | 3 | 6$^4$ | | J Clarke | 3 | 6 | 6 | | | | | | | | |
| WC | R Ramanathan | 3 | 6$^3$ | | 8 | D Kuzmanov | 6 | 3 | 4 | | | | | | | | |
| 8 | D Kuzmanov | 6 | 7$^7$ | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 6 | F Maestrelli | 3 | 4 | | | | | | | | | | | | | |
| | D Sweeny | 6 | 6 | | | D Sweeny | 6 | 6 | | | | | | | | |
| Q | J McCabe | 6 | 6 | | Q | J McCabe | 2 | 1 | | | | | | | | |
| | Y-h Hsu | 1 | 4 | | | | | | | D Sweeny | 6$^5$ | 7$^{11}$ | 6 | | | |
| | NH Lý | 3 | 2 | | | | | | | A Cazaux | 7$^7$ | 6$^9$ | 3 | | | |
| | A Cazaux | 6 | 6 | | | A Cazaux | 6 | 6 | | | | | | | | |
| | S-c Hong | 6 | 6 | | | S-c Hong | 3 | 4 | | | | | | | | |
| 3 | S Ofner | 4 | 3 | | | | | | | | | | | D Sweeny | 4 | 6$^3$ |
| 5 | L Nardi | 4 | 5 | | | | | | | | | | | M Purcell | 6 | 7$^7$ |
| Q | P Nouza | 6 | 7 | | Q | P Nouza | 5 | 3 | | | | | | | | |
| Q | M Sasikumar | 2 | 2 | | | M Purcell | 7 | 6 | | | | | | | | |
| | M Purcell | 6 | 6 | | | | | | | M Purcell | 6 | 4 | 6 | | | |
| WC | L Borg | 1 | 6 | 2 | | | | | 2 | J Duckworth | 4 | 6 | 4 | | | |
| | H Međedović | 6 | 4 | 6 | | H Međedović | 2 | 6$^3$ | | | | | | | | |
| Q | C Sánchez Jover | 4 | 2 | | 2 | J Duckworth | 6 | 7$^7$ | | | | | | | | |
| 2 | J Duckworth | 6 | 6 | | | | | | | | | | | | | |