# 2023 Antofagasta Challenger – Singles

This was the first edition of the tournament.
Camilo Ugo Carabelli won the title after defeating Tristan Boyer 3–6, 6–1, 7–5 in the final.

## Seeds

* Juan Manuel Cerúndolo (second round)
* Tomás Barrios Vera (first round)
* Alejandro Tabilo (first round)
* Genaro Alberto Olivieri (first round)
* Hugo Dellien (second round)
* Facundo Bagnis (second round, retired)
* Francisco Comesaña (quarterfinals)
* Luciano Darderi (semifinals)

## 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 | Final |
| | Camilo Ugo Carabelli | 6 | 6 | | | | | |
| | Román Andrés Burruchaga | 4 | 4 | | | | | |
| | Román Andrés Burruchaga | 4 | 4 | | Camilo Ugo Carabelli | 3 | 6 | 7 |
| | | | | Alt | Tristan Boyer | 6 | 1 | 5 |
| Alt | Tristan Boyer | 6 | 7 | Alt | Tristan Boyer | 6 | 1 | 5 |
| 8 | Luciano Darderi | 3 | 5 | | | | | |

### 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 |
| 1 | JM Cerúndolo | 6 | 6 | | | | | | | | | | | | | |
| Alt | V Durasovic | 3 | 3 | | 1 | JM Cerúndolo | 6$^5$ | 6 | 2 | | | | | | | |
| Q | Tomás Farjat | 1 | 0 | | | C Ugo Carabelli | 7$^7$ | 3 | 6 | | | | | | | |
| | C Ugo Carabelli | 6 | 6 | | | | | | | | C Ugo Carabelli | 7$^7$ | 6 | | | |
| | M Pucinelli de Almeida | 6 | 2 | 6 | | | | | | | M Pucinelli de Almeida | 6$^5$ | 2 | | | |
| | AD Vallejo | 2 | 6 | 1 | | M Pucinelli de Almeida | 4 | 6 | 2 | | | | | | | |
| Q | Ignacio Monzón | 6 | 1 | 3 | 6 | F Bagnis | 6 | 0 | 0$^r$ | | | | | | | |
| 6 | F Bagnis | 4 | 6 | 6 | | | | | | | | | | C Ugo Carabelli | 6 | 6 |
| 4 | GA Olivieri | 7$^8$ | 4 | 4 | | | | | | | | | | RA Burruchaga | 4 | 4 |
| Q | F Mena | 6$^6$ | 6 | 6 | Q | F Mena | 4 | 6 | 3 | | | | | | | |
| | RA Burruchaga | 1 | 6 | 4 | | RA Burruchaga | 6 | 1 | 6 | | | | | | | |
| | S Rodríguez Taverna | 6 | 4 | 1$^r$ | | | | | | | RA Burruchaga | 6 | 6 | | | |
| | M Dellien | 6 | 6 | | | | | | | 7 | F Comesaña | 3 | 4 | | | |
| | R Olivo | 3 | 3 | | | M Dellien | 4 | 6$^3$ | | | | | | | | |
| Q | P Sakamoto | 6 | 5 | 4 | 7 | F Comesaña | 6 | 7$^7$ | | | | | | | | |
| 7 | F Comesaña | 0 | 7 | 6 | | | | | | | | | | | | |

### 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 |
| 5 | H Dellien | 6 | 6 | | | | | | | | | | | | | | |
| Q | Gilbert Klier Júnior | 2 | 0 | | 5 | H Dellien | 6 | 6$^4$ | 5 | | | | | | | | |
| | A Collarini | 6$^5$ | 2 | | | JL Reis da Silva | 3 | 7$^7$ | 7 | | | | | | | | |
| | JL Reis da Silva | 7$^7$ | 6 | | | | | | | | JL Reis da Silva | 6$^6$ | 2 | | | | |
| | M Navone | 3 | 6$^5$ | | | | | | | Alt | T Boyer | 7$^8$ | 6 | | | | |
| | G Heide | 6 | 7$^7$ | | | G Heide | 4 | 6 | 4 | | | | | | | | |
| Alt | T Boyer | 6 | 1 | 7$^{11}$ | Alt | T Boyer | 6 | 3 | 6 | | | | | | | | |
| 3 | A Tabilo | 3 | 6 | 6$^9$ | | | | | | | | | | Alt | T Boyer | 6 | 7 |
| 8 | L Darderi | 6 | 7$^7$ | | | | | | | | | | | 8 | L Darderi | 3 | 5 |
| WC | M Soto | 3 | 6$^4$ | | 8 | L Darderi | 6 | 6 | | | | | | | | | |
| Alt | E Ribeiro | 6 | 6 | | Alt | E Ribeiro | 3 | 2 | | | | | | | | | |
| WC | JC Prado Ángelo | 3 | 4 | | | | | | | 8 | L Darderi | 6 | 6 | | | | |
| | M Janvier | 4 | 6 | 6$^6$ | | | | | | WC | G Lama | 1 | 3 | | | | |
| WC | G Lama | 6 | 1 | 7$^8$ | WC | G Lama | 6 | 7$^7$ | | | | | | | | | |
| Q | P Boscardin Dias | 6 | 6 | | Q | P Boscardin Dias | 1 | 6$^3$ | | | | | | | | | |
| 2 | T Barrios Vera | 1 | 1 | | | | | | | | | | | | | | |