# 2023 Brasil Tennis Challenger – Singles

This was the first edition of the tournament.
Andrea Collarini won the title after defeating Tomás Barrios Vera 6–2, 7–6$^{(7–1)}$ in the final.

## Seeds

* Alejandro Tabilo (quarterfinals)
* Camilo Ugo Carabelli (semifinals)
* Juan Manuel Cerúndolo (withdrew)
* Felipe Meligeni Alves (second round)
* Renzo Olivo (semifinals)
* Facundo Díaz Acosta (withdrew)
* Matheus Pucinelli de Almeida (first round, retired)
* Genaro Alberto Olivieri (first round)
* Tomás Barrios Vera (final)

## 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 |
| | Andrea Collarini | 6 | 2 | 6 | | | | |
| 5 | Renzo Olivo | 4 | 6 | 4 | | | | |
| 5 | Renzo Olivo | 4 | 6 | 4 | | Andrea Collarini | 6 | 7$^7$ |
| | | | | | 9 | Tomás Barrios Vera | 2 | 6$^1$ |
| 9 | Tomás Barrios Vera | 6 | 2 | 6 | 9 | Tomás Barrios Vera | 2 | 6$^1$ |
| 2 | Camilo Ugo Carabelli | 2 | 6 | 4 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | A Tabilo | 6 | 6 | | | | | | | | | | | | | | |
| WC | P Boscardin Dias | 2 | 3 | | 1 | A Tabilo | 6 | 6 | | | | | | | | | |
| Q | M Dellien | 1 | 6 | 3 | | O Roca Batalla | 3 | 4 | | | | | | | | | |
| | O Roca Batalla | 6 | 4 | 6 | | | | | 1 | A Tabilo | 6$^6$ | 4 | | | | | |
| LL | C Sánchez Jover | 6 | 6 | | | | | | | A Collarini | 7$^8$ | 6 | | | | | |
| Q | Y-s Chung | 3 | 0 | | LL | C Sánchez Jover | 3 | 2 | | | | | | | | | |
| | A Collarini | 6 | 7 | | | A Collarini | 6 | 6 | | | | | | | | | |
| 8 | GA Olivieri | 3 | 5 | | | | | | | | | | | A Collarini | 6 | 2 | 6 |
| 4 | F Meligeni Alves | 6 | 6 | | | | | | | | | | 5 | R Olivo | 4 | 6 | 4 |
| | G Lama | 4 | 4 | | 4 | F Meligeni Alves | 4 | 5 | | | | | | | | | |
| Alt | T Atmane | 6 | 6 | | Alt | T Atmane | 6 | 7 | | | | | | | | | |
| LL | M Echargui | 1 | 2 | | | | | | Alt | T Atmane | 6$^2$ | 2 | | | | | |
| WC | JL Reis da Silva | 6 | 4 | 3 | | | | | 5 | R Olivo | 7$^7$ | 6 | | | | | |
| | E Zhu | 4 | 6 | 6 | | E Zhu | 4 | 3 | | | | | | | | | |
| | Timo Stodder | 4 | 3 | | 5 | R Olivo | 6 | 6 | | | | | | | | | |
| 5 | R Olivo | 6 | 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 | Semifinals |
| 9 | T Barrios Vera | 6 | 7 | | | | | | | | | | | | | | | |
| WC | E Ribeiro | 3 | 5 | | 9 | T Barrios Vera | 6 | 6 | | | | | | | | | | |
| | F Comesaña | 6 | 6 | | | F Comesaña | 3 | 1 | | | | | | | | | | |
| | M Navone | 1 | 3 | | | | | | | 9 | T Barrios Vera | 6 | 6 | | | | | |
| Q | O Prihodko | 1 | 0 | | | | | | | | H Casanova | 1 | 1 | | | | | |
| | H Casanova | 6 | 6 | | | H Casanova | 6 | 4 | 7$^7$ | | | | | | | | | |
| Alt | D Dutra da Silva | 3 | 1 | | Q | E Lavagno | 4 | 6 | 6$^5$ | | | | | | | | | |
| Q | Edoardo Lavagno | 6 | 6 | | | | | | | | | | | 9 | T Barrios Vera | 6 | 2 | 6 |
| 7 | M Pucinelli de Almeida | 6 | 0$^r$ | | | | | | | | | | | 2 | C Ugo Carabelli | 2 | 6 | 4 |
| | N Mejía | 2 | 2 | | | N Mejía | 6$^2$ | 1 | | | | | | | | | | |
| Q | T Seyboth Wild | 6 | 6 | | Q | T Seyboth Wild | 7$^7$ | 6 | | | | | | | | | | |
| | JB Torres | 2 | 2 | | | | | | | Q | T Seyboth Wild | 6$^5$ | 4 | | | | | |
| Q | Andrey Chepelev | 1 | 4 | | | | | | | 2 | C Ugo Carabelli | 7$^7$ | 6 | | | | | |
| | J de Jong | 6 | 6 | | | J de Jong | 6$^0$ | 1 | | | | | | | | | | |
| | A Giannessi | 4 | 6 | 1 | 2 | C Ugo Carabelli | 7$^7$ | 6 | | | | | | | | | | |
| 2 | C Ugo Carabelli | 6 | 3 | 6 | | | | | | | | | | | | | | |