# 2025 Brasil Tennis Challenger – Singles

Camilo Ugo Carabelli was the defending champion but retired from his quarterfinals match against Román Andrés Burruchaga.
Burruchaga won the title after defeating Facundo Mena 7–6$^{(10–8)}$, 6–7$^{(6–8)}$, 7–6$^{(7–4)}$ in the second-longest Challenger final in history.

## Seeds

* Camilo Ugo Carabelli (quarterfinals, retired)
* Federico Coria (quarterfinals)
* Hugo Dellien (semifinals)
* Daniel Elahi Galán (second round)
* Felipe Meligeni Alves (first round)
* Román Andrés Burruchaga (champion)
* Gustavo Heide (semifinals)
* Murkel Dellien (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 |
| 6 | Román Andrés Burruchaga | 7 | 3 | 7$^7$ | | | | | |
| 7 | Gustavo Heide | 5 | 6 | 6$^0$ | | | | | |
| 7 | Gustavo Heide | 5 | 6 | 6$^0$ | 6 | Román Andrés Burruchaga | 7$^{10}$ | 6$^6$ | 7$^7$ |
| | | | | | | Facundo Mena | 6$^8$ | 7$^8$ | 6$^4$ |
| 3 | Hugo Dellien | 6 | 3 | 0 | | Facundo Mena | 6$^8$ | 7$^8$ | 6$^4$ |
| | Facundo Mena | 3 | 6 | 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 | Semifinals |
| 1 | C Ugo Carabelli | 6 | 6 | | | | | | | | | | | | | | | |
| WC | JL Reis da Silva | 1 | 2 | | 1 | C Ugo Carabelli | 6 | 6 | | | | | | | | | | |
| Q | L Midón | 3 | 6 | 3 | | A Collarini | 4 | 4 | | | | | | | | | | |
| | A Collarini | 6 | 0 | 6 | | | | | | 1 | C Ugo Carabelli | 5 | 5$^r$ | | | | | |
| LL | M Cecchinato | 6 | 3 | 4 | | | | | | 6 | RA Burruchaga | 7 | 4 | | | | | |
| | M Alves | 4 | 6 | 6 | | M Alves | 6$^3$ | 6 | 3 | | | | | | | | | |
| | GA Olivieri | 4 | 3 | | 6 | RA Burruchaga | 7$^7$ | 4 | 6 | | | | | | | | | |
| 6 | RA Burruchaga | 6 | 6 | | | | | | | | | | | 6 | RA Burruchaga | 7 | 3 | 7$^7$ |
| 4 | DE Galán | 7 | 4 | 6 | | | | | | | | | | 7 | G Heide | 5 | 6 | 6$^0$ |
| Q | V Aboian | 5 | 6 | 3 | 4 | DE Galán | 5 | 6$^6$ | | | | | | | | | | |
| Q | Àlex Martí Pujolràs | 3 | 7$^7$ | 1 | | C Taberner | 7 | 7$^8$ | | | | | | | | | | |
| | C Taberner | 6 | 6$^5$ | 6 | | | | | | | C Taberner | 6$^8$ | 3 | | | | | |
| | G Debru | 7$^8$ | 6 | | | | | | | 7 | G Heide | 7$^{10}$ | 6 | | | | | |
| Alt | R Olivo | 6$^6$ | 4 | | | G Debru | 3 | 3 | | | | | | | | | | |
| | M Houkes | 3 | 2 | | 7 | G Heide | 6 | 6 | | | | | | | | | | |
| 7 | G Heide | 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 |
| 8 | M Dellien | 3 | 6 | 6$^5$ | | | | | | | | | | | | | | |
| | Em Nava | 6 | 4 | 7$^7$ | | Em Nava | 6$^{13}$ | 7$^7$ | 3 | | | | | | | | | |
| | S Rodríguez Taverna | 3 | 6 | 2 | | JP Ficovich | 7$^{15}$ | 6$^2$ | 6 | | | | | | | | | |
| | JP Ficovich | 6 | 3 | 6 | | | | | | | JP Ficovich | 5 | 5 | | | | | |
| WC | P Sakamoto | 7 | 6 | | | | | | | 3 | H Dellien | 7 | 7 | | | | | |
| Q | J Schwärzler | 5 | 1 | | WC | P Sakamoto | 6$^7$ | 6 | 6$^6$ | | | | | | | | | |
| Q | M Chazal | 4 | 4 | | 3 | H Dellien | 7$^9$ | 4 | 7$^8$ | | | | | | | | | |
| 3 | H Dellien | 6 | 6 | | | | | | | | | | | 3 | H Dellien | 6 | 3 | 0 |
| 5 | F Meligeni Alves | 6 | 6$^1$ | 2 | | | | | | | | | | | F Mena | 3 | 6 | 6 |
| | F Mena | 4 | 7$^7$ | 6 | | F Mena | 6 | 7$^7$ | | | | | | | | | | |
| | A Pellegrino | 6 | 4 | 6 | | A Pellegrino | 4 | 6$^3$ | | | | | | | | | | |
| | D Dutra da Silva | 2 | 6 | 3 | | | | | | | F Mena | 7$^7$ | 6 | | | | | |
| Q | N Sánchez Izquierdo | 3 | 6 | 6 | | | | | | 2 | F Coria | 6$^2$ | 3 | | | | | |
| | JC Prado Ángelo | 6 | 3 | 4 | Q | N Sánchez Izquierdo | 3 | 5 | | | | | | | | | | |
| | JB Torres | 5 | 3 | | 2 | F Coria | 6 | 7 | | | | | | | | | | |
| 2 | F Coria | 7 | 6 | | | | | | | | | | | | | | | |