# 2024 Curitiba Challenger – Singles

Hugo Dellien was the defending champion but retired from his first round match against José Pereira.
Jaime Faria won the title after defeating Felipe Meligeni Alves 6–4, 6–4 in the final.

## Seeds

* Camilo Ugo Carabelli (withdrew)
* Hugo Dellien (first round, retired)
* Daniel Elahi Galán (first round)
* Román Andrés Burruchaga (quarterfinals)
* Jaime Faria (champion)
* Juan Manuel Cerúndolo (semifinals)
* Henrique Rocha (first round)
* Felipe Meligeni Alves (final)
* Tomás Barrios Vera (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 |
| | Gustavo Heide | 4 | 3 | | | | |
| 5 | Jaime Faria | 6 | 6 | | | | |
| 5 | Jaime Faria | 6 | 6 | 5 | Jaime Faria | 6 | 6 |
| | | | | 8 | Felipe Meligeni Alves | 4 | 4 |
| 8 | Felipe Meligeni Alves | 6 | 6 | 8 | Felipe Meligeni Alves | 4 | 4 |
| 6 | Juan Manuel Cerúndolo | 4 | 0 | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 9 | T Barrios Vera | 6 | 6 | | | | | | | | | | | | | | | |
| Q | G Villanueva | 2 | 4 | | 9 | T Barrios Vera | 3 | 6 | 1 | | | | | | | | | |
| Q | O Luz | 4 | 4 | | | G Heide | 6 | 3 | 6 | | | | | | | | | |
| | G Heide | 6 | 6 | | | | | | | | G Heide | 6 | 6$^5$ | 6 | | | | |
| Alt | M Alves | 6 | 7$^7$ | | | | | | | Alt | M Alves | 3 | 7$^7$ | 2 | | | | |
| | G Bueno | 3 | 6$^4$ | | Alt | M Alves | 7$^7$ | 3 | 7 | | | | | | | | | |
| | Karue Sell | 6 | 6 | | | K Sell | 6$^5$ | 6 | 5 | | | | | | | | | |
| 7 | H Rocha | 4 | 0 | | | | | | | | | | | | | G Heide | 4 | 3 |
| 3 | DE Galán | 7$^7$ | 6$^2$ | 6$^8$ | | | | | | | | | | | 5 | J Faria | 6 | 6 |
| Alt | G Elias | 6$^5$ | 7$^7$ | 7$^{10}$ | Alt | G Elias | 5 | 6 | 2 | | | | | | | | | |
| | AD Vallejo | 0 | 6 | 6 | | AD Vallejo | 7 | 2 | 3$^r$ | | | | | | | | | |
| | F Mena | 6 | 0 | 3 | | | | | | Alt | G Elias | 7 | 3 | 1 | | | | |
| Q | JC Prado Ángelo | 3 | 7 | 6$^4$ | | | | | | 5 | J Faria | 5 | 6 | 6 | | | | |
| WC | M Pucinelli de Almeida | 6 | 5 | 7$^7$ | WC | M Pucinelli de Almeida | 5 | 1 | | | | | | | | | | |
| Q | Luciano Emanuel Ambrogi | 2 | 7 | 3 | 5 | J Faria | 7 | 6 | | | | | | | | | | |
| 5 | J Faria | 6 | 5 | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | F Meligeni Alves | 6 | 7$^8$ | | | | | | | | | | | | | | | |
| | P Sakamoto | 2 | 6$^6$ | | 8 | F Meligeni Alves | 7$^9$ | 4 | 6 | | | | | | | | | |
| | JP Ficovich | 6 | 6 | | | JP Ficovich | 6$^7$ | 6 | 3 | | | | | | | | | |
| | S Rodríguez Taverna | 1 | 1 | | | | | | | 8 | F Meligeni Alves | 6 | 4 | 6 | | | | |
| | H Habib | 7$^7$ | 6 | | | | | | | 4 | RA Burruchaga | 0 | 6 | 1 | | | | |
| Q | L Midón | 6$^4$ | 4 | | | H Habib | 6$^4$ | 2 | | | | | | | | | | |
| Alt | M Soto | 1 | 2 | | 4 | RA Burruchaga | 7$^7$ | 6 | | | | | | | | | | |
| 4 | RA Burruchaga | 6 | 6 | | | | | | | | | | | | 8 | F Meligeni Alves | 6 | 6 |
| 6 | JM Cerúndolo | 6 | 7 | | | | | | | | | | | | 6 | JM Cerúndolo | 4 | 0 |
| | JP Varillas | 3 | 5 | | 6 | JM Cerúndolo | 6 | 6 | | | | | | | | | | |
| | T Boyer | 6 | 6 | | | T Boyer | 4 | 4 | | | | | | | | | | |
| WC | Wilson Leite | 2 | 3 | | | | | | | 6 | JM Cerúndolo | 6 | 6 | | | | | |
| Q | JL Reis da Silva | 6$^3$ | 4 | | | | | | | | Á Guillén Meza | 3 | 4 | | | | | |
| | Á Guillén Meza | 7$^7$ | 6 | | | Á Guillén Meza | 6 | 6 | | | | | | | | | | |
| WC | J Pereira | 6 | 3 | 4 | WC | J Pereira | 1 | 1 | | | | | | | | | | |
| 2 | H Dellien | 4 | 6 | 0$^r$ | | | | | | | | | | | | | | |