# 2024 Antofagasta Challenger – Singles

Camilo Ugo Carabelli was the defending champion but lost in the second round to Juan Ignacio Londero.
Juan Manuel Cerúndolo won the title after defeating Daniel Vallejo 3–6, 6–2, 6–4 in the final.

## Seeds

* Camilo Ugo Carabelli (second round)
* Hugo Dellien (second round)
* Jesper de Jong (semifinals)
* Gustavo Heide (quarterfinals)
* Felipe Meligeni Alves (withdrew)
* Murkel Dellien (quarterfinals)
* Facundo Mena (second round)
* Juan Manuel Cerúndolo (champion)

## 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 |
| 8 | Juan Manuel Cerúndolo | 6 | 6 | | | | | |
| | Andrea Collarini | 3 | 2 | | | | | |
| | Andrea Collarini | 3 | 2 | 8 | Juan Manuel Cerúndolo | 3 | 6 | 6 |
| | | | | | Daniel Vallejo | 6 | 2 | 4 |
| 3 | Jesper de Jong | 2 | 4 | | Daniel Vallejo | 6 | 2 | 4 |
| | Daniel Vallejo | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | C Ugo Carabelli | 7$^7$ | 6$^5$ | 7$^7$ | | | | | | | | | | | | | | |
| | Á Guillén Meza | 6$^4$ | 7$^7$ | 6$^1$ | 1 | C Ugo Carabelli | 4 | 6 | 3 | | | | | | | | | |
| Q | Leonardo Aboian | 3 | 5 | | WC | JI Londero | 6 | 2 | 6 | | | | | | | | | |
| WC | JI Londero | 6 | 7 | | | | | | | WC | JI Londero | 2 | 4 | | | | | |
| | JP Ficovich | 0 | 3 | | | | | | | 8 | JM Cerúndolo | 6 | 6 | | | | | |
| | M Soto | 6 | 6 | | | M Soto | 6$^5$ | 4 | | | | | | | | | | |
| Q | J Pereira | 4 | 4 | | 8 | JM Cerúndolo | 7$^7$ | 6 | | | | | | | | | | |
| 8 | JM Cerúndolo | 6 | 6 | | | | | | | | | | | | 8 | JM Cerúndolo | 6 | 6 |
| 4 | G Heide | 6 | 6 | | | | | | | | | | | | | A Collarini | 3 | 2 |
| Q | V Aboian | 1 | 4 | | 4 | G Heide | 6 | 6 | | | | | | | | | | |
| Q | Alex Barrena | 6$^3$ | 7$^7$ | 1 | Alt | O Luz | 2 | 1 | | | | | | | | | | |
| Alt | O Luz | 7$^7$ | 6$^5$ | 6 | | | | | | 4 | G Heide | 3 | 6 | 1 | | | | |
| | M Pucinelli de Almeida | 6 | 6 | | | | | | | | A Collarini | 6 | 1 | 6 | | | | |
| WC | Daniel Antonio Núñez | 2 | 0 | | | M Pucinelli de Almeida | 6 | 3 | 3 | | | | | | | | | |
| | A Collarini | 6 | 6 | | | A Collarini | 3 | 6 | 6 | | | | | | | | | |
| LL | Wilson Leite | 2 | 3 | | | | | | | | | | | | | | | |

### 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 | Semifinals |
| 6 | M Dellien | 5 | 6 | 2 | | | | | | | | | | | | | |
| LL | Edoardo Lavagno | 7 | 3 | 0$^r$ | 6 | M Dellien | 7 | 6 | | | | | | | | | |
| | JL Reis da Silva | 5 | 1 | | | F Roncadelli | 5 | 2 | | | | | | | | | |
| | F Roncadelli | 7 | 6 | | | | | | 6 | M Dellien | 4 | 2 | | | | | |
| Q | Tomás Farjat | 1 | 2 | | | | | | 3 | J de Jong | 6 | 6 | | | | | |
| | Karue Sell | 6 | 6 | | | K Sell | 3 | 3 | | | | | | | | | |
| | E Couacaud | 1 | 5 | | 3 | J de Jong | 6 | 6 | | | | | | | | | |
| 3 | J de Jong | 6 | 7 | | | | | | | | | | | 3 | J de Jong | 2 | 4 |
| 7 | F Mena | 6 | 6 | | | | | | | | | | | | AD Vallejo | 6 | 6 |
| Alt | D Dutra da Silva | 2 | 1 | | 7 | F Mena | 6$^5$ | 4 | | | | | | | | | |
| Q | Luciano Emanuel Ambrogi | 6 | 6 | | Q | LE Ambrogi | 7$^7$ | 6 | | | | | | | | | |
| WC | Ignacio Becerra | 3 | 1 | | | | | | Q | LE Ambrogi | 4 | 6 | 1 | | | | |
| | AD Vallejo | 6 | 6 | | | | | | | AD Vallejo | 6 | 2 | 6 | | | | |
| Alt | G Villanueva | 2 | 4 | | | AD Vallejo | 6 | 6 | | | | | | | | | |
| | M Alves | 3 | 4 | | 2 | H Dellien | 3 | 2 | | | | | | | | | |
| 2 | H Dellien | 6 | 6 | | | | | | | | | | | | | | |