| Singles | |
|---|---|
| 2023 Challenger Temuco | |
| Champion |  Aleksandar Kovacevic |
| Runner-up |  Gilbert Klier Júnior |
| Score | 4–6, 6–3, 6–3 |
Guido Andreozzi was the defending champion [1] but lost in the first round to Keegan Smith.
Aleksandar Kovacevic won the title after defeating Gilbert Klier Júnior 4–6, 6–3, 6–3 in the final.
Tomás Barrios Vera (semifinals) Alejandro Tabilo (withdrew)
Hugo Dellien (first round) Aleksandar Kovacevic (champion)
Guido Andreozzi (first round) Santiago Rodríguez Taverna (quarterfinals) Gustavo Heide (second round) Juan Pablo Ficovich (first round)| Semifinals | Final | ||||||||||||
| 1 | Tomás Barrios Vera | 4 | 3 | ||||||||||
| Gilbert Klier Júnior | 6 | 6 | |||||||||||
| Gilbert Klier Júnior | 6 | 3 | 3 | ||||||||||
| 4 | Aleksandar Kovacevic | 4 | 6 | 6 | |||||||||
| 4 | Aleksandar Kovacevic | 64 | 6 | 6 | |||||||||
 Valentin Vacherot | 77 | 0 | 3 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | T Barrios Vera | 6 | 6 | ||||||||||||||||||||||||
| WC | D Fernández Flores | 1 | 2 | 1 | T Barrios Vera | 77 | 6 | ||||||||||||||||||||
| Q | F Mena | 4 | 3 | WC | M Soto | 64 | 4 | ||||||||||||||||||||
| WC | M Soto | 6 | 6 | 1 | T Barrios Vera | 6 | 79 | ||||||||||||||||||||
| Q | G Décamps | 78 | 4 | 64 |  B Bicknell | 4 | 67 | ||||||||||||||||||||
| B Bicknell | 66 | 6 | 77 | B Bicknell | 6 | 6 | |||||||||||||||||||||
| Q | K Smith | 3 | 77 | 7 | Q | K Smith | 3 | 0 | |||||||||||||||||||
| 5 | G Andreozzi | 6 | 64 | 5 | 1 | T Barrios Vera | 4 | 3 | |||||||||||||||||||
| 3 | H Dellien | 6 | 63 | 4 | G Klier Júnior | 6 | 6 | ||||||||||||||||||||
| Q |  I Buse | 1 | 77 | 6 | Q | I Buse | 4 | 66 | |||||||||||||||||||
| Gilbert Klier Júnior | 6 | 6 | G Klier Júnior | 6 | 78 | ||||||||||||||||||||||
 B Lock | 3 | 2 | G Klier Júnior | 6 | 6 | ||||||||||||||||||||||
| WC | G Lama | 2 | 1 | P Sakamoto | 0 | 3 | |||||||||||||||||||||
| JL Reis da Silva | 6 | 6 | JL Reis da Silva | 4 | 6 | 2 | |||||||||||||||||||||
| P Sakamoto | 5 | 77 | 6 | P Sakamoto | 6 | 4 | 6 | ||||||||||||||||||||
| 8 | JP Ficovich | 7 | 65 | 4 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | S Rodríguez Taverna | 65 | 77 | 6 | |||||||||||||||||||||||
| M Alves | 77 | 65 | 4 | 6 | S Rodríguez Taverna | 3 | 710 | 6 | |||||||||||||||||||
| Alt | B Kuzuhara | 6 | 3 | 3 | M Pucinelli de Almeida | 6 | 68 | 1 | |||||||||||||||||||
| M Pucinelli de Almeida | 3 | 6 | 6 | 6 | S Rodríguez Taverna | 3 | 2 | ||||||||||||||||||||
 R Statham | 3 | 3 | 4 | A Kovacevic | 6 | 6 | |||||||||||||||||||||
| G Villanueva | 6 | 6 | G Villanueva | 4 | 65 | ||||||||||||||||||||||
| FA Gómez | 77 | 64 | 62 | 4 | A Kovacevic | 6 | 77 | ||||||||||||||||||||
| 4 | A Kovacevic | 64 | 77 | 77 | 4 | A Kovacevic | 64 | 6 | 6 | ||||||||||||||||||
| 7 | G Heide | 6 | 6 | V Vacherot | 77 | 0 | 3 | ||||||||||||||||||||
| JP Paz | 3 | 3 | 7 | G Heide | 6 | 4 | 2 | ||||||||||||||||||||
| Q | Mariano Kestelboim | 5 | 2 | V Vacherot | 1 | 6 | 6 | ||||||||||||||||||||
| V Vacherot | 7 | 6 | V Vacherot | 6 | 2 | 6 | |||||||||||||||||||||
| MF Descotte | 6 | 3 | 2 | Alt | A Ayeni | 2 | 6 | 4 | |||||||||||||||||||
| Alt | Alafia Ayeni | 4 | 6 | 6 | Alt | A Ayeni | 3 | 6 | 6 | ||||||||||||||||||
| Q |  A Andrade | 6 | 5 | 2 | LL | C Huertas del Pino | 6 | 0 | 3 | ||||||||||||||||||
| LL | C Huertas del Pino | 3 | 7 | 6 | |||||||||||||||||||||||
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