| Singles | |
|---|---|
| 2023 Campeonato Internacional de Tênis de Campinas | |
| Champion |  Thiago Monteiro |
| Runner-up |  Camilo Ugo Carabelli |
| Score | 3–6, 6–4, 6–4 |
Jan Choinski was the defending champion [1] but lost in the second round to Andrea Pellegrino.
Thiago Monteiro won the title after defeating Camilo Ugo Carabelli 3–6, 6–4, 6–4 in the final.
Federico Coria (second round) Juan Manuel Cerúndolo (second round) Facundo Díaz Acosta (second round) Francisco Comesaña (second round, retired)
Jan Choinski (second round)
Hugo Dellien (quarterfinals) Felipe Meligeni Alves (second round) Camilo Ugo Carabelli (final)| Semifinals | Final | ||||||||||||
 Andrea Pellegrino | 2 | 1 | |||||||||||
| 8 | Camilo Ugo Carabelli | 6 | 6 | ||||||||||
| 8 | Camilo Ugo Carabelli | 6 | 4 | 4 | |||||||||
| Thiago Monteiro | 3 | 6 | 6 | ||||||||||
| Thiago Monteiro | 6 | 6 | |||||||||||
| Luciano Darderi | 2 | 1 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | F Coria | 6 | 64 | 6 | |||||||||||||||||||||||
| Q | Wilson Leite | 2 | 77 | 1 | 1 | F Coria | 3 | 6 | 3 | ||||||||||||||||||
| Q | O Luz | 6 | 6 | Q | O Luz | 6 | 3 | 6 | |||||||||||||||||||
| A Collarini | 3 | 2 | Q | O Luz | 3 | 6 | 3 | ||||||||||||||||||||
| M Trungelliti | 4 | 0r | A Pellegrino | 6 | 0 | 6 | |||||||||||||||||||||
| A Pellegrino | 6 | 1 | A Pellegrino | 6 | 3 | 6 | |||||||||||||||||||||
| Alt | JL Reis da Silva | 6 | 2 | 1 | 5 | J Choinski | 4 | 6 | 3 | ||||||||||||||||||
| 5 | J Choinski | 4 | 6 | 6 | A Pellegrino | 2 | 1 | ||||||||||||||||||||
| 4 | F Comesaña | 7 | 0 | 6 | 8 | C Ugo Carabelli | 6 | 6 | |||||||||||||||||||
 N Hardt | 5 | 6 | 2 | 4 | F Comesaña | 4r | |||||||||||||||||||||
| Q | P Sakamoto | 5 | 3 | Q | J Pereira | 3 | |||||||||||||||||||||
| Q | J Pereira | 7 | 6 | Q | J Pereira | 6 | 1 | 1 | |||||||||||||||||||
| G Andreozzi | 6 | 3 | 7 | 8 | C Ugo Carabelli | 4 | 6 | 6 | |||||||||||||||||||
| JP Ficovich | 4 | 6 | 5 | G Andreozzi | 3 | 2 | |||||||||||||||||||||
| Q | Igor Gimenez | 0 | 3 | 8 | C Ugo Carabelli | 6 | 6 | ||||||||||||||||||||
| 8 | C Ugo Carabelli | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | H Dellien | 6 | 6 | ||||||||||||||||||||||||
| WC | E Ribeiro | 1 | 3 | 6 | H Dellien | 6 | 6 | ||||||||||||||||||||
| WC | Enzo Lima | 5 | 7 | 2 | S Rodríguez Taverna | 2 | 3 | ||||||||||||||||||||
| S Rodríguez Taverna | 7 | 5 | 6 | 6 | H Dellien | 77 | 4 | 3 | |||||||||||||||||||
| SE | G Heide | 3 | 0r | T Monteiro | 65 | 6 | 6 | ||||||||||||||||||||
| T Monteiro | 6 | 1 | T Monteiro | 3 | 6 | 6 | |||||||||||||||||||||
| F Delbonis | 3 | 6 | 3 | 3 | F Díaz Acosta | 6 | 1 | 3 | |||||||||||||||||||
| 3 | F Díaz Acosta | 6 | 3 | 6 | T Monteiro | 6 | 6 | ||||||||||||||||||||
| 7 | F Meligeni Alves | 6 | 77 | L Darderi | 2 | 1 | |||||||||||||||||||||
| Q | D Dutra da Silva | 2 | 64 | 7 | F Meligeni Alves | 6 | 3 | 0 | |||||||||||||||||||
| RA Burruchaga | 4 | 6 | 6 | RA Burruchaga | 4 | 6 | 6 | ||||||||||||||||||||
| WC | Nicolas Zanellato | 6 | 4 | 2 | RA Burruchaga | 1 | 3 | ||||||||||||||||||||
| L Darderi | 6 | 6 | L Darderi | 6 | 6 | ||||||||||||||||||||||
| Alt | M Pucinelli de Almeida | 1 | 4 | L Darderi | 6 | 6 | |||||||||||||||||||||
| Alt | M Dellien | 3 | 0r | 2 | JM Cerúndolo | 2 | 4 | ||||||||||||||||||||
| 2 | JM Cerúndolo | 6 | 0 | ||||||||||||||||||||||||
This was the first edition of the tournament.
Daniel Elahi Galán was the defending champion but chose not to defend his title.
Sebastián Báez was the defending champion but chose not to defend his title.
This was the first edition of the tournament as part of the Legión Sudamericana.
Pedro Martínez defeated Sebastián Báez in the final, 4–6, 6–4, 6–4 to win the singles title at the 2022 Chile Open. It was his first ATP Tour title.
Emilio Gómez was the defending champion and successfully defended his title, defeating Nicolas Moreno de Alboran 6–7(2–7), 7–6(7–4), 7–5 in the final.
Santiago Rodríguez Taverna was the defending champion but lost in the quarterfinals to Genaro Alberto Olivieri.
Bernabé Zapata Miralles was the defending champion but chose not to defend his title.
Nicolás Jarry was the defending champion but chose not to defend his title.
Sergio Galdós and Gonçalo Oliveira were the defending champions but only Galdós chose to defend his title, partnering Renzo Olivo. Galdós lost in the semifinals to Orlando Luz and Camilo Ugo Carabelli.
Juan Pablo Varillas was the defending champion but lost in the first round to Thiago Agustín Tirante.
This was the first edition of the tournament.
Sebastián Báez was the defending champion but chose not to defend his title.
Facundo Díaz Acosta was the defending champion but lost in the final to Juan Manuel Cerúndolo.
Camilo Ugo Carabelli was the defending champion but lost in the second round to Giovanni Mpetshi Perricard.
Hugo Dellien was the defending champion but chose not to defend his title.
Camilo Ugo Carabelli was the defending champion but chose not to defend his title.
This was the first edition of the tournament.
Nicolás Jarry defeated Tomás Martín Etcheverry in the final, 6–7(5–7), 7–6(7–5), 6–2 to win the singles tennis title at the 2023 Chile Open. This was Jarry's first ATP title since 2019.
Bernabé Zapata Miralles was the defending champion but chose not to defend his title.