| Singles | |
|---|---|
| 2023 Florianópolis Challenger | |
| Champion |  Tomás Barrios Vera |
| Runner-up | Alejandro Tabilo |
| Score | 6–4, 6–4 |
Igor Marcondes was the defending champion [1] but chose not to defend his title.
Tomás Barrios Vera won the title after defeating Alejandro Tabilo 6–4, 6–4 in the final.
Tomás Barrios Vera (champion) Alejandro Tabilo (final)
Luciano Darderi (first round)
Andrea Collarini (second round) Genaro Alberto Olivieri (quarterfinals)
Thiago Seyboth Wild (second round) Alessandro Giannessi (quarterfinals) Francisco Comesaña (quarterfinals)| Semifinals | Final | ||||||||||||
| 1 | Tomás Barrios Vera | 6 | 6 | ||||||||||
| Eduardo Ribeiro | 3 | 4 | |||||||||||
| 1 | Tomás Barrios Vera | 6 | 6 | ||||||||||
| 2 | Alejandro Tabilo | 4 | 4 | ||||||||||
 Benjamin Hassan | 4 | 6 | 3 | ||||||||||
| 2 | Alejandro Tabilo | 6 | 4 | 6 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | T Barrios Vera | 6 | 6 | ||||||||||||||||||||||||
| G Heide | 4 | 4 | 1 | T Barrios Vera | 3 | 6 | 6 | ||||||||||||||||||||
| G Villanueva | 3 | 77 | 2 | Q | GI Justo | 6 | 3 | 3 | |||||||||||||||||||
| Q | Guido Iván Justo | 6 | 62 | 6 | 1 | T Barrios Vera | 6 | 77 | |||||||||||||||||||
| Q | O Luz | 6 | 6 | 5 | GA Olivieri | 3 | 64 | ||||||||||||||||||||
| Q |  I Carou | 3 | 3 | Q | O Luz | 710 | 4 | 2 | |||||||||||||||||||
 G Mpetshi Perricard | 5 | 5 | 5 | GA Olivieri | 68 | 6 | 6 | ||||||||||||||||||||
| 5 | GA Olivieri | 7 | 7 | 1 | T Barrios Vera | 6 | 6 | ||||||||||||||||||||
| 4 | A Collarini | 6 | 6 | E Ribeiro | 3 | 4 | |||||||||||||||||||||
| RA Burruchaga | 2 | 1 | 4 | A Collarini | 77 | 62 | 4 | ||||||||||||||||||||
| E Ribeiro | 6 | 5 | 6 | E Ribeiro | 63 | 77 | 6 | ||||||||||||||||||||
| V Aboian | 4 | 7 | 3 | E Ribeiro | 6 | 65 | 7 | ||||||||||||||||||||
| G Lama | 3 | 3 | WC | J Fonseca | 1 | 77 | 5 | ||||||||||||||||||||
| WC | J Fonseca | 6 | 6 | WC | J Fonseca | 3 | 6 | 6 | |||||||||||||||||||
| D Dutra da Silva | 3 | 5 | 6 | T Seyboth Wild | 6 | 3 | 4 | ||||||||||||||||||||
| 6 | T Seyboth Wild | 6 | 7 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | A Giannessi | 6 | 6 | ||||||||||||||||||||||||
| Juan Bautista Otegui | 2 | 3 | 7 | A Giannessi | 6 | 6 | |||||||||||||||||||||
| P Boscardin Dias | 6 | 6 | P Boscardin Dias | 4 | 4 | ||||||||||||||||||||||
| M Janvier | 4 | 2 | 7 | A Giannessi | 6 | 4 | 68 | ||||||||||||||||||||
| Q | P Sakamoto | 6 | 6 | B Hassan | 3 | 6 | 710 | ||||||||||||||||||||
| WC | Gustavo Ribeiro de Almeida | 0 | 4 | Q | P Sakamoto | 6 | 3 | 2 | |||||||||||||||||||
| B Hassan | 5 | 6 | 6 | B Hassan | 4 | 6 | 6 | ||||||||||||||||||||
| 3 | L Darderi | 7 | 4 | 4 | B Hassan | 4 | 6 | 3 | |||||||||||||||||||
| 8 | F Comesaña | 6 | 6 | 2 | A Tabilo | 6 | 4 | 6 | |||||||||||||||||||
| Q |  A Huertas del Pino | 4 | 0 | 8 | F Comesaña | 77 | 6 | ||||||||||||||||||||
| Q | Wilson Leite | 3 | 2 | J Pereira | 65 | 2 | |||||||||||||||||||||
| J Pereira | 6 | 6 | 8 | F Comesaña | 6 | 3 | 5 | ||||||||||||||||||||
| WC | Pedro Rodrigues | 2 | 64 | 2 | A Tabilo | 4 | 6 | 7 | |||||||||||||||||||
| M Pucinelli de Almeida | 6 | 77 | M Pucinelli de Almeida | 4 | 62 | ||||||||||||||||||||||
| G Bueno | 1 | 0 | 2 | A Tabilo | 6 | 77 | |||||||||||||||||||||
| 2 | A Tabilo | 6 | 6 | ||||||||||||||||||||||||
Nikola Milojević was the defending champion but chose not to defend his title.
Paolo Lorenzi was the defending champion but lost in the third round to Markus Eriksson.
Facundo Bagnis was the defending champion but chose not to defend his title.
Jeremy Beale and Marc Polmans were the defending champions but only Polmans chose to defend his title, partnering Evan King. Polmans lost in the first round to Marcelo Tomás Barrios Vera and Alejandro Tabilo.
Cristian Garín defeated Facundo Bagnis in the final, 6–4, 6–7(3–7), 7–5 to capture the men's singles tennis title at the 2021 Chile Open.
Hugo Dellien was the defending champion but chose not to defend his title.
Víctor Estrella Burgos was the defending champion but chose not to defend his title.
Julian Lenz and Gerald Melzer were the defending champions but chose not to defend their title.
Albert Ramos Viñolas defeated Alejandro Tabilo in the final, 4–6, 6–3, 6–4 to win the singles title at the 2022 Córdoba Open.
Sebastián Báez was the defending champion but chose not to defend his title.
Tommy Paul was the defending champion but chose not to defend his title.
This was the first edition of the tournament.
Raúl Brancaccio was the defending champion but lost in the first round to Hernán Casanova.
Alexei Popyrin defeated Stan Wawrinka in the final, 6–7(5–7), 6–3, 6–4 to win the singles tennis title at the 2023 Croatia Open Umag. It was his second ATP Tour singles title.
Juan Pablo Ficovich was the defending champion but lost in the first round to Elmar Ejupovic.
Juan Manuel Cerúndolo was the defending champion but lost in the quarterfinals to Luciano Darderi.
Genaro Alberto Olivieri was the defending champion but chose not to defend his title.
Federico Coria was the defending champion but chose not to defend his title.
Guido Andreozzi was the defending champion but lost in the first round to Keegan Smith.
Tomás Barrios Vera and Alejandro Tabilo defeated Orlando Luz and Matías Soto in the final, 6–2, 6–4 to win the doubles tennis title at the 2024 Chile Open. It was both players' first ATP doubles title.