| Singles | |
|---|---|
| 2024 Cali Open | |
| Champion |  Juan Pablo Ficovich |
| Runner-up |  Gonzalo Bueno |
| Score | 6–1, 6–4 |
Federico Delbonis was the defending champion [1] but chose not to defend his title.
Juan Pablo Ficovich won the title after defeating Gonzalo Bueno 6–1, 6–4 in the final.
Thiago Agustín Tirante (second round)
Hugo Dellien (semifinals) Román Andrés Burruchaga (second round, retired) Murkel Dellien (first round) Juan Manuel Cerúndolo (second round) Facundo Mena (first round)
Enzo Couacaud (quarterfinals) Santiago Rodríguez Taverna (second round)| Semifinals | Final | ||||||||||||
| Gonzalo Bueno | 6 | 6 | |||||||||||
| Andrea Collarini | 4 | 1 | |||||||||||
| Gonzalo Bueno | 1 | 4 | |||||||||||
| Juan Pablo Ficovich | 6 | 6 | |||||||||||
| Juan Pablo Ficovich | 5 | 6 | 7 | ||||||||||
| 2 | Hugo Dellien | 7 | 1 | 5 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | TA Tirante | 6 | 6 | ||||||||||||||||||||||||
| WC |  Frazier Rengifo | 3 | 1 | 1 | TA Tirante | 4 | 6 | 3 | |||||||||||||||||||
| G Bueno | 6 | 6 | G Bueno | 6 | 3 | 6 | |||||||||||||||||||||
| R Olivo | 3 | 3 | G Bueno | 61 | 6 | 6 | |||||||||||||||||||||
| Q |  Wilson Leite | 4 | 6 | 3 | Alt | LE Ambrogi | 77 | 1 | 2 | ||||||||||||||||||
| Alt | Luciano Emanuel Ambrogi | 6 | 4 | 6 | Alt | LE Ambrogi | 6 | 3 | 79 | ||||||||||||||||||
| Alt | O Luz | 711 | 1 | 6 | Alt | O Luz | 3 | 6 | 67 | ||||||||||||||||||
| 6 | F Mena | 69 | 6 | 4 | G Bueno | 6 | 6 | ||||||||||||||||||||
| 4 | M Dellien | 2 | 2 | A Collarini | 4 | 1 | |||||||||||||||||||||
| Q | JI Londero | 6 | 6 | Q | JI Londero | 3 | 3 | ||||||||||||||||||||
| A Collarini | 6 | 7 | A Collarini | 6 | 6 | ||||||||||||||||||||||
| Alt | V Aboian | 2 | 5 | A Collarini | 6 | 6 | |||||||||||||||||||||
| G Villanueva | 3 | 5 | M Alves | 0 | 3 | ||||||||||||||||||||||
| M Alves | 6 | 7 | M Alves | 7 | 6 | ||||||||||||||||||||||
| WC | Johan Alexander Rodríguez | 4 | 2 | 8 | S Rodríguez Taverna | 5 | 4 | ||||||||||||||||||||
| 8 | S Rodríguez Taverna | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | JM Cerúndolo | 6 | 7 | ||||||||||||||||||||||||
| Q | Samuel Heredia | 2 | 5 | 5 | JM Cerúndolo | 1 | 2 | ||||||||||||||||||||
| JB Torres | 6 | 6 | JB Torres | 6 | 6 | ||||||||||||||||||||||
| JC Prado Ángelo | 3 | 1 | JB Torres | 1 | 77 | 2 | |||||||||||||||||||||
| Q |  P Bertran | 4 | 6 | 0 | JP Ficovich | 6 | 64 | 6 | |||||||||||||||||||
| JP Ficovich | 6 | 4 | 6 | JP Ficovich | 65 | 6 | 5 | ||||||||||||||||||||
| Q | JS Gómez | 2 | 1 | 3 | RA Burruchaga | 77 | 3 | 1r | |||||||||||||||||||
| 3 | RA Burruchaga | 6 | 6 | JP Ficovich | 5 | 6 | 7 | ||||||||||||||||||||
| 7 | E Couacaud | 4 | 6 | 77 | 2 | H Dellien | 7 | 1 | 5 | ||||||||||||||||||
| D Dutra da Silva | 6 | 4 | 61 | 7 | E Couacaud | 6 | 6 | ||||||||||||||||||||
| WC |  Pavlos Tsitsipas | 67 | 1 |  F Roncadelli | 4 | 2 | |||||||||||||||||||||
| F Roncadelli | 79 | 6 | 7 | E Couacaud | 63 | 5 | |||||||||||||||||||||
 Á Guillén Meza | 6 | 3 | 4 | 2 | H Dellien | 77 | 7 | ||||||||||||||||||||
| Q |  JC Aguilar | 2 | 6 | 6 | Q | JC Aguilar | 4 | 3 | |||||||||||||||||||
| Alt | J Pereira | 62 | 3 | 2 | H Dellien | 6 | 6 | ||||||||||||||||||||
| 2 | H Dellien | 77 | 6 | ||||||||||||||||||||||||
Gilles Simon was the defending champion, but lost in the second round to Tommy Haas.
Haas went to the final, but lost to Juan Mónaco 5–7, 4–6.
Juan Mónaco was the defending champion but lost to Nicolás Almagro in the quarterfinals.
Fabio Fognini defeated qualifier Federico Delbonis 4–6, 7–6(10–8), 6–2 to win his first ATP World Tour 500 event and second career title in as many weeks.
Albert Ramos Viñolas was the defending champion, but lost in the quarterfinals to Fernando Verdasco.
Martin Kližan was the defending champion, but withdrew before the tournament began.
Federico Delbonis was the defending champion but chose not to defend his title.
Gastão Elias was the defending champion but lost in the first round to Camilo Ugo Carabelli.
Víctor Estrella Burgos was the defending champion but lost in the first round to Federico Delbonis.
Gerald Melzer was the defending champion but lost in the first round to Paolo Lorenzi.
Gerald Melzer was the defending champion but lost in the first round to Federico Coria.
Laslo Đere won the title – the first of his career – defeating Félix Auger-Aliassime in the final, 6–3, 7–5. No seeded players reached the quarterfinals, and only one seed won his first-round match.
Dominic Thiem defeated Daniil Medvedev in the final, 6–4, 6–0, to win the singles title at the 2019 Barcelona Open.
Pablo Andújar was the defending champion but chose not to defend his title.
Cristian Garín was the defending champion but chose not to defend his title.
Cristian Garín was the defending champion but chose not to defend his title.
Guido Pella was the defending champion but chose not to defend his title.
Fabio Fognini was the champion in 2014, when the event was last held, but chose to compete in Dubai instead.
Rafael Nadal defeated the defending champion Novak Djokovic in the final, 7–5, 1–6, 6–3 to win the men's singles tennis title at the 2021 Italian Open. It was his record-extending tenth Italian Open title and record-equaling 36th Masters 1000 title overall. Nadal saved two match points en route to the title, in his third round match against Denis Shapovalov. This marked the fourth tournament that Nadal had won on 10 or more occasions, making him the only tennis player to do so.
Casper Ruud defeated the defending champion Diego Schwartzman in the final, 5–7, 6–2, 6–3 to win the singles title at the 2022 Argentina Open.
Daniel Elahi Galán was the defending champion but chose not to defend his title.
Sebastián Báez defeated Federico Coria in the final, 6–1, 3–6, 6–3 to win the singles tennis title at the 2023 Córdoba Open.