| 2018 Challenger de Buenos Aires | |
|---|---|
| Date | 12–18 November |
| Edition | 8th |
| Surface | Clay |
| Location | Buenos Aires, Argentina |
| Champions | |
| Singles | |
 Pablo Andújar | |
| Doubles | |
 Guido Andreozzi / Guillermo Durán | |
The 2018 Challenger de Buenos Aires was a professional tennis tournament played on clay courts. It was the eighth edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 12 and 18 November 2018.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| ARG | Guido Andreozzi | 82 | 1 |
| ESP | Pablo Andújar | 101 | 2 |
 BRA | Thiago Monteiro | 112 | 3 |
 POR | Pedro Sousa | 114 | 4 |
 BOL | Hugo Dellien | 117 | 5 |
| ARG | Carlos Berlocq | 127 | 6 |
 ITA | Gianluigi Quinzi | 149 | 7 |
| ARG | Facundo Bagnis | 150 | 8 |
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
Federico Coria Orlando Luz 
Bastián Malla Gonzalo Villanueva Pablo Andújar def. Pedro Cachin 6–3, 6–1. Guido Andreozzi / Guillermo Durán def. Marcelo Demoliner / Andrés Molteni 6–4, 4–6, [10–3].The 2010 Copa Petrobras Buenos Aires was a professional tennis tournament played on red clay courts. It was the seventh edition of the tournament which was part of the 2010 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 4 and 11 October 2010.
The 2010 Copa Topper was a professional tennis tournament played on outdoor red clay courts. It was the first edition of the tournament which was part of the 2010 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 22 and 28 November 2010.
The 2011 Copa Topper was a professional tennis tournament played on clay courts. It was the eighth edition of the tournament which is part of the 2011 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 7 and 13 November 2011.
The 2013 Copa Topper was a professional tennis tournament played on clay courts. It was the fourth edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 21 and 27 October 2013.
The 2016 Copa Fila was a professional tennis tournament played on clay courts. It was the sixth edition of the tournament which was part of the 2016 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 10 and 16 October 2016.
The 2017 Copa Fila was a professional tennis tournament played on clay courts. It was the seventh edition of the tournament which was part of the 2017 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 9 and 15 October 2017.
The 2018 Argentina Open was a men's tennis tournament played on outdoor clay courts. It was the 21st edition of the ATP Buenos Aires event, and part of the ATP World Tour 250 series of the 2018 ATP World Tour. It took place in Buenos Aires, Argentina, from February 12 through 18, 2018.
The 2018 Internazionali di Tennis Country 2001 Team was a professional tennis tournament played on clay court. It was the 1st edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Padua, Italy between 23 and 29 July 2018.
The 2018 Svijany Open was a professional tennis tournament played on clay courts. It was the 6th edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Liberec, Czech Republic between 30 July and 5 August 2018.
The 2018 AON Open Challenger was a professional tennis tournament played on clay courts. It was the sixteenth edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Genoa, Italy between 4 and 9 September 2018.
The 2018 Lima Challenger was a professional tennis tournament played on clay courts. It was the twelfth edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Lima, Peru between October 22 and October 27, 2018.
The 2019 Tunis Open was a professional tennis tournament played on clay courts. It was the eleventh edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Tunis, Tunisia between 15 and 21 April 2019.
The 2019 Challenger de Buenos Aires was a professional tennis tournament played on clay courts. It was the ninth edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 23 and 29 September 2019.
The 2020 Chile Open was a men's tennis tournament played on outdoor clay courts. It was the 22nd edition of the Chile Open, and part of the ATP 250 of the 2020 ATP Tour. It took place in Santiago, Chile from 24 February through 1 March 2020. Unseeded Thiago Seyboth Wild, who entered on a wildcard, won the singles title.
The 2021 Argentina Open was a men's tennis tournament played on outdoor clay courts. It was the 24th edition of the ATP Buenos Aires event and part of the ATP Tour 250 series of the 2021 ATP Tour. It took place in Buenos Aires, Argentina, from 1–7 March 2021.
The 2021 Challenger de Buenos Aires was a professional tennis tournament played on clay courts. It was the tenth edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 18 and 24 October 2021.
The 2022 Challenger de Buenos Aires was a professional tennis tournament played on clay courts. It was the eleventh edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 26 September and 2 October 2022.
The 2022 Argentina Open was a men's tennis tournament played on outdoor clay courts. It was the 25th edition of the ATP Buenos Aires event, and part of the ATP Tour 250 series of the 2022 ATP Tour. It took place in Buenos Aires, Argentina, from 7 to 13 February 2022.
The 2022 Challenger Tenis Club Argentino was a professional tennis tournament played on clay courts. It was the first edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 20 and 26 June 2022.
The 2022 Maspalomas Challenger was a professional tennis tournament played on clay courts. It was the first edition of the tournament which was part of the 2022 ATP Challenger Tour. It took place in Maspalomas, Spain from 28 November to 4 December 2022.