2024 Challenger AAT II

The 2024 Challenger AAT II was a professional tennis tournament played on clay courts. It was the fourth edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 15 and 21 January 2024.

Seeds

 * 1 Rankings are as of 8 January 2024.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇦🇷 Nicolás Kicker
 * 🇦🇷 Mariano Navone
 * 🇦🇷 Juan Bautista Torres

The following players received entry into the singles main draw as special exempts:
 * 🇵🇪 Gonzalo Bueno
 * 🇰🇿 Dmitry Popko

The following players received entry into the singles main draw as alternates:
 * 🇮🇹 Gianluca Mager
 * 🇩🇪 Timo Stodder

The following players received entry from the qualifying draw:
 * 🇦🇷 Hernán Casanova
 * 🇬🇧 Felix Gill
 * 🇧🇷 Orlando Luz
 * 🇪🇸 Carlos Sánchez Jover
 * 🇦🇷 Gonzalo Villanueva
 * Damien Wenger

Singles

 * 🇦🇷 Facundo Bagnis def. 🇦🇷 Mariano Navone 7–5, 1–6, 7–5.

Doubles

 * 🇧🇷 João Fonseca / 🇧🇷 Pedro Sakamoto def. 🇩🇪 Jakob Schnaitter / 🇩🇪 Mark Wallner 6–2, 6–2.