2023 Antofagasta Challenger

The 2023 Antofagasta Challenger was a professional tennis tournament played on clay courts. It was the 1st edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Antofagasta, Chile between 18 and 24 September 2023.

Seeds
1 Rankings are as of 11 September 2023.

Other entrants
The following players received wildcards into the singles main draw:
 * Gonzalo Lama
 * 🇧🇴 Juan Carlos Prado Ángelo
 * Matías Soto

The following players received entry into the singles main draw as alternates:
 * 🇺🇸 Tristan Boyer
 * 🇳🇴 Viktor Durasovic
 * 🇧🇷 Eduardo Ribeiro

The following players received entry from the qualifying draw:
 * 🇧🇷 Pedro Boscardin Dias
 * 🇦🇷 Tomás Farjat
 * 🇧🇷 Gilbert Klier Júnior
 * 🇦🇷 Facundo Mena
 * 🇦🇷 Ignacio Monzón
 * 🇧🇷 Pedro Sakamoto

Singles

 * 🇦🇷 Camilo Ugo Carabelli def. 🇺🇸 Tristan Boyer 3–6, 6–1, 7–5.

Doubles

 * 🇧🇴 Boris Arias / 🇧🇴 Federico Zeballos def. 🇮🇹 Luciano Darderi / 🇧🇴 Murkel Dellien 5–7, 6–4, [10–8].