The 2026 Antofagasta Challenger was a professional tennis tournament played on clay courts. It was the fourth edition of the tournament which was part of the 2026 ATP Challenger Tour. It took place in Antofagasta, Chile between 5 and 11 October 2026.
Singles main-draw entrants Seeds Country Player Rank1 SeedGustavo Heide1221Francisco Comesaña1232Tomás Barrios Vera1353Thiago Seyboth Wild1364Juan Carlos Prado Ángelo1595Juan Pablo Varillas1936Lautaro Midón2007Alex Barrena2208 1 Rankings are as of 28 September 2026.
Other entrants The following players received wildcards into the singles main draw: Samuel Heredia Miguel Tobón Nicolás Villalón
The following player received entry into the singles main draw using a protected ranking: Felipe Meligeni Alves
The following players received entry into the singles main draw as alternates: Murkel Dellien Eduardo Ribeiro
The following players received entry from the qualifying draw: Joaquín Aguilar Cardozo Thiago Cigarrán Bernardo Munk Mesa José Pereira João Eduardo Schiessl Máximo Zeitune
Champions Singles
vs.
Doubles
/ vs. /
References