2026 Challenger AAT


The 2026 Challenger AAT de TCA was a professional tennis tournament played on clay courts. It was the fifth edition of the tournament which was part of the 2026 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 12 and 17 January 2026.

Singles main-draw entrants

Seeds

1 Rankings are as of 5 January 2026.

Other entrants

The following players received wildcards into the singles main draw:
The following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:

Champions

Singles

Franco Agamenone def. Andrea Collarini 3–6, 6–4, 6–2.

Doubles

Mariano Kestelboim / Marcelo Zormann def. Alexandru Jecan / Bogdan Pavel 6–3, 6–4.