The 2026 Copa Internacional de Tênis was a professional tennis tournament played on clay courts. It was the 15th edition of the tournament which was part of the 2026 ATP Challenger Tour. It took place in Campinas, Brazil between 6 and 12 April 2026.

Singles main-draw entrants Seeds Country Player Rank1 SeedGonzalo Bueno2061Álvaro Guillén Meza2112João Lucas Reis da Silva2123Lautaro Midón2174Facundo Díaz Acosta2225Pedro Boscardin Dias2406Guido Iván Justo2707Juan Pablo Varillas2718 1 Rankings as of 30 March 2026.

Other entrants The following players received wildcards into the singles main draw: Victor Braga Enzo Camargo Lima Paulo André Saraiva dos Santos

The following players received entry into the singles main draw as alternates: Johan Nikles Lucio Ratti Lorenzo Joaquín Rodríguez

The following players received entry from the qualifying draw: Santiago de la Fuente Bruno Fernandez Conner Huertas del Pino José Pereira Victor Hugo Remondy Pagotto Franco Ribero

Champions Singles

Gustavo Heide def. Gonzalo Bueno 6–2, 7–5.

Doubles

Nicolás Álvarez Varona / Mario Mansilla Díez def. Mariano Kestelboim / Marcelo Zormann 3–6, 6–1, [10–8].

References