2025 Costa do Sauípe Open

Country	Player	Rank1	Seed
ARG	Mariano Navone	85	1
ARG	Juan Manuel Cerúndolo	87	2
USA	Emilio Nava	93	3
ARG	Thiago Agustín Tirante	100	4
ESP	Carlos Taberner	103	5
CHI	Cristian Garín	108	6
CHI	Tomás Barrios Vera	119	7
BOL	Hugo Dellien	129	8
ARG	Román Andrés Burruchaga	131	9

• ¹ Rankings are as of 13 October 2025.^[2]

The following players received wildcards into the singles main draw:

• Gustavo Heide
• Luís Miguel
• João Eduardo Schiessl

The following players received entry into the singles main draw as special exempts:

• Pedro Boscardin Dias
• Daniel Vallejo

The following player received entry into the singles main draw as an alternate:

• Facundo Díaz Acosta

The following players received entry from the qualifying draw:

• Mateus Alves
• Andrea Collarini
• Sebastian Gima
• Igor Gimenez
• Matheus Pucinelli de Almeida
• Gonzalo Villanueva

• Román Andrés Burruchaga def. Daniel Vallejo 6–1, 6–2.

• Luís Miguel / Eduardo Ribeiro def. Gonzalo Escobar / Miguel Ángel Reyes-Varela 7–6^(7–4), 4–6, [10–5].