2026 Rosario Challenger

Country	Player	Rank1	Seed
ARG	Camilo Ugo Carabelli	49	1
ARG	Francisco Comesaña	68	2
ARG	Mariano Navone	74	3
ARG	Juan Manuel Cerúndolo	87	4
ARG	Román Andrés Burruchaga	104	5
TPE	Tseng Chun-hsin	122	6
BOL	Hugo Dellien	137	7
ITA	Andrea Pellegrino	138	8

• ¹ Rankings are as of 19 January 2026.^[1]

The following players received wildcards into the singles main draw:

• Renzo Olivo
• Juan Bautista Torres
• Camilo Ugo Carabelli

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

• Franco Agamenone
• Gonzalo Villanueva

The following players received entry from the qualifying draw:

• Luciano Emanuel Ambrogi
• Hernán Casanova
• Juan Estévez
• Guido Iván Justo
• Juan Manuel La Serna
• Igor Marcondes

The following player received entry as a lucky loser:

• Valerio Aboian

• Camilo Ugo Carabelli def. Román Andrés Burruchaga 6–2, 6–3.

• Ignacio Carou / Facundo Mena def. Miguel Ángel Reyes-Varela / Fernando Romboli 6–1, 6–4.