2023 RD Open

Country	Player	Rank1	Seed
ARG	Federico Coria	103	1
CHI	Alejandro Tabilo	122	2
ARG	Thiago Agustín Tirante	136	3
ITA	Flavio Cobolli	142	4
BOL	Hugo Dellien	165	5
BRA	Felipe Meligeni Alves	177	6
ARG	Genaro Alberto Olivieri	190	7
ARG	Marco Trungelliti	219	8

• ¹ Rankings were as of 31 July 2023.^[1]

The following players received wildcards into the singles main draw:

• Peter Bertran
• Roberto Cid Subervi
• Gonzalo Lama

The following player received entry into the singles main draw using a protected ranking:

• Pedro Sakamoto

The following players received entry from the qualifying draw:

• Mateus Alves
• Ignacio Monzón
• Jorge Panta
• Justin Roberts
• Kyle Seelig
• Joshua Sheehy

• Genaro Alberto Olivieri def. Marco Trungelliti 7–5, 2–6, 6–4.

• Pedro Boscardin Dias / Gustavo Heide def. Diego Hidalgo / Cristian Rodríguez 6–4, 7–5.