2021 Challenger de Santiago III

The 2021 Challenger de Santiago III was a professional tennis tournament played on clay courts. It was the 15th edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Santiago, Chile between 11 and 17 October 2021.

2021 Challenger de Santiago III
Date	11–17 October
Edition	15th
Surface	Clay
Location	Santiago, Chile
Champions
Singles
Sebastián Báez
Doubles
Evan King / Max Schnur

Singles main-draw entrants

Seeds

Country	Player	Rank1	Seed
ARG	Juan Manuel Cerúndolo	103	1
ARG	Francisco Cerúndolo	110	2
PER	Juan Pablo Varillas	127	3
BRA	Thiago Seyboth Wild	129	4
ARG	Sebastián Báez	140	5
CHI	Marcelo Tomás Barrios Vera	154	6
ARG	Juan Ignacio Londero	157	7
FRA	Enzo Couacaud	189	8

• ¹ Rankings are as of 4 October 2021.

Other entrants

The following players received wildcards into the singles main draw:

• Diego Fernández Flores
• Matías Soto
• Benjamín Torres

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

• Gerald Melzer

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

• Hernán Casanova
• Nick Chappell
• Facundo Díaz Acosta
• Gonzalo Lama

The following players received entry from the qualifying draw:

• Nicolás Álvarez
• Oliver Crawford
• Diego Hidalgo
• Rafael Matos

The following player received entry as a lucky loser:

• Lucas Catarina

Champions

Singles

Main article: 2021 Challenger de Santiago III – Singles

• Sebastián Báez def. Felipe Meligeni Alves 3–6, 7–6^(8–6), 6–1.

Doubles

Main article: 2021 Challenger de Santiago III – Doubles

• Evan King / Max Schnur def. Hans Hach Verdugo / Miguel Ángel Reyes-Varela 3–6, 7–6^(7–3), [16–14].