2021 Biella Challenger Indoor IV

Country	Player	Rank1	Seed
FRA	Lucas Pouille	81	1
GER	Yannick Hanfmann	105	2
ITA	Andreas Seppi	107	3
JPN	Yūichi Sugita	108	4
JPN	Yasutaka Uchiyama	109	5
BLR	Ilya Ivashka	113	6
FRA	Grégoire Barrère	115	7
FRA	Benjamin Bonzi	127	8

• ¹ Rankings are as of 8 March 2021.^[1]

The following players received wildcards into the singles main draw:

• Flavio Cobolli
• Matteo Gigante
• Stefano Napolitano

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

• Dustin Brown

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

• Quentin Halys
• Tobias Kamke
• Zdeněk Kolář

The following players received entry from the qualifying draw:

• Matthias Bachinger
• Jonáš Forejtek
• Daniel Masur
• Akira Santillan

The following players received entry as lucky losers:

• Nicola Kuhn
• Jack Sock

• Daniel Masur def. Matthias Bachinger 6–3, 6–7^(8–10), 7–5.

• Lloyd Glasspool / Matt Reid def. Denys Molchanov / Sergiy Stakhovsky 6–3, 6–4.