2020 Thindown Challenger Biella

Country	Player	Rank1	Seed
BRA	Thiago Seyboth Wild	107	1
AUS	Christopher O'Connell	112	2
IND	Sumit Nagal	127	3
ARG	Facundo Bagnis	129	4
ITA	Paolo Lorenzi	130	5
ITA	Federico Gaio	132	6
IND	Prajnesh Gunneswaran	141	7
PER	Juan Pablo Varillas	142	8

• Rankings are as of 21 September 2020.^[1]

The following players received wildcards into the singles main draw:

• Rémy Bertola
• Gabriele Felline
• Stefano Napolitano

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

• Blaž Kavčič

The following players received entry from the qualifying draw:

• Andrea Arnaboldi
• Alexandre Müller
• Andrea Pellegrino
• Tseng Chun-hsin

• Facundo Bagnis def. Blaž Kavčič 6–7^(4–7), 6–4, 0–0 ret.

• Harri Heliövaara / Szymon Walków def. Lloyd Glasspool / Alex Lawson 7–5, 6–3.