2017 Internazionali di Tennis Castel del Monte

Country	Player	Rank1	Seed
ITA	Stefano Travaglia	136	1
LTU	Ričardas Berankis	142	2
BIH	Mirza Bašić	162	3
BIH	Aldin Šetkić	173	4
BLR	Uladzimir Ignatik	175	5
CRO	Viktor Galović	213	6
ITA	Lorenzo Sonego	214	7
CZE	Zdeněk Kolář	218	8

• ¹ Rankings are as of 13 November 2017.^[1]

The following players received wildcards into the singles main draw:

• Filippo Baldi
• Enrico Dalla Valle
• Andrea Pellegrino

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

• Igor Sijsling

The following players received entry from the qualifying draw:

• Gianluca Di Nicola
• Christopher Heyman
• Constant Lestienne
• Andrea Vavassori

The following player received entry as a lucky loser:

• Denis Matsukevich

• Uladzimir Ignatik def. Christopher Heyman 6–7^(3–7), 6–4, 7–6^(7–3).

• Lorenzo Sonego / Andrea Vavassori def. Sander Arends / Sander Gillé 6–3, 3–6, [10–7].