2018 Internazionali di Tennis Città di Vicenza

Country	Player	Rank1	Seed
ITA	Lorenzo Sonego	126	1
GER	Yannick Maden	128	2
AUT	Sebastian Ofner	131	3
BOL	Hugo Dellien	139	4
ITA	Stefano Travaglia	145	5
GER	Matthias Bachinger	154	6
AUS	Jason Kubler	160	7
DOM	Víctor Estrella Burgos	165	8

• ¹ Rankings are as of 21 May 2018.^[1]

The following players received wildcards into the singles main draw:

• Liam Caruana
• Matteo Donati
• Gian Marco Moroni
• Stefano Travaglia

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

• Danilo Petrović
• Gianluigi Quinzi

The following players received entry from the qualifying draw:

• Martín Cuevas
• Gianluca Mager
• Marc Polmans
• Roberto Quiroz

The following player received entry as a lucky loser:

• Guilherme Clezar

• Hugo Dellien def. Matteo Donati 6–4, 5–7, 6–4.

• Ariel Behar / Enrique López Pérez def. Facundo Bagnis / Fabrício Neis 6–2, 6–4.