2019 Prosperita Open

Country	Player	Rank1	Seed
RSA	Lloyd Harris	90	1
CZE	Jiří Veselý	94	2
ESP	Marcel Granollers	110	3
POL	Kamil Majchrzak	121	4
AUT	Dennis Novak	122	5
ITA	Stefano Travaglia	154	6
EST	Jürgen Zopp	177	7
BEL	Arthur De Greef	179	8
GER	Dominik Köpfer	183	9
ITA	Stefano Napolitano	189	10
NED	Tallon Griekspoor	192	11
CRO	Viktor Galović	198	12
CZE	Adam Pavlásek	208	13
SVK	Norbert Gombos	222	14
NED	Thiemo de Bakker	225	15
ITA	Matteo Viola	230	16

• ¹ Rankings are as of 22 April 2019.^[1]

The following players received wildcards into the singles main draw:

• Marek Gengel
• Jiří Lehečka
• Tomáš Macháč
• David Poljak
• Dalibor Svrčina

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

• Pere Riba

The following player received entry into the singles main draw as an alternate:

• Andrea Vavassori

The following players received entry into the singles main draw using their ITF World Tennis Ranking:

• Riccardo Bonadio
• Ivan Gakhov
• Peter Heller
• Vít Kopřiva
• Alexander Zhurbin

The following players received entry from the qualifying draw:

• Enrico Dalla Valle
• Jonáš Forejtek

• Kamil Majchrzak def. Jannik Sinner 6–1, 6–0.

• Luca Margaroli / Filip Polášek def. Thiemo de Bakker / Tallon Griekspoor 6–4, 2–6, [10–8].