2019 Prosperita Open

The 2019 Prosperita Open was a professional tennis tournament played on clay courts. It was the 16th edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Ostrava, Czech Republic between 29 April and 5 May.

Seeds

 * 1 Rankings are as of 22 April 2019.

Other entrants
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

Singles

 * 🇵🇱 Kamil Majchrzak def. 🇮🇹 Jannik Sinner 6–1, 6–0.

Doubles

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