2020 Prosperita Open

The 2020 Prosperita Open was a professional tennis tournament played on clay courts. It was the 17th edition of the tournament which was part of the 2020 ATP Challenger Tour. It took place in Ostrava, Czech Republic between 31 August and 6 September.

Seeds

 * 1 Rankings are as of 24 August 2020.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇨🇿 Tomáš Macháč
 * 🇨🇿 Dalibor Svrčina
 * 🇫🇮 Otto Virtanen

The following players received entry into the singles main draw as special exempts:
 * Tallon Griekspoor
 * 🇷🇺 Aslan Karatsev

The following players received entry from the qualifying draw:
 * Marc-Andrea Hüsler
 * 🇨🇿 Zdeněk Kolář
 * 🇨🇿 Vít Kopřiva
 * 🇩🇪 Mats Moraing

The following player received entry as a lucky loser:
 * 🇹🇳 Malek Jaziri

Singles

 * 🇷🇺 Aslan Karatsev def. 🇩🇪 Oscar Otte 6–4, 6–2.

Doubles

 * 🇳🇿 Artem Sitak / 🇸🇰 Igor Zelenay def. 🇵🇱 Karol Drzewiecki / 🇵🇱 Szymon Walków 7–5, 6–4.