2020 I.ČLTK Prague Open

The 2020 I.ČLTK Prague Open is a professional tennis tournament played on outdoor clay courts. It was part of the 2020 ATP Challenger Tour. It took place in Prague, Czech Republic between 17 August and 6 September 2020.

Seeds

 * 1 Rankings are as of 16 March 2020.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇨🇿 Jonáš Forejtek
 * 🇨🇿 Jiří Lehečka
 * 🇨🇿 Andrew Paulson
 * 🇨🇿 Michael Vrbenský
 * Stan Wawrinka

The following players received entry into the singles main draw using a protected ranking:
 * 🇧🇪 Arthur De Greef
 * 🇷🇺 Andrey Kuznetsov

The following players received entry from the qualifying draw:
 * 🇨🇿 Petr Nouza
 * 🇨🇿 Jan Šátral

Men's singles

 * Stan Wawrinka def. 🇷🇺 Aslan Karatsev 7–6(7–2), 6–4.

Men's doubles

 * 🇫🇷 Pierre-Hugues Herbert / 🇫🇷 Arthur Rinderknech def. 🇨🇿 Zdeněk Kolář / 🇨🇿 Lukáš Rosol 6–3, 6–4.