Andrey Kuznetsov and Aleksandr Nedovyesov were the defending champions, but only Aleksandr Nedovyesov returned to defend his title, partnering up with Denys Molchanov.
Matteo Donati and Andrey Golubev beat second seeds Denys Molchanov and Aleksandr Nedovyesov 3–6, 7–6(7–5), [10–1]
Facundo Bagnis and Guido Pella were the defending champions but chose not to defend their title.
Ariel Behar and Andrey Golubev were the defending champions but only Behar chose to defend his title, partnering Aliaksandr Bury. Behar lost in the quarterfinals to Victor Vlad Cornea and Zdeněk Kolář.
Juan Sebastián Cabal and Robert Farah were the defending champions but Farah chose not to participate this year. Cabal played alongside Denys Molchanov, but lost in the semifinals to Max Mirnyi and Philipp Oswald.
Oliver Marach and Philipp Oswald were the defending champions, but they chose to compete alongside different partners in Hamburg instead.
Ken and Neal Skupski were the defending champions but only Ken Skupski chose to defend his title, partnering Jonny O'Mara. Ken Skupski lost in the semifinals to Denys Molchanov and Igor Zelenay.
Quentin Halys and Tristan Lamasine were the defending champions but only Halys chose to defend his title, partnering Lucas Pouille. Halys lost in the quarterfinals to Purav Raja and Tristan-Samuel Weissborn.
Andrey Golubev and Aleksandr Nedovyesov were the defending champions but lost in the semifinals to Szymon Walków and Jan Zieliński.
Denys Molchanov and Aleksandr Nedovyesov were the defending champions but chose not to defend their title.
Antonio Šančić and Nino Serdarušić were the defending champions but chose not to defend their title.
Denys Molchanov and David Vega Hernández were the defending champions but chose not to defend their title.
Victor Vlad Cornea and Petr Nouza were the defending champions but chose to defend their title with different partners. Cornea partnered Sergio Martos Gornés but lost in the semifinals to Sander Arends and David Pel. Nouza partnered Vitaliy Sachko but lost in the first round to Cornea and Martos Gornés.
This was the first edition of the tournament.
This was the first edition of the tournament.
Nicolás Barrientos and Miguel Ángel Reyes-Varela were the defending champions but chose to defend their title with different partners. Barrientos partnered Diego Hidalgo but lost in the quarterfinals to Victor Vlad Cornea and Philipp Oswald. Reyes-Varela partnered Jonathan Eysseric but lost in the quarterfinals to Andrey Golubev and Denys Molchanov.
Nathaniel Lammons and Jackson Withrow were the defending champions but chose not to defend their title.
Denys Molchanov and Aleksandr Nedovyesov were the defending champions but only Molchanov chose to defend his title, partnering Andrey Golubev. Molchanov lost in the final to Sriram Balaji and Andre Begemann.
Oleksii Krutykh and Oriol Roca Batalla were the defending champions but chose to defend their title with different partners. Krutykh partnered Sumit Nagal but lost in the first round to Marco Bortolotti and Alexandru Jecan. Roca Batalla partnered Daniel Rincón but lost in the final to Andrea Pellegrino and Andrea Vavassori.
Bogdan Bobrov and Sergey Fomin were the defending champions but chose not to defend their title.
Robert Galloway and Miguel Ángel Reyes-Varela were the defending champions but only Reyes-Varela chose to defend his title, partnering Guido Andreozzi. He lost in the semifinals to Jaime Faria and Henrique Rocha.
Victor Vlad Cornea 
Philipp Oswald 
Andrey Golubev 
Denys Molchanov 
