Gero Kretschmer and Alex Satschko were the defending champions but decided not to participate.
Igor Andreev and Evgeny Donskoy won the title, defeating James Cerretani and Adil Shamasdin 7–6(7–1), 7–6(7–2) in the final.
Rameez Junaid and Simon Stadler were the defending champions, but they did not participate that year.
Gero Kretschmer and Alexander Satschko won the title, defeating Henri Kontinen and Mateusz Kowalczyk in the final, 6–3, 6–3.
Tomasz Bednarek and Mateusz Kowalczyk was the defending champions, but Bednarek chose not to compete. Kowalczyk decided to participate in Strabag Prague Open instead.
This was the first edition of the tournament.
Tomasz Bednarek and Mateusz Kowalczyk were the two-time defending champions, but Bednarek did not participate that year. Kowalczyk played alongside Artem Sitak and they lost in the First Round to Adil Shamasdin and Franko Škugor.
Gero Kretschmer and Alexander Satschko were the defending champions, but they did not participate that year.
Radu Albot and Adam Pavlásek won the title, defeating Tomasz Bednarek and Henri Kontinen in the final, 7–5, 2–6, [10–8].
Matthias Bachinger and Dominik Meffert took the title, beating Gong Maoxin and Peng Hsien-yin 6–3, 3–6, [10–6]
Stefano Ianni and Potito Starace won the event the last time it was played, in 2013, but Ianni did not participate. Starace partnered with Adrian Ungur, but they lost to Dino Marcan and Blaž Rola in the first round.
Andrej Martin and Igor Zelenay are the defending champions, but Martin did not return to defend his title. Zelenay plays alongside Mateusz Kowalczyk, they lost already in the first round to Guido Andreozzi and Nicolás Jarry.
This was the first edition of the tournament since 2011.
Guido Andreozzi and Facundo Argüello are the defending champions, but chose not to participate. Gero Kretschmer and Alexander Satschko won the title, defeating Kenny de Schepper and Maxime Teixeira 7–6(7–3), 6–4.
Top seeds Wesley Koolhof and Matwé Middelkoop won the title, beating Gero Kretschmer and Alexander Satschko 6–3, 7–6(7–1)
Ilija Bozoljac and Filip Krajinović were the defending champions, but only Krajinović returned to defend his title, partnering Mirza Bašić. They lost in the first round to Johan Brunström and Andreas Siljeström.
Johan Brunström and Dick Norman were the defending champions, but only Brunström chose to defend his title, partnering Andreas Siljeström.
Mateusz Kowalczyk and Igor Zelenay were the defending champions but chose to participate with different partners. Kowalczyk partnered Tomasz Bednarek while Zelenay partnered Rameez Junaid. Both failed to defend their title, with Kowalczyk losing to Zelenay in the first round and Zelenay losing to Sander Arends and Tristan-Samuel Weissborn in the quarterfinals.
Aliaksandr Bury and Andreas Siljeström were the defending champions but chose not to defend their title.
James Cerretani and Philipp Oswald were the defending champions but only Cerretani chose to defend his title, partnering Max Schnur. Cerretani lost in the first round to Sander Arends and Matwé Middelkoop.
Jonathan Eysseric and André Ghem were the defending champions but chose not to defend their title.
Gero Kretschmer and Alexander Satschko were the defending champions but chose not to defend their title.
Roman Jebavý and Zdeněk Kolář were the defending champions but only Kolář chose to defend his title, partnering Aldin Šetkić. Kolář lost in the first round to Nikola Čačić and Luca Margaroli.
Jan Šátral 
Tristan-Samuel Weissborn 
Gero Kretschmer 
