| Doubles | |
|---|---|
| 2018 Garden Open | |
| Champions |  Kevin Krawietz Andreas Mies |
| Runners-up |  Sander Gillé Joran Vliegen |
| Final score | 6–3, 2–6, [10–4] |
Andreas Mies and Oscar Otte were the defending champions but only Mies chose to defend his title, partnering Kevin Krawietz. Mies successfully defended his title.
Krawietz and Mies won the title after defeating Sander Gillé and Joran Vliegen 6–3, 2–6, [10–4] in the final.
Sander Gillé / Joran Vliegen (final)
Denys Molchanov / 
Igor Zelenay (quarterfinals) Kevin Krawietz / Andreas Mies (champions)
Marin Draganja / Tomislav Draganja (quarterfinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | S Gillé J Vliegen | 77 | 6 | ||||||||||||||||||||||||
 A Arnaboldi M Viola | 62 | 3 | 1 | S Gillé J Vliegen | 6 | 6 | |||||||||||||||||||||
| WC | Enrico Dalla Valle G Fonio | 4 | 5 | A Giannessi A Motti | 3 | 0 | |||||||||||||||||||||
| A Giannessi A Motti | 6 | 7 | 1 | S Gillé J Vliegen | w/o | ||||||||||||||||||||||
| 4 | M Draganja T Draganja | 6 | 2 | [10] | WC | D Bracciali G Quinzi | |||||||||||||||||||||
 Z Kolář A Pavlásek | 3 | 6 | [4] | 4 | M Draganja T Draganja | 5 | 4 | ||||||||||||||||||||
| WC | D Bracciali G Quinzi | 6 | 6 | WC | D Bracciali G Quinzi | 7 | 6 | ||||||||||||||||||||
| S Bolelli M Donati | 4 | 4 | 1 | S Gillé J Vliegen | 3 | 6 | [4] | ||||||||||||||||||||
 Í Cervantes  R Olivo | 4 | 5 | 3 | K Krawietz A Mies | 6 | 2 | [10] | ||||||||||||||||||||
JI Londero  F Neis | 6 | 7 | JI Londero F Neis | 4 | 5 | ||||||||||||||||||||||
K Coppejans  Q Halys | 1 | 4 | 3 | K Krawietz A Mies | 6 | 7 | |||||||||||||||||||||
| 3 | K Krawietz A Mies | 6 | 6 | 3 | K Krawietz A Mies | 6 | 6 | ||||||||||||||||||||
 T Brkić Patricio Heras | 2 | 4 | A Martin  H Podlipnik-Castillo | 4 | 2 | ||||||||||||||||||||||
| A Martin H Podlipnik-Castillo | 6 | 6 | A Martin H Podlipnik-Castillo | 6 | 6 | ||||||||||||||||||||||
| WC | Riccardo Balzerani Corrado Summaria | 1 | 3 | 2 | D Molchanov I Zelenay | 2 | 3 | ||||||||||||||||||||
| 2 | D Molchanov I Zelenay | 6 | 6 | ||||||||||||||||||||||||
Kevin Krawietz and Maximilian Marterer were the defending champions but only Marterer chose to defend his title, partnering Nils Langer. Langer and Marterer withdrew in the first round.
Gerard Granollers and Oriol Roca Batalla were the defending champions but only Roca Batalla decided to defend his title, partnering Pedro Martínez. Roca Batalla lost in the quarterfinals to Kevin Krawietz and Maximilian Marterer.
Sander Arends and Tristan-Samuel Weissborn were the defending champions but chose not to defend their title.
Wesley Koolhof and Matwé Middelkoop were the defending champions but chose not to defend their title.
This was a doubles tennis event in a professional tennis tournament held in Biella, Italy, in the summer of 2017.
Mikhail Elgin and Andrei Vasilevski were the defending champions but chose not to defend their title.
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Jonathan Eysseric and Édouard Roger-Vasselin were the defending champions but only Eysseric chose to defend his title, partnering Andre Begemann. Eysseric successfully defended his title, defeating Tomasz Bednarek and David Pel 6–3, 6–4 in the final.
Julian Knowle and Adil Shamasdin were the defending champions but chose not to defend their title.
Ken and Neal Skupski were the defending champions but chose not to defend their title.
Jan Šátral and Tristan-Samuel Weissborn were the defending champions but only Šátral chose to defend his title, partnering Jan Mertl. Šátral lost in the quarterfinals to Fernando Romboli and David Vega Hernández.
This was the first edition of the tournament.
Tim Pütz and Jan-Lennard Struff were the defending champions but chose not to defend their title.
Sander Arends and Antonio Šančić were the defending champions but only Šančić chose to defend his title, partnering Purav Raja. Šančić lost in the finals to Sander Gillé and Joran Vliegen.
Guido Andreozzi and Ariel Behar were the defending champions but only Behar chose to defend his title, partnering Thiago Monteiro. Behar lost in the first round to David Pérez Sanz and Oriol Roca Batalla.
Wesley Koolhof and Artem Sitak were the defending champions but chose not to defend their title.
Nicolas Mahut and Édouard Roger-Vasselin were the defending champions, but Mahut chose not to defend the title and Roger-Vasselin chose to compete in Stockholm instead.
Kevin Krawietz and Andreas Mies were the defending champions but this year they decided to participate in the Cologne event instead.
Frederik Nielsen and Tim Pütz were the reigning champions from when the tournament was last held in 2019, but chose to compete in Estoril instead.
Sander Gillé and Joran Vliegen were the reigning champions from when the tournament was last held in 2019, but chose not to defend their title.