| Doubles | |
|---|---|
| 2020 Amex-Istanbul Challenger | |
| Champions |  Ariel Behar  Gonzalo Escobar |
| Runners-up |  Robert Galloway Nathaniel Lammons |
| Score | 4–6, 6–3, [10–7] |
Andrey Golubev and Aleksandr Nedovyesov were the defending champions [1] but chose not to defend their title.
Ariel Behar and Gonzalo Escobar won the title after defeating Robert Galloway and Nathaniel Lammons 4–6, 6–3, [10–7] in the final.
Ariel Behar / Gonzalo Escobar (champions)
André Göransson / 
Artem Sitak (quarterfinals)
Romain Arneodo / 
David Vega Hernández (first round)
Luis David Martínez / 
Miguel Ángel Reyes-Varela (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | A Behar G Escobar | 6 | 77 | ||||||||||||||||||||||||
| WC |  K Kırcı E Kırkın | 1 | 63 | 1 | A Behar G Escobar | 6 | 6 | ||||||||||||||||||||
 T Gabashvili  M Janvier | 5 | 7 | [10] | T Gabashvili M Janvier | 4 | 0 | |||||||||||||||||||||
| WC | S Ağabigün A Çelikbilek | 7 | 5 | [6] | 1 | A Behar G Escobar | 6 | 77 | |||||||||||||||||||
| 4 | LD Martínez MÁ Reyes-Varela | 64 | 3 |  D Molchanov S Stakhovsky | 1 | 65 | |||||||||||||||||||||
| D Molchanov S Stakhovsky | 77 | 6 | D Molchanov S Stakhovsky | 6 | 4 | [10] | |||||||||||||||||||||
 R Matos F Meligeni Alves | 1 | 6 | [7] | H Reese  J Zieliński | 4 | 6 | [4] | ||||||||||||||||||||
| H Reese J Zieliński | 6 | 4 | [10] | 1 | A Behar G Escobar | 4 | 6 | [10] | |||||||||||||||||||
| S Doumbia F Reboul | 6 | 6 | R Galloway N Lammons | 6 | 3 | [7] | |||||||||||||||||||||
| WC | Cengiz Aksu A Šetkić | 4 | 4 | S Doumbia F Reboul | 3 | 6 | [7] | ||||||||||||||||||||
 I Sabanov M Sabanov | 5 | 6 | [10] | I Sabanov M Sabanov | 6 | 2 | [10] | ||||||||||||||||||||
| 3 | R Arneodo D Vega Hernández | 7 | 4 | [8] | I Sabanov M Sabanov | 62 | 1 | ||||||||||||||||||||
 P Polansky  D Popko | 1 | 63 | R Galloway N Lammons | 77 | 6 | ||||||||||||||||||||||
| R Galloway N Lammons | 6 | 77 | R Galloway N Lammons | 7 | 77 | ||||||||||||||||||||||
 F Ferreira Silva  I Ivashka | 3 | 3 | 2 | A Göransson A Sitak | 5 | 61 | |||||||||||||||||||||
| 2 | A Göransson A Sitak | 6 | 6 | ||||||||||||||||||||||||
Salvatore Caruso and Jonathan Eysseric were the defending champions but chose not to defend their title.
The men's doubles of the 2019 Advantage Cars Prague Open tournament was played on clay in Prague, Czech Republic.
Andre Begemann and Dustin Brown were the defending champions but only Begemann chose to defend his title, partnering Florin Mergea.
Leander Paes and Miguel Ángel Reyes-Varela were the defending champions but only Reyes-Varela chose to defend his title, partnering Marcelo Arévalo. Reyes-Varela lost in the semifinals to Orlando Luz and Luis David Martínez.
Guido Andreozzi and Guillermo Durán were the defending champions but chose not to defend their title.
Guillermo Durán and Roberto Quiroz were the defending champions but only Quiroz chose to defend his title, partnering Yannick Hanfmann. Quiroz lost in the first round to Luis David Martínez and Felipe Meligeni Alves.
Austin Krajicek and Nicholas Monroe were the defending champions but chose not to defend their title.
Robert Galloway and Nathaniel Lammons were the defending champions but only Lammons chose to defend his title, partnering Hunter Reese. Lammons lost in the first round to Sekou Bangoura and Sebastian Korda.
Kevin Krawietz and Jürgen Melzer were the defending champions but chose not to defend their title.
Ariel Behar and Gonzalo Escobar were the defending champions but only Escobar chose to defend his title, partnering Diego Hidalgo. Escobar lost in the first round to Íñigo Cervantes and Oriol Roca Batalla.
Ariel Behar and Gonzalo Escobar were the defending champions but only Escobar chose to defend his title, partnering Artem Sitak. Escobar lost in the semifinals to Íñigo Cervantes and Oriol Roca Batalla.
Bob and Mike Bryan were the two-time defending champions, but they retired in August 2020 so they did not defend their titles. Ariel Behar and Gonzalo Escobar won the title, defeating Christian and Ryan Harrison in the final, 6–7(5–7), 7–6(7–4), [10–4].
Ariel Behar and Gonzalo Escobar were the defending champions but chose not to defend their title.
Marcelo Demoliner and Matwé Middelkoop were the defending champions, but Middelkoop decide to participate in the 2021 Open Sud de France instead. Demoliner was pairing up with Santiago González, but they lost in the first round to Guillermo Durán and Andrés Molteni.
Marcel Granollers and Horacio Zeballos were the defending champions, but they decided not to participate this year.
Jonathan Erlich and Andy Ram were the last defending champions after victory in 2012, but Erlich chose not to participate and Ram retired from professional tennis in 2014.
Marcelo Demoliner and Santiago González defeated Ariel Behar and Gonzalo Escobar in the final, 4–6, 6–3, [10–8], to win the doubles tennis title at the 2021 Stuttgart Open. It was their second title as a team, their first in three years. Behar and Escobar were contesting for their third title of the season.
Marcel Granollers and Horacio Zeballos were the defending champions, when the event was last held in 2020, but lost to Jamie Murray and Bruno Soares in the semifinals.
Ariel Behar and Gonzalo Escobar defeated Nikola Mektić and Mate Pavić in the final, 6–2, 3–6, [10–7], to win the doubles title at the 2022 Serbia Open. The unseeded duo earned their third career ATP Tour doubles title together.
Rafael Matos and David Vega Hernández defeated Ariel Behar and Gonzalo Escobar in the final, 7–6(7–5), 6–7(6–8), [10–1] to win the doubles tennis title at the 2022 Mallorca Championships. The pair earned their second ATP Tour doubles title of the season and first grass victory together.