2021 Amex-Istanbul Challenger II – Doubles
| Doubles | |
|---|---|
| 2021 Amex-Istanbul Challenger II | |
| Champions |  Radu Albot  Alexander Cozbinov | 
| Runners-up |  Antonio Šančić  Artem Sitak | 
| Score | 4–6, 7–5, [11–9] | 
André Göransson and David Pel were the defending champions[1] but chose not to defend their title.
Radu Albot and Alexander Cozbinov won the title after defeating Antonio Šančić and Artem Sitak 4–6, 7–5, [11–9] in the final.
Seeds
 Antonio Šančić / Antonio Šančić / Artem Sitak (final) Artem Sitak (final)
 James Cerretani / James Cerretani / Fabian Fallert (semifinals) Fabian Fallert (semifinals)
 Alexander Bublik / Alexander Bublik / Daniil Golubev (first round) Daniil Golubev (first round)
 Ruben Gonzales / Ruben Gonzales / Hunter Johnson (semifinals) Hunter Johnson (semifinals)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted
| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 |  A Šančić  A Sitak | 6 | 6 | ||||||||||||||||||||||||
| WC |  S Ağabigün  T Altuna | 2 | 3 | 1 |  A Šančić  A Sitak | 6 | 62 | [13] | |||||||||||||||||||
|  G Blancaneaux  T Fabbiano | 6 | 6 |  G Blancaneaux  T Fabbiano | 0 | 77 | [11] | |||||||||||||||||||||
|  A Dubrivnyy  E Tiurnev | 3 | 4 | 1 |  A Šančić  A Sitak | 4 | 6 | [10] | ||||||||||||||||||||
| 4 |  R Gonzales  H Johnson | 6 | 6 | 4 |  R Gonzales  H Johnson | 6 | 2 | [5] | |||||||||||||||||||
|  A Arnaboldi  L Giustino | 4 | 3 | 4 |  R Gonzales  H Johnson | 6 | 6 | |||||||||||||||||||||
| WC |  K Kırcı  A Šetkić | 1 | 6 | [10] | WC |  K Kırcı  A Šetkić | 0 | 2 | |||||||||||||||||||
|  J Eysseric  Q Halys | 6 | 4 | [8] | 1 |  A Šančić  A Sitak | 6 | 5 | [9] | |||||||||||||||||||
|  Y-h Hsu  E Karlovskiy | 4 | 6 | [11] |  R Albot  A Cozbinov | 4 | 7 | [11] | ||||||||||||||||||||
| Alt |  Elmar Ejupovic  A Jecan | 6 | 3 | [9] |  Y-h Hsu  E Karlovskiy | 5 | 6 | [3] | |||||||||||||||||||
|  R Albot  A Cozbinov | 6 | 6 |  R Albot  A Cozbinov | 7 | 3 | [10] | |||||||||||||||||||||
| 3/WC |  A Bublik  D Golubev | 1 | 2 |  R Albot  A Cozbinov | 77 | 6 | |||||||||||||||||||||
|  S Balaji  H Moriya | 6 | 6 | 2/PR |  J Cerretani  F Fallert | 65 | 3 | |||||||||||||||||||||
| PR |  C-h Tseng  T-l Wu | 4 | 1 |  S Balaji  H Moriya | 6 | 65 | [7] | ||||||||||||||||||||
|  H Grenier  A Müller | 1 | 5 | 2/PR |  J Cerretani  F Fallert | 3 | 77 | [10] | ||||||||||||||||||||
| 2/PR |  J Cerretani  F Fallert | 6 | 7 | ||||||||||||||||||||||||
References
- ^ "Bonzi To Face Rinderknech In All-French Istanbul Final". January 23, 2021.