| 2021 Amex-Istanbul Challenger II | ||||
|---|---|---|---|---|
| Date | 13–19 September | |||
| Edition | 35th | |||
| Surface | Hard | |||
| Location | Istanbul, Turkey | |||
| Champions | ||||
| Singles | ||||
 James Duckworth | ||||
| Doubles | ||||
 Radu Albot / Alexander Cozbinov | ||||
| ||||
The 2021 Amex-Istanbul Challenger II was a professional tennis tournament played on hard courts. It was the 35th edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Istanbul, Turkey between 13 and 19 September 2021.
Singles main-draw entrants
Seeds
| Country | Player | Rank | Seed |
|---|---|---|---|
| AUS
|
James Duckworth | 68 | 1 |
| MDA
|
Radu Albot | 108 | 2 |
 COL
|
Daniel Elahi Galán | 110 | 3 |
 JPN
|
Yasutaka Uchiyama | 123 | 4 |
| AUS
|
Marc Polmans | 148 | 5 |
 RUS
|
Evgeny Donskoy | 152 | 6 |
 UKR
|
Illya Marchenko | 154 | 7 |
 EGY |
- Rankings are as of 30 August 2021.
Other entrants
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Nick Chappell
Christopher Heyman
Laurent Lokoli
Aldin Šetkić
The following player received entry as a lucky loser:
Champions
Singles
Main article: 2021 Amex-Istanbul Challenger II – Singles- James Duckworth def.
Wu Tung-lin 6–4, 6–2.
Doubles
Main article: 2021 Amex-Istanbul Challenger II – Doubles- Radu Albot / Alexander Cozbinov def.
Antonio Šančić / 
Artem Sitak 4–6, 7–5, .
References
- "Rankings | Singles | ATP Tour | Tennis". ATP Tour.