2021 Amex-Istanbul Challenger II

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.

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

Singles main-draw entrants

Seeds

Country	Player	Rank1	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	Mohamed Safwat	176	8

• ¹ Rankings are as of 30 August 2021.^[1]

Other entrants

The following players received wildcards into the singles main draw:

• Sarp Ağabigün
• Victor Vlad Cornea
• Koray Kırcı

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:

• Geoffrey Blancaneaux

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, [11–9].