See main article: 2021 Amex-Istanbul Challenger II.
Arthur Rinderknech was the defending champion[1] but chose not to defend his title.
James Duckworth won the title after defeating Wu Tung-lin 6–4, 6–2 in the final.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "2021 Amex-Istanbul Challenger II – Singles".
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