See main article: 2021 Amex-Istanbul Challenger.
Ilya Ivashka was the defending champion[1] but chose not to defend his title.
Arthur Rinderknech won the title after defeating Benjamin Bonzi 4–6, 7–6(7–1), 7–6(7–3) in the final.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "2021 Amex-Istanbul Challenger – Singles".
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