2021 Amex-Istanbul Challenger II – Singles

Arthur Rinderknech was the defending champion but chose not to defend his title.

Singles
2021 Amex-Istanbul Challenger II
Champion	James Duckworth
Runner-up	Wu Tung-lin
Score	6–4, 6–2

Main article: 2021 Amex-Istanbul Challenger II

James Duckworth won the title after defeating Wu Tung-lin 6–4, 6–2 in the final.

Seeds

1. James Duckworth (champion)
2. Radu Albot (second round)
3. Daniel Elahi Galán (first round)
4. Yasutaka Uchiyama (quarterfinals)
5. Marc Polmans (second round)
6. Evgeny Donskoy (second round)
7. Illya Marchenko (second round)
8. Mohamed Safwat (withdrew)

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

Finals

	Semifinals							Final
	1	James Duckworth	69	6	6
		Quentin Halys	711	3	4
								1	James Duckworth	6	6
									Wu Tung-lin	4	2
		Borna Gojo	4	6	4
		Wu Tung-lin	6	3	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	J Duckworth	7	6
		L Giustino	5	1				1	J Duckworth	6	6
		A Müller	6	6					A Müller	3	2
	Q	N Chappell	4	2											1	J Duckworth	6	6
	WC	S Ağabigün	4	6	4											H Grenier	3	3
		H Grenier	6	3	6				H Grenier	6	6
		A Kuznetsov	64	1				6	E Donskoy	4	4
	6	E Donskoy	77	6																		1	J Duckworth	69	6	6
	4	Y Uchiyama	6	3	6																		Q Halys	711	3	4
		H Moriya	3	6	3			4	Y Uchiyama	3	6	6
	Q	Christopher Heyman	3	6	6			Q	C Heyman	6	3	4
		A Arnaboldi	6	2	4										4	Y Uchiyama	5	2
		B Tomic	0	1												Q Halys	7	6
		Q Halys	6	6					Q Halys	3	6	6
		T Fabbiano	5	2				7	I Marchenko	6	2	2
	7	I Marchenko	7	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	LL	G Blancaneaux	4	77	6
	Q	L Lokoli	6	65	1			LL	G Blancaneaux	6	7
		C-h Tseng	6	2	6				C-h Tseng	3	5
		R Marcora	1	6	4										LL	G Blancaneaux	66	4
		E Tiurnev	5	6	0											B Gojo	78	6
		E Karlovskiy	7	4	6				E Karlovskiy	1	77	65
		B Gojo	6	3	6				B Gojo	6	64	77
	3	DE Galán	4	6	2																		B Gojo	4	6	4
	5	M Polmans	6	6																			T-l Wu	6	3	6
	WC	K Kırcı	3	2				5	M Polmans	2	6	1
		T Ito	3	2					T-l Wu	6	3	6
		T-l Wu	6	6												T-l Wu	6	6
	Q	A Šetkić	6	6											Q	A Šetkić	3	2
	WC	VV Cornea	4	2				Q	A Šetkić	4	6	7
		M Ebden	4	6	1			2	R Albot	6	3	5
	2	R Albot	6	1	6

External links

• Main draw
• Qualifying draw