2021 Upper Austria Ladies Linz – Singles

Alison Riske won the title, defeating Jaqueline Cristian in the final, 2–6, 6–2, 7–5.^[1][2]

Singles
2021 Upper Austria Ladies Linz
Champion	Alison Riske
Runner-up	Jaqueline Cristian
Score	2–6, 6–2, 7–5
Draw	28
Seeds	8

Main article: 2021 Upper Austria Ladies Linz

Aryna Sabalenka was the defending champion,^[3] but she qualified to compete at the WTA Finals instead.^[4]

Seeds

The top four seeds received a bye into the second round.

1. Emma Raducanu (second round)
2. Simona Halep (semifinals, withdrew)
3. Danielle Collins (semifinals, retired due to shoulder injury)
4. Veronika Kudermetova (quarterfinals)
5. Ekaterina Alexandrova (first round)
6. Sorana Cîrstea (withdrew)
7. Jasmine Paolini (quarterfinals)
8. Alison Riske (champion)

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
	8	Alison Riske	7	0
	3	Danielle Collins	5	0r
								8	Alison Riske	2	6	7
								LL	Jaqueline Cristian	6	2	5
	LL	Jaqueline Cristian	w/o
	2/WC	Simona Halep

Top half

	First round							Second round							Quarterfinals							Semifinals
								1/WC	E Raducanu	1	77	5
	Q	K Kozlova	6	2	3			Q	Xin Wang	6	60	7
	Q	Xin Wang	2	6	6										Q	Xin Wang	3	5
		A Cornet	79	6											8	A Riske	6	7
	WC	J Grabher	67	4					A Cornet	4	4
	PR	M Barthel	3	1				8	A Riske	6	6
	8	A Riske	6	6																		8	A Riske	7	0
																						3	D Collins	5	0r
								3	D Collins	6	6
		G Minnen	6	6					G Minnen	1	2
		O Dodin	4	3											3	D Collins	7	6
		A Van Uytvanck	6	6												A Van Uytvanck	5	3
	WC	S Kraus	1	0					A Van Uytvanck	6	6
	Q	L Tsurenko	6	77				Q	L Tsurenko	0	3
	5	E Alexandrova	4	62

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	LL	J Cristian	2	6	7
		K Rakhimova	6	2	5			LL	J Cristian	5
	Q	H Tan	2	4					R Peterson	2r
		R Peterson	6	6											LL	J Cristian	6	77
		A Kalinina	6	6											4	V Kudermetova	2	65
		M Trevisan	3	4					A Kalinina	6	4	2
								4	V Kudermetova	4	6	6
																						LL	J Cristian	w/o
	7	J Paolini	6	3	6																	2/WC	S Halep
		D Yastremska	4	6	2			7	J Paolini	6	2	6
		C Burel	4	1					S Zheng	1	6	4
		S Zheng	6	6											7	J Paolini	6	5	0
		F Ferro	2	6	2										2/WC	S Halep	4	7	6
		A Sasnovich	6	3	6				A Sasnovich	5	3
								2/WC	S Halep	7	6

Qualifying

Seeds

1. Jaqueline Cristian (qualifying competition, lucky loser)
2. Wang Xinyu (qualified)
3. Ana Bogdan (qualifying competition)
4. Harmony Tan (qualified)
5. Kristína Kučová (qualifying competition)
6. Viktoriya Tomova (first round)
7. Lesia Tsurenko (qualified)
8. Kamilla Rakhimova (moved to main draw)

Qualifiers

1. Lesia Tsurenko
2. Wang Xinyu
3. Kateryna Kozlova
4. Harmony Tan

Lucky loser

1. Jaqueline Cristian

First qualifier

	First round							Qualifying competition
	1	Jaqueline Cristian	6	6
	PR	Irina Khromacheva	3	2
								1	Jaqueline Cristian	7	4	1
								7	Lesia Tsurenko	5	6	6
	PR	Mandy Minella	2	1
	7	Lesia Tsurenko	6	6

Second qualifier

	First round							Qualifying competition
	2	Wang Xinyu	6	6
		Anastasia Gasanova	2	2
								2	Wang Xinyu	4	6	6
								Alt	Leonie Küng	6	2	3
	WC	Mavie Österreicher	5	61
	Alt	Leonie Küng	7	77

Third qualifier

	First round							Qualifying competition
	3	Ana Bogdan	6	4	77
	WC	Eva Lys	4	6	64
								3	Ana Bogdan	62	4
								PR	Kateryna Kozlova	77	6
	PR	Kateryna Kozlova	6	2	6
	6	Viktoriya Tomova	1	6	2

Fourth qualifier

	First round							Qualifying competition
	4	Harmony Tan	6	6
		Aleksandra Krunić	4	1
								4	Harmony Tan	5	6	6
								5	Kristína Kučová	7	3	4
		Mihaela Buzărnescu	2	77	3
	5	Kristína Kučová	6	64	6