2021 Bol Open – Singles

Tamara Zidanšek was the two-time defending champion, having won the last edition in 2019,^[1] however she was unable to defend her title as she was still competing at the 2021 French Open, reaching the semi-final of the Grand Slam.

Singles
2021 Bol Open
Champion	Jasmine Paolini
Runner-up	Arantxa Rus
Score	6–2, 7–6(7–4)

Main article: 2021 Bol Open

Jasmine Paolini won the title, defeating Arantxa Rus in the final, 6–2, 7–6^(7–4).

Seeds

1. Anna Blinkova (semifinals)
2. Arantxa Rus (final)
3. Jasmine Paolini (champion)
4. Martina Trevisan (quarterfinals)
5. Sara Errani (second round)
6. Liudmila Samsonova (second round)
7. Aliona Bolsova (first round)
8. Tímea Babos (first round)

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	Anna Blinkova	2	2
	3	Jasmine Paolini	6	6
								3	Jasmine Paolini	6	77
								2	Arantxa Rus	2	64
		Irina Bara	2	1
	2	Arantxa Rus	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	A Blinkova	3	6	6
	PR	P Hon	6	0	1			1	A Blinkova	6	6
		UM Arconada	77	3	2			Q	A Cadanțu	2	1
	Q	A Cadanțu	61	6	6										1	A Blinkova	6	4	7
	PR	A Dulgheru	4	4												B Haas	4	6	5
		B Haas	6	6					B Haas	6	6
	WC	A Konjuh	6	63	4			6	L Samsonova	3	4
	6	L Samsonova	1	77	6																	1	A Blinkova	2	2
	3	J Paolini	6	6																		3	J Paolini	6	6
		V Kužmová	4	1				3	J Paolini	6	4	6
	Q	L Sun	3	67					O Govortsova	1	6	3
		O Govortsova	6	79											3	J Paolini	6	6
		N Párrizas Díaz	6	5	3											K Kučová	1	1
		K Kučová	4	7	6				K Kučová	3	6	6
	WC	T Mrdeža	6	6				WC	T Mrdeža	6	4	3
	8	T Babos	1	2

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	A Bolsova	4	2
	WC	T Lukas	6	6				WC	T Lukas	3	0
		K Kawa	4	6	5				I Bara	6	6
		I Bara	6	4	7											I Bara	2	7	6
		G Minnen	2	1r											4	M Trevisan	6	5	0
		AK Schmiedlová	6	3					AK Schmiedlová	4	1
		R Zarazúa	2	0				4	M Trevisan	6	6
	4	M Trevisan	6	6																			I Bara	2	1
	5	S Errani	6	6																		2	A Rus	6	6
	WC	J Fett	3	3				5	S Errani	77	5	61
	Q	E Gorgodze	6	3	4				C Liu	63	7	77
		C Liu	4	6	6											C Liu	6	5	4
	Q	D Gálfi	2	3											2	A Rus	1	7	6
		K Zavatska	6	6					K Zavatska	1	0r
		Y Bonaventure	3	3				2	A Rus	6	2
	2	A Rus	6	6

Qualifying

Seeds

1. Lara Arruabarrena (qualifying competition)
2. Asia Muhammad (qualifying competition)
3. Whitney Osuigwe (qualifying competition)
4. Ekaterine Gorgodze (qualified)

Qualifiers

1. Alexandra Cadanțu
2. Dalma Gálfi
3. Lulu Sun
4. Ekaterine Gorgodze

Draw

First qualifier

	Qualifying competition
	1	Lara Arruabarrena	0	5
		Alexandra Cadanțu	6	7

Second qualifier

	Qualifying competition
	2	Asia Muhammad	6	1	2
		Dalma Gálfi	3	6	6

Third qualifier

	Qualifying competition
	3	Whitney Osuigwe	6	2	4
	WC	Lulu Sun	3	6	6

Fourth qualifier

	Qualifying competition
	4	Ekaterine Gorgodze	6	6
	WC	Ayline Samardžić	0	0