2021 Split Open – Singles

Francisco Cerúndolo was the defending champion but chose not to defend his title.

Singles
2021 Split Open
Champion	Blaž Rola
Runner-up	Blaž Kavčič
Score	2–6, 6–3, 6–2

Main article: 2021 Split Open

Blaž Rola won the title after defeating Blaž Kavčič 2–6, 6–3, 6–2 in the final.

Seeds

1. Pedro Sousa (first round, retired)
2. Marc Polmans (first round)
3. Sebastian Ofner (first round)
4. Mohamed Safwat (first round)
5. Danilo Petrović (quarterfinals)
6. Blaž Rola (champion)
7. Kimmer Coppejans (second round)
8. Filip Horanský (first round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

Finals

	Semifinals							Final
	Alt	Kacper Żuk	6	3	2
	Q	Blaž Kavčič	2	6	6
								Q	Blaž Kavčič	6	3	2
								6	Blaž Rola	2	6	6
		Andrea Collarini	63	77	4
	6	Blaž Rola	77	63	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	P Sousa	2r
	Alt	K Żuk	1					Alt	K Żuk	6	6
		J Clarke	61	0				WC	N Serdarušić	4	2
	WC	N Serdarušić	77	6											Alt	K Żuk	78	6
	Q	A Santillan	2	0r											PR	T Kokkinakis	66	3
	SE	Z Kolář	6	5				SE	Z Kolář	63	1
	PR	T Kokkinakis	3	6	6			PR	T Kokkinakis	77	6
	8	F Horanský	6	4	4																	Alt	K Żuk	6	3	2
	4	M Safwat	3	3																		Q	B Kavčič	2	6	6
	Q	B Kavčič	6	6				Q	B Kavčič	4	79	6
		E Ymer	6	6					E Ymer	6	67	4
		A Müller	0	4											Q	B Kavčič	4	6	6
		A Vukic	6	6												A Vukic	6	2	2
	WC	M Poljičak	1	1					A Vukic	2	6	6
		B Tomic	2	6	3			7	K Coppejans	6	4	4
	7	K Coppejans	6	4	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	D Petrović	6	6
		L Rosol	1	3				5	D Petrović	6	6
		J Domingues	5	3					M Marterer	1	3
		M Marterer	7	6											5	D Petrović	2	3
		A Bolt	4	2												A Collarini	6	6
	Q	U Ignatik	6	6				Q	U Ignatik	6	2	1
		A Collarini	6	6					A Collarini	2	6	6
	3	S Ofner	4	4																			A Collarini	63	77	4
	6	B Rola	6	6																		6	B Rola	77	63	6
		D Popko	3	4				6	B Rola	6	7
	WC	D Ajduković	2	6	7			WC	D Ajduković	1	5
	PR	D Brown	6	4	5										6	B Rola	6	6
	Q	M Bašić	77	6											Q	M Bašić	2	4
		C İlkel	64	3				Q	M Bašić	77	6
		R Haase	6	4	77				R Haase	64	3
	2	M Polmans	3	6	64

External links

• Main draw
• Qualifying draw