2021 Sánchez-Casal Cup – Singles

Carlos Alcaraz was the defending champion but chose not to defend his title.

Singles
2021 Sánchez-Casal Cup
Champion	Dimitar Kuzmanov
Runner-up	Hugo Gaston
Score	6–3, 6–0

Main article: 2021 Sánchez-Casal Cup

Dimitar Kuzmanov won the title after defeating Hugo Gaston 6–3, 6–0 in the final.

Seeds

1. Hugo Gaston (final)
2. Alex Molčan (semifinals)
3. Bernabé Zapata Miralles (first round, retired)
4. Damir Džumhur (second round)
5. Nikola Milojević (second round)
6. Marc Polmans (first round)
7. Cedrik-Marcel Stebe (withdrew)
8. Jiří Lehečka (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
	1	Hugo Gaston	6	0	6
		Alexandre Müller	2	6	0
								1	Hugo Gaston	3	0
									Dimitar Kuzmanov	6	6
		Dimitar Kuzmanov	7	77
	2	Alex Molčan	5	65

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	H Gaston	7	6
		A Collarini	5	2				1	H Gaston	6	6
	LL	O Krutykh	6	6				LL	O Krutykh	0	2
	WC	P Llamas Ruiz	2	2											1	H Gaston	6	6
		F Horanský	6	2	7										Q	N Álvarez Varona	2	1
		M Marterer	4	6	5				F Horanský	4	3
	Q	N Álvarez Varona	6	77				Q	N Álvarez Varona	6	6
	8	J Lehečka	2	61																		1	H Gaston	6	0	6
	3	B Zapata Miralles	2	0r																			A Müller	2	6	0
		J Barranco Cosano	6	1					J Barranco Cosano	3	2
	Alt	A Andreev	4	1r					A Müller	6	6
		A Müller	6	4												A Müller	6	6
		D Popko	6	6											Q	M Martineau	3	2
		T Lamasine	3	2					D Popko	62	2
	Q	M Martineau	6	6				Q	M Martineau	77	6
	6	M Polmans	4	3

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	LL	A López San Martín	1	0
		N Borges	6	6					N Borges	66	5
	WC	N Sánchez Izquierdo	5	2					T Gabashvili	78	7
		T Gabashvili	7	6												T Gabashvili	2	0
		D Kuzmanov	6	6												D Kuzmanov	6	6
		T Robredo	0	1					D Kuzmanov	6	6
	Q	Georgii Kravchenko	6	3	1			4	D Džumhur	4	4
	4	D Džumhur	3	6	6																		D Kuzmanov	7	77
	5	N Milojević	7	0	6																	2	A Molčan	5	65
	Q	Y Oliel	5	6	4			5	N Milojević	5	2
		P Krstin	4	4					N Kuhn	7	6
		N Kuhn	6	6												N Kuhn	3	2
		M Guinard	6	64	1										2	A Molčan	6	6
		T Skatov	3	77	6				T Skatov	1	66
	WC	A Moro Cañas	1	3				2	A Molčan	6	78
	2	A Molčan	6	6

External links

• Main draw
• Qualifying draw