Singles
2021 Open Castilla y León
Champion	Benjamin Bonzi
Runner-up	Tim van Rijthoven
Score	7–6(12–10), 3–6, 6–4

Nicola Kuhn was the defending champion^[1] but chose not to defend his title.

Benjamin Bonzi won the title after defeating Tim van Rijthoven 7–6^(12–10), 3–6, 6–4 in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Hugo Grenier	67	2
		Tim van Rijthoven	79	6
									Tim van Rijthoven	610	6	4
								2	Benjamin Bonzi	712	3	6
	Q	Nicolas Moreno de Alboran	3	6	2
	2	Benjamin Bonzi	6	4	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	F López	6	77
	WC	N Sánchez Izquierdo	4	62				1	F López	63	6	6
	WC	Julio César Porras	78	6				WC	J César Porras	77	2	4
		H Moriya	66	2											1	F López	66	1
		H Grenier	6	6												H Grenier	78	6
		P Kotov	4	2					H Grenier	3	6	6
	Q	C Gimeno Valero	6	77				Q	C Gimeno Valero	6	3	2
	6	Q Halys	3	63																			H Grenier	67	2
	4	M-A Hüsler	78	64	5																		T van Rijthoven	79	6
		T van Rijthoven	66	77	7				T van Rijthoven	4	6	6
		M Jaziri	65	6	6				M Jaziri	6	3	3
		JC Aragone	77	2	1											T van Rijthoven	6	77
	WC	A Moro Cañas	3	78	6										7	M Bourgue	4	63
		G Oliveira	6	66	1			WC	A Moro Cañas	4	2
	Alt	FC Jianu	3	4				7	M Bourgue	6	6
	7	M Bourgue	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	A Çelikbilek	6	6
	Alt	J Härteis	3	4				8	A Çelikbilek	6	3	6
		I Sijsling	1	3					T Gabashvili	3	6	3
		T Gabashvili	6	6											8	A Çelikbilek	4	2
	Q	L Vanni	4	3											Q	N Moreno de Alboran	6	6
	Q	N Moreno de Alboran	6	6				Q	N Moreno de Alboran	6	6
		R Ortega Olmedo	6	64	4			9	C İlkel	4	0
	9	C İlkel	3	77	6																	Q	N Moreno de Alboran	3	6	2
	5	F Ferreira Silva	4	0r																		2	B Bonzi	6	4	6
	Q	D Svrčina	6	0				Q	D Svrčina	6	3	6
		R Olivo	7	6					R Olivo	4	6	4
		A Menéndez Maceiras	5	2											Q	D Svrčina	3	4
		M Bašić	4	1											2	B Bonzi	6	6
		M Viola	6	6					M Viola	1	2
	Alt	A Andreev	77	4	63			2	B Bonzi	6	6
	2	B Bonzi	62	6	77

References

External links

• Main draw
• Qualifying draw