Jaume Munar was the defending champion but lost in the final to Carlos Taberner 4–6, 1–6.

This was the second edition of the tournament and second of two editions of the tournament to start the 2021 ATP Challenger Tour year.^[1]

	Semifinals							Final
		Carlos Taberner	7	6
	Q	Tomás Martín Etcheverry	5	2
									Carlos Taberner	6	6
								2	Jaume Munar	4	1
		Alessandro Giannessi	0	0r
	2	Jaume Munar	6	2

	First round							Second round							Quarterfinals							Semifinals
	1	J Sousa	1	4
		C Taberner	6	6					C Taberner	6	65	6
	Q	D Ajduković	6	2	4				E Gómez	0	77	1
		E Gómez	3	6	6											C Taberner	6	77
	Q	F Mena	64	3											6	F Bagnis	3	60
		D Popko	77	6					D Popko	1	2
	WC	M İlhan	3	4				6	F Bagnis	6	6
	6	F Bagnis	6	6																			C Taberner	7	6
	4	T Seyboth Wild	6	6																		Q	TM Etcheverry	5	2
		L Giustino	4	3				4	T Seyboth Wild	2	6	4
		J Menezes	6	1	2			Q	TM Etcheverry	6	3	6
	Q	TM Etcheverry	2	6	6										Q	TM Etcheverry	6	6
		P Lorenzi	7	4	2											L Mayer	3	4
	Q	A Santillan	5	6	6			Q	A Santillan	64	2
		L Mayer	6	6					L Mayer	77	6
	7	L Musetti	4	3

	First round							Second round							Quarterfinals							Semifinals
	8	D Altmaier	62	2
		A Giannessi	77	6					A Giannessi	6	6
		J Domingues	1	4					M Safwat	3	4
		M Safwat	6	6												A Giannessi	5	7	6
		A Tabilo	78	6												A Tabilo	7	5	1
	WC	S Ağabigün	66	1					A Tabilo	2	6	6
	SE	T Robredo	2	7	0			3	DE Galán	6	4	4
	3	DE Galán	6	5	6																		A Giannessi	0	0r
	5	J Kovalík	6	6																		2	J Munar	6	2
	SE	C İlkel	3	1				5	J Kovalík	6	6
		T Griekspoor	6	6					T Griekspoor	1	2
	Alt	E Escobedo	3	2											5	J Kovalík	5	77	1
	LL	GM Moroni	6	4	66										2	J Munar	7	63	6
		R Ramanathan	4	6	78				R Ramanathan	4	5
	WC	E Kırkın	3	3				2	J Munar	6	7
	2	J Munar	6	6

• Main draw
• Qualifying draw