Singles
2021 Puerto Vallarta Open
Champion	Daniel Altmaier
Runner-up	Alejandro Tabilo
Score	6–3, 3–6, 6–3

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

Daniel Altmaier won the title after defeating Alejandro Tabilo 6–3, 3–6, 6–3 in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Yosuke Watanuki	3	2
	3	Alejandro Tabilo	6	6
								3	Alejandro Tabilo	3	6	3
								2	Daniel Altmaier	6	3	6
	5	Michael Mmoh	4	2
	2	Daniel Altmaier	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	P Cuevas	7	6
		A Kovacevic	5	4				1	P Cuevas	77	0
	Alt	MF Descotte	62	7	6			Alt	MF Descotte	63	0r
	WC	G López Villaseñor	77	5	0										1	P Cuevas	6	4	0r
		Yo Watanuki	6	6												Yo Watanuki	4	6	2
	PR	R Statham	3	2					Yo Watanuki	65	7	6
	Q	L Draxl	3	1				7	T-l Wu	77	5	3
	7	T-l Wu	6	6																			Yo Watanuki	3	2
	3	A Tabilo	6	6																		3	A Tabilo	6	6
		A Menéndez Maceiras	3	2				3	A Tabilo	6	6
	WC	Milledge Cossu	1	3					D Young	2	1
		D Young	6	6											3	A Tabilo	6	6
		A Rybakov	7	4r											8	T Ito	2	2
	Q	A Hernández	5	4				Q	A Hernández	2	3
		G Brouwer	2	63				8	T Ito	6	6
	8	T Ito	6	77

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	M Mmoh	6	6
		N Chappell	2	3				5	M Mmoh	7	4	6
	WC	J Shang	6	6				WC	J Shang	5	6	4
	Alt	M Cuevas	4	4											5	M Mmoh	79	6
		K Uchida	6	6												K Uchida	67	3
	PR	A Sarkissian	3	4					K Uchida	6	6
		A Galarneau	7	64	7				A Galarneau	4	2
	4	E Escobedo	5	77	5																	5	M Mmoh	4	2
	6	C Harrison	6	6																		2	D Altmaier	6	6
		R Ortega Olmedo	4	0				6	C Harrison	1	69
	Q	Christian Langmo	7	4	5				Z Svajda	6	711
		Z Svajda	5	6	7											Z Svajda	6	68	3
	Q	G Nanda	6	6											2	D Altmaier	4	710	6
		JC Aragone	2	0				Q	G Nanda	3	3
		Mi Redlicki	65	1				2	D Altmaier	6	6
	2	D Altmaier	77	6

References

External links

• Main draw
• Qualifying draw