Singles
2017 Torneo Internacional Challenger León
Champion	Adrián Menéndez Maceiras
Runner-up	Roberto Quiroz
Score	6–4, 3–6, 6–3

Michael Berrer was the defending champion but chose not to defend his title.

Adrián Menéndez Maceiras won the title after defeating Roberto Quiroz 6–4, 3–6, 6–3 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	Q	Roberto Quiroz	6	6
		Rajeev Ram	4	3
								Q	Roberto Quiroz	4	6	3
								Q	Adrián Menéndez Maceiras	6	3	6
	Alt	Nicolás Jarry	5	4
	Q	Adrián Menéndez Maceiras	7	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	V Estrella Burgos	4	77	6
		D Novikov	6	61	0			1	V Estrella Burgos	6	6
	LL	L Broady	6	6				LL	L Broady	2	2
	SE	D Shapovalov	2	3											1	V Estrella Burgos	64	4
		F Coria	4	6	6										Q	R Quiroz	77	6
	WC	T Hank	6	4	4				F Coria	5	1
	Q	R Quiroz	6	6				Q	R Quiroz	7	6
	8	J Jung	1	2																		Q	R Quiroz	6	6
	4	S Kozlov	6	6																			R Ram	4	3
	Q	D Petrović	4	2				4	S Kozlov	1	64
		R Ram	6	2	6				R Ram	6	77
		A Sarkissian	3	6	4											R Ram	77	6
		M Arévalo	64	2												M Bašić	62	3
		M Bašić	77	6					M Bašić	6	3	78
		I Sijsling	4	4				5	J Souza	2	6	66
	5	J Souza	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	T Sandgren	2	77	6
	Alt	M McDonald	6	62	3			6	T Sandgren	6	4	5
		M Safwat	0	4				Alt	N Jarry	2	6	7
	Alt	N Jarry	6	6											Alt	N Jarry	3	7	77
	Q	Y Hanfmann	6	6											3	V Pospisil	6	5	62
		J-P Smith	2	2				Q	Y Hanfmann	62	4
		A Santillan	3	6	65			3	V Pospisil	77	6
	3	V Pospisil	6	3	77																	Alt	N Jarry	5	4
	7	T Gabashvili	6	6																		Q	A Menéndez Maceiras	7	6
	WC	S González	2	4				7	T Gabashvili	77	6
		P Krstin	4	4					M Krueger	61	4
		M Krueger	6	6											7	T Gabashvili	77	4	3
	WC	H Hach Verdugo	6	4	5										Q	A Menéndez Maceiras	65	6	6
	Q	A Menéndez Maceiras	4	6	7			Q	A Menéndez Maceiras	1	6	6
	WC	M Sánchez	3	6	3			2	E Escobedo	6	3	3
	2	E Escobedo	6	3	6

References

• Main draw
• Qualifying draw