Singles
2018 Torneo Internacional Challenger León
Final
Champion	Christopher Eubanks
Runner-up	John-Patrick Smith
Score	6–4, 3–6, 7–6(7–4)
Events
Singles Doubles
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Adrián Menéndez Maceiras was the defending champion but lost in the second round to John-Patrick Smith.

Christopher Eubanks won the title after defeating Smith 6–4, 3–6, 7–6^(7–4) in the final.

	Semifinals							Final
		John-Patrick Smith	6	6
		Alejandro González	4	3
									John-Patrick Smith	4	6	64
									Christopher Eubanks	6	3	77
		Christopher Eubanks	4	6	6
	Q	Roberto Quiroz	6	4	3

	First round							Second round							Quarterfinals							Semifinals
	1	A Menéndez Maceiras	7	77
		A Šetkić	5	62				1	A Menéndez Maceiras	716	4	3
		E Leshem	64	0					J-P Smith	614	6	6
		J-P Smith	77	6												J-P Smith	6	6
	Q	J Ward	6	6											7	F Peliwo	1	4
	WC	José Antonio Rodríguez Rodríguez	2	0				Q	J Ward	2	4
	WC	T Hank	5	4				7	F Peliwo	6	6
	7	F Peliwo	7	6																			J-P Smith	6	6
	4	V Estrella Burgos	77	4	4																		A González	4	3
		DE Galán	65	6	6				DE Galán	2	6	4
		A González	6	6					A González	6	3	6
		B Schnur	4	4												A González	3	6	6
		A Pavić	6	6												A Pavić	6	4	1
	WC	L Patiño	3	3					A Pavić	6	6
	WC	M Sánchez	4	65				6	D King	4	2
	6	D King	6	77

	First round							Second round							Quarterfinals							Semifinals
	5	K King	2	2
	Q	R Cid Subervi	6	6				Q	R Cid Subervi	6	4	6
		U Humbert	6	6					U Humbert	2	6	3
		P Krstin	3	5r											Q	R Cid Subervi	5	1
	LL	Tobias Simon	66	64												C Eubanks	7	6
		C Eubanks	78	77					C Eubanks	6	6
		B Mousley	3	7	4			3	D Novikov	3	3
	3	D Novikov	6	5	6																		C Eubanks	4	6	6
	8	M Arévalo	5	6	2																	Q	R Quiroz	6	4	3
	Q	R Statham	7	4	6			Q	R Statham	6	65	2
		C Gómez-Herrera	4	5				Q	R Quiroz	3	77	6
	Q	R Quiroz	6	7											Q	R Quiroz	6	712
		J Hernández-Fernández	6	4	6											A Sarkissian	4	610
		D Petrović	3	6	4				J Hernández-Fernández	62	64
		A Sarkissian	5						A Sarkissian	77	77
	2	M Moraing	2r

• Main draw
• Qualifying draw