Singles
2018 Jalisco Open
Final
Champion	Marcelo Arévalo
Runner-up	Christopher Eubanks
Score	6–4, 5–7, 7–6(7–4)
Events
Singles Doubles
← 2017 · Jalisco Open

Mirza Bašić was the defending champion but chose not to defend his title.

Marcelo Arévalo won the title after defeating Christopher Eubanks 6–4, 5–7, 7–6^(7–4) in the final.

	Semifinals							Final
		Christopher Eubanks	6	77
		Peđa Krstin	2	65
									Christopher Eubanks	4	7	64
								6	Marcelo Arévalo	6	5	77
	6	Marcelo Arévalo	6	2
		Brayden Schnur	3	0r

	First round							Second round							Quarterfinals							Semifinals
	1	A Menéndez Maceiras	65	6	7
		B Mousley	77	2	5			1	A Menéndez Maceiras	2	5
		D Petrović	6	7					D Petrović	6	7
	WC	T Hank	4	5												D Petrović	4	4
	WC	G López Villaseñor	1	6	65											C Eubanks	6	6
		C Eubanks	6	3	77				C Eubanks	77	78
		A Šetkić	4	2				7	V Estrella Burgos	65	66
	7	V Estrella Burgos	6	6																			C Eubanks	6	77
	3	D Novikov	63	3																			P Krstin	2	65
		P Krstin	77	6					P Krstin	6	6
	Q	J Ward	4	710	3			WC	M Sánchez	3	1
	WC	M Sánchez	6	68	6											P Krstin	6	1	6
	Alt	A Pavić	7	5	6										8	D King	2	6	2
		E Leshem	5	7	3			Alt	A Pavić	3	6	4
		R Quiroz	6	3	3			8	D King	6	2	6
	8	D King	3	6	6

	First round							Second round							Quarterfinals							Semifinals
	6	M Arévalo	6	6
	Q	F Gaio	1	4				6	M Arévalo	6	6
		Christopher Heyman	4	65					A Sarkissian	3	3
		A Sarkissian	6	77											6	M Arévalo	77	3	6
		J-P Smith	6	65	6											J-P Smith	64	6	3
		DE Galán	2	77	1				J-P Smith	3	6	6
	WC	L Patiño	4	67				4	F Peliwo	6	1	2
	4	F Peliwo	6	79																		6	M Arévalo	6	2
	5	K King	6	3	3																		B Schnur	3	0r
		B Schnur	2	6	6				B Schnur	7	4	77
		S Giraldo	6	3	1r			Alt	J Hernández-Fernández	5	6	65
	Alt	J Hernández-Fernández	2	6	4											B Schnur	6	77
	Q	J Souza	6	3	5										2	M Moraing	3	64
	Q	G Escobar	2	6	7			Q	G Escobar	6	5	2
		B Zapata Miralles	1	61				2	M Moraing	2	7	6
	2	M Moraing	6	77

• Main Draw
• Qualifying Draw