Singles
2018 Guzzini Challenger
Champion	Daniel Brands
Runner-up	Adrián Menéndez Maceiras
Score	7–5, 6–3

Viktor Galović was the defending champion but lost in the semifinals to Adrián Menéndez Maceiras.

Daniel Brands won the title after defeating Menéndez Maceiras 7–5, 6–3 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	PR	Daniel Brands	6	6
		Roberto Quiroz	0	3
								PR	Daniel Brands	7	6
								5	Adrián Menéndez Maceiras	5	3
	5	Adrián Menéndez Maceiras	6	6
	6	Viktor Galović	1	2

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	R Ramanathan	65	68
	PR	D Brands	77	710				PR	D Brands	6	7
	WC	Enrico Dalla Valle	4	4					B Zapata Miralles	4	5
		B Zapata Miralles	6	6											PR	D Brands	6	79
		F Argüello	6	3	6										7	S Caruso	4	67
	WC	R Brancaccio	1	6	3				F Argüello	4	2
		Ze Zhang	4	6	5			7	S Caruso	6	6
	7	S Caruso	6	3	7																	PR	D Brands	6	6
	3	Q Halys	6	65	4																		R Quiroz	0	3
	WC	A Vavassori	1	77	6			WC	A Vavassori	4	3
		D Petrović	2	6	2				R Quiroz	6	6
		R Quiroz	6	3	6											R Quiroz	6	6
		DE Galán	2	4											8	H Moriya	4	2
		L Rosol	6	6					L Rosol	6	4	2
		A Arnaboldi	66	6	3			8	H Moriya	4	6	6
	8	H Moriya	78	4	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	A Menéndez Maceiras	6	6
	WC	Giacomo Miccini	2	1				5	A Menéndez Maceiras	6	4	6
	Q	A Šetkić	4	6	6			Q	A Šetkić	2	6	4
	Q	MT Barrios Vera	6	3	4										5	A Menéndez Maceiras	6	6
		L Giustino	4	6	6											L Giustino	4	2
	Q	A Basso	6	4	4				L Giustino	6	62	6
		A Hoang	7	6					A Hoang	3	77	0
	4	A Bublik	5	1																		5	A Menéndez Maceiras	6	6
	6	V Galović	65	6	77																	6	V Galović	1	2
	Q	A Artuñedo	77	1	64			6	V Galović	6	6
		R Cid Subervi	6	66	2				D Guez	3	4
		D Guez	4	78	6										6	V Galović	7	6
		P Martínez	4	4											2	I Ivashka	5	4
		E Gerasimov	6	6					E Gerasimov	5	4
		I Marchenko	3	3				2	I Ivashka	7	6
	2	I Ivashka	6	6

References

• Main draw
• Qualifying draw