Singles
2018 Slovak Open
Champion	Alexander Bublik
Runner-up	Lukáš Rosol
Score	6–4, 6–4

Lukáš Lacko was the defending champion but lost in the second round to Egor Gerasimov.

Alexander Bublik won the title after defeating Lukáš Rosol 6–4, 6–4 in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Lukáš Rosol	7	77
		Dennis Novak	5	61
									Lukáš Rosol	4	4
								Q	Alexander Bublik	6	6
	Q	Alexander Bublik	7	77
		Matthias Bachinger	5	64

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	L Lacko	4	6	7
		S Robert	6	4	5			1	L Lacko	3	3
	PR	E Gerasimov	6	6				PR	E Gerasimov	6	6
	Q	D Masur	2	2											PR	E Gerasimov	77	3	4
	Q	J Härteis	3	3												L Rosol	65	6	6
		L Rosol	6	6					L Rosol	4	6	77
		R Molleker	4	3				8	R Bemelmans	6	3	62
	8	R Bemelmans	6	6																			L Rosol	7	77
	4	G García López	77	6																			D Novak	5	61
		D Brands	65	4				4	G García López	5	4
		S Ofner	611	6	6				S Ofner	7	6
		A Arnaboldi	713	3	4											S Ofner	1	6	3
		D Novak	6	6												D Novak	6	1	6
	WC	A Molčan	4	4					D Novak	6	6
	Alt	F Horanský	3	4				7	M Baghdatis	4	1
	7	M Baghdatis	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	M Trungelliti	2	4
		S Stakhovsky	6	6					S Stakhovsky	66	6	6
	WC	Tomáš Líška	2	1				WC	N Gombos	78	4	2
	WC	N Gombos	6	6												S Stakhovsky	3	65
		A Martin	6	3	5										Q	A Bublik	6	77
	Q	A Bublik	2	6	7			Q	A Bublik	6	6
		M Donati	3	2				3	L Sonego	4	2
	3	L Sonego	6	6																		Q	A Bublik	7	77
	6	R Ramanathan	6	7																			M Bachinger	5	64
		S Gutiérrez Ferrol	3	5				6	R Ramanathan	3	6	2
		M Bachinger	6	78					M Bachinger	6	3	6
	WC	L Klein	4	66												M Bachinger	6	78
	Alt	U Ignatik	6	61	66										2	E Donskoy	4	66
	Q	J Rodionov	2	77	78			Q	J Rodionov	77	4	65
		J Zopp	64	2				2	E Donskoy	64	6	77
	2	E Donskoy	77	6

References

• Main draw
• Qualifying draw