Singles
2018 Swiss Open Gstaad
Champion	Matteo Berrettini
Runner-up	Roberto Bautista Agut
Score	7–6(11–9), 6–4

Fabio Fognini was the defending champion, but lost in the second round to Jürgen Zopp.

Matteo Berrettini won his first ATP World Tour title, defeating Roberto Bautista Agut in the final, 7–6^(11–9), 6–4.

Seeds

The top four seeds receive a bye into the second round.

Draw

Finals

	Semifinals							Final
	Q	Jürgen Zopp	4	66
		Matteo Berrettini	6	78
									Matteo Berrettini	711	6
								2	Roberto Bautista Agut	69	4
		Laslo Đere	77	4	4
	2	Roberto Bautista Agut	65	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
								1	F Fognini	1	6	3
	Q	Y Hanfmann	6	3	64			Q	J Zopp	6	3	6
	Q	J Zopp	3	6	77										Q	J Zopp	3	6	6
	WC	M-A Hüsler	68	6	77										Q	F Bagnis	6	4	3
	WC	N Almagro	710	3	64			WC	M-A Hüsler	610	1
	Q	F Bagnis	4	6	7			Q	F Bagnis	712	6
	6	J Sousa	6	3	5																	Q	J Zopp	4	66
																							M Berrettini	6	78
								4	A Rublev	3	3
		M Berrettini	6	6					M Berrettini	6	6
		R Albot	4	2												M Berrettini	6	6
	LL	O Roca Batalla	6	64	6										8	F López	4	3
		P Lorenzi	3	77	3			LL	O Roca Batalla	6	64	4
		F Delbonis	3	63				8	F López	4	77	6
	8	F López	6	77

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	R Haase	1	6	3
	LL	V Galović	6	3	6			LL	V Galović	3	6	6
	WC	F Auger-Aliassime	6	77				WC	F Auger-Aliassime	6	4	2
		G Andreozzi	3	63											LL	V Galović	77	3	65
		L Đere	78	7												L Đere	65	6	77
		D Istomin	66	5					L Đere	6	1	6
								3	B Ćorić	4	6	1
																							L Đere	77	4	4
	7	G García López	63	2																		2	R Bautista Agut	65	6	6
		R Carballés Baena	77	6					R Carballés Baena	4	6	64
		E Ymer	69	5					T Daniel	6	4	77
		T Daniel	711	7												T Daniel	5	1
		J Munar	6	6											2	R Bautista Agut	7	6
	Q	A Menéndez Maceiras	1	0					J Munar	6	3	2
								2	R Bautista Agut	2	6	6

Qualifying

Qualifying draw

First qualifier

	First round							Qualifying competition
	1	Yannick Hanfmann	6	6
	WC	Luca Margaroli	4	2
								1	Yannick Hanfmann	64	77	6
								8	Viktor Galović	77	65	4
	Alt	Gonzalo Escobar	3	6	65
	8	Viktor Galović	6	3	77

Second qualifier

	First round							Qualifying competition
	2	Jürgen Zopp	6	6
	Alt	Andrés Molteni	2	3
								2	Jürgen Zopp	6	6
									Oriol Roca Batalla	3	4
		Oriol Roca Batalla	6	7
	7	Kenny de Schepper	2	5

Third qualifier

	First round							Qualifying competition
	Alt	Yann Marti	6	6
	Alt	Adrian Bodmer	4	3
								Alt	Yann Marti	d
								5	Facundo Bagnis
		Kevin Krawietz	3	6	2
	5	Facundo Bagnis	6	4	6

Fourth qualifier

	First round							Qualifying competition
	4	Adrián Menéndez Maceiras	6	7
	PR	Santiago Giraldo	3	5
								4	Adrián Menéndez Maceiras	6	6
								WC	Jakub Paul	3	0
	WC	Jakub Paul	4	6	6
	6	Matteo Donati	6	4	4

References

• Main draw
• Qualifying draw