2025 Swiss Indoors – Singles

Singles
2025 Swiss Indoors
Champion	João Fonseca
Runner-up	Alejandro Davidovich Fokina
Score	6–3, 6–4
Draw	32 (4 Q / 3 WC )
Seeds	8

João Fonseca defeated Alejandro Davidovich Fokina in the final, 6–3, 6–4 to win the singles tennis title at the 2025 Swiss Indoors.^[1] It was his second ATP Tour title and first ATP 500 title.^[2] Fonseca was the second-youngest champion in tournament history, after Jim Courier in 1989, and the third-youngest ATP 500 champion since the current format was introduced in 2009. Fonseca was also the first Brazilian to win an ATP 500 tournament since Gustavo Kuerten in 2001.

Giovanni Mpetshi Perricard was the defending champion,^[3] but lost in the first round to Fonseca.^[4]

Key

	Semifinals							Final
		Ugo Humbert	64	1r
	8	Alejandro Davidovich Fokina	77	3
								8	Alejandro Davidovich Fokina	3	4
									João Fonseca	6	6
		João Fonseca	77	7
		Jaume Munar	64	5

	First round							Second round							Quarterfinals							Semifinals
	1	T Fritz	4	77	7
	WC	V Vacherot	6	64	5			1	T Fritz	3	4
		S Korda	3	4					U Humbert	6	6
		U Humbert	6	6												U Humbert	77	6
		S Báez	3	4											Q	R Opelka	60	4
	Q	R Opelka	6	6				Q	R Opelka	77	67	6
	LL	B van de Zandschulp	6	6				LL	B van de Zandschulp	65	79	3
	6	J Lehečka	2	2																			U Humbert	64	1r
	4	C Ruud	6	77																		8	A Davidovich Fokina	77	3
	LL	Q Halys	1	63				4	C Ruud	6	77
		M Kecmanović	1	63				WC	S Wawrinka	4	65
	WC	S Wawrinka	6	77											4	C Ruud	61	0r
	PR	J Brooksby	6	6											8	A Davidovich Fokina	77	0
		A Müller	4	3				PR	J Brooksby	78	4	5
		L Sonego	62	4				8	A Davidovich Fokina	66	6	7
	8	A Davidovich Fokina	77	6

	First round							Second round							Quarterfinals							Semifinals
	7	J Menšík	77	67	6
	WC	H Bernet	61	79	3			7	J Menšík
		G Mpetshi Perricard	66	3					J Fonseca	w/o
		J Fonseca	78	6												J Fonseca	3	6	4
	SE	R Collignon	4	65											9	D Shapovalov	6	3	1r
	LL	V Royer	6	77				LL	V Royer	63	2
		M Giron	77	0	64			9	D Shapovalov	77	6
	9	D Shapovalov	63	6	77																		J Fonseca	77	7
	5	F Auger-Aliassime	6	7																			J Munar	64	5
		G Diallo	2	5				5	F Auger-Aliassime	77	77
	LL	D Goffin	69	5				Q	M Čilić	62	62
	Q	M Čilić	711	7											5	F Auger-Aliassime	3	0r
	Q	R Bertola	2	4												J Munar	6	0
		J Munar	6	6					J Munar	6	6
	Q	K Majchrzak	77	3	67			2	B Shelton	3	4
	2	B Shelton	62	6	79

	First round							Qualifying competition
	1	Adrian Mannarino	1	2
	WC	Rémy Bertola	6	6
								WC	Rémy Bertola	6	6
								8	Quentin Halys	4	4
		Alexander Shevchenko	3	77	62
	8	Quentin Halys	6	64	77

	First round							Qualifying competition
	2	Reilly Opelka	66	711	7
	WC	Mika Brunold	78	69	5
								2	Reilly Opelka	6	6
									Botic van de Zandschulp	4	4
		Botic van de Zandschulp	78	6
	5	Mattia Bellucci	66	4

	First round							Qualifying competition
	3	Francisco Comesaña	2	64
		David Goffin	6	77
									David Goffin	1	64
									Marin Čilić	6	77
		Marin Čilić	6	6
	7	Adam Walton	4	1

	First round							Qualifying competition
	4	Valentin Royer	77	6
	WC	Marc-Andrea Hüsler	65	1
								4	Valentin Royer	4	5
								6	Kamil Majchrzak	6	7
		Pedro Martínez	4	4
	6	Kamil Majchrzak	6	6

• Main draw
• Qualifying draw