2025 San Marino Open – Singles

Alexandre Müller was the defending champion but chose not to defend his title.

Singles
2025 San Marino Open
Champion	Lukáš Klein
Runner-up	Dino Prižmić
Score	6–3, 6–4

Main article: 2025 San Marino Open

Lukáš Klein won the title after defeating Dino Prižmić 6–3, 6–4 in the final.

Seeds

1. Valentin Royer (second round)
2. Thiago Agustín Tirante (semifinals)
3. Matteo Gigante (semifinals)
4. Kyrian Jacquet (second round)
5. Dino Prižmić (final)
6. Federico Agustín Gómez (second round, retired)
7. Lukas Neumayer (quarterfinals)
8. Ugo Blanchet (first round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

Finals

	Semifinals							Final
		Lukáš Klein	77	6
	3	Matteo Gigante	65	4
									Lukáš Klein	6	6
								5	Dino Prižmić	3	4
	5	Dino Prižmić	6	4	6
	2	Thiago Agustín Tirante	1	6	3

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	V Royer	3	6	6
		F Mena	6	2	2			1	V Royer	64	6	4
		M Dellien	2	6	3				L Klein	77	3	6
		L Klein	6	0	6											L Klein	63	6	6
	WC	Pierluigi Basile	3	3											7	L Neumayer	77	4	4
		AD Vallejo	6	6					AD Vallejo	2	6	4
		A Collarini	64	2				7	L Neumayer	6	3	6
	7	L Neumayer	77	6																			L Klein	77	6
	3	M Gigante	610	6	6																	3	M Gigante	65	4
	Q	K Ivanovski	712	3	3			3	M Gigante	1	6	6
	Q	R Berankis	7	5	66			Alt	M Poljičak	6	4	1
	Alt	M Poljičak	5	7	78										3	M Gigante	3	6	6
		L Pavlovic	6	6												L Pavlovic	6	4	3
	Q	M Karol	1	4					L Pavlovic	3	77	1
		V Sachko	2	6	66			6	FA Gómez	6	63	1r
	6	FA Gómez	6	4	78

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	D Prižmić	7	6
		Á Guillén Meza	5	1				5	D Prižmić	6	6
	Q	G Villanueva	3	6	4			Q	O Prihodko	2	4
	Q	O Prihodko	6	3	6										5	D Prižmić	6	6
		D Rincón	5	4												J Engel	2	2
		J Engel	7	6					J Engel	2	6	6
		F Arnaboldi	1	5				4	K Jacquet	6	4	2
	4	K Jacquet	6	7																		5	D Prižmić	6	4	6
	8	U Blanchet	65	5																		2	TA Tirante	1	6	3
	WC	CA Caniato	77	7				WC	CA Caniato	6	2	4
	NG	A Géa	1	64					H Mayot	4	6	6
		H Mayot	6	77												H Mayot	3	3
	WC	F Cinà	6	6											2	TA Tirante	6	6
	Q	M Kestelboim	2	1				WC	F Cinà	3	3
	Alt	N Fatić	2	62				2	TA Tirante	6	6
	2	TA Tirante	6	77

External links

• Main draw
• Qualifying draw