2025 Estoril Open – Singles

Hubert Hurkacz was the defending champion^[1] but chose not to defend his title.

Singles
2025 Estoril Open
Champion	Alex Michelsen
Runner-up	Andrea Pellegrino
Score	6–4, 6–4

Main article: 2025 Estoril Open

Alex Michelsen won the title after defeating Andrea Pellegrino 6–4, 6–4 in the final.^[2]

Seeds

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

1. Félix Auger-Aliassime (second round)
2. Alex Michelsen (champion)
3. Nuno Borges (quarterfinals)
4. Marcos Giron (second round)
5. Miomir Kecmanović (semifinals)
6. Pedro Martínez (first round)
7. Nicolás Jarry (quarterfinals)
8. João Fonseca (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
	Q	Andrea Pellegrino	6	6
		Aleksandar Vukic	4	4
								Q	Andrea Pellegrino	4	4
								2	Alex Michelsen	6	6
	5	Miomir Kecmanović	4	2
	2	Alex Michelsen	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
								1/WC	F Auger-Aliassime	5	4
	Alt	D Lajović	5	77	3			Q	A Pellegrino	7	6
	Q	A Pellegrino	7	62	6										Q	A Pellegrino	77	5	6
		L Tien	7	5	4										7	N Jarry	60	7	1
	WC	G Elias	5	7	6			WC	G Elias	2	6	5
	WC	H Rocha	715	3	4			7	N Jarry	6	4	7
	7	N Jarry	613	6	6																	Q	A Pellegrino	6	6
																							A Vukic	4	4
								4	M Giron	3	1
		A Vukic	6	2	6				A Vukic	6	6
	Alt	N Moreno de Alboran	3	6	0											A Vukic	6	6
		J Faria	3	62											LL	B Zapata Miralles	1	1
	LL	B Zapata Miralles	6	77				LL	B Zapata Miralles	6	77
		J de Jong	6	7					J de Jong	4	61
	8	J Fonseca	2	5

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	M Kecmanović	6	7
		J-L Struff	1	5				5	M Kecmanović	6	3	7
	Alt	K Coppejans	2	4				LL	D Yevseyev	1	6	5
	LL	D Yevseyev	6	6											5	M Kecmanović	6	65	6
	Q	G Zeppieri	6	63	1										3	N Borges	0	77	4
		M Fucsovics	2	77	6				M Fucsovics	66	77	4
								3	N Borges	78	64	6
																						5	M Kecmanović	4	2
	6	P Martínez	4	3																		2	A Michelsen	6	6
	Q	A Vatutin	6	6				Q	A Vatutin	3	2
		L Nardi	6	6					L Nardi	6	6
		A Kovacevic	2	3												L Nardi	3	4
	Alt	Y Hanfmann	3	4											2	A Michelsen	6	6
	Q	G Fonio	6	6				Q	G Fonio	4	63
								2	A Michelsen	6	77