2026 Argentina Open – Singles

Singles
2026 Argentina Open
Champion	Francisco Cerúndolo
Runner-up	Luciano Darderi
Score	6–4, 6–2
Draw	28 (4 Q / 3 WC )
Seeds	8

Francisco Cerúndolo defeated Luciano Darderi in the final, 6–4, 6–2 to win the singles tennis title at the 2026 Argentina Open.^[1] It was his first Argentina Open title, having finished runner-up in 2021 and 2025, and fourth ATP Tour title overall.^[2]

João Fonseca was the defending champion,^[3] but lost in the second round to Alejandro Tabilo.^[4]

This was the first time since 2009 that three Argentine players reached the semifinals.^[5][a]

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

Key

	Semifinals							Final
	1	Francisco Cerúndolo	6	7
	7	Tomás Martín Etcheverry	3	5
								1	Francisco Cerúndolo	6	6
								2	Luciano Darderi	4	2
	4	Sebastián Báez	62	1
	2	Luciano Darderi	77	6

	First round							Second round							Quarterfinals							Semifinals
								1	F Cerúndolo	6	78
		D Džumhur	4	1				Q	H Dellien	0	66
	Q	H Dellien	6	6											1	F Cerúndolo	6	6
	WC	A Barrena	4	6	4											V Kopřiva	4	3
		V Kopřiva	6	3	6				V Kopřiva	6	6
	WC	F Coria	5	5				8	M Berrettini	4	3
	8	M Berrettini	7	7																		1	F Cerúndolo	6	7
																						7	TM Etcheverry	3	5
								3	J Fonseca	3	6	5
	WC	F Díaz Acosta	65	3					A Tabilo	6	3	7
		A Tabilo	77	6												A Tabilo	6	3	4
		RA Burruchaga	6	6											7	TM Etcheverry	1	6	6
		L Djere	2	4					RA Burruchaga	65	77	4
	Q	A Pellegrino	3	4				7	TM Etcheverry	77	63	6
	7	TM Etcheverry	6	6

	First round							Second round							Quarterfinals							Semifinals
	6	C Ugo Carabelli	6	77
		F Comesaña	4	63				6	C Ugo Carabelli	6	7
		M Navone	6	6					M Navone	2	5
		E Nava	2	1											6	C Ugo Carabelli	65	2
		I Buse	5	7	6										4	S Báez	77	6
	Q	F Passaro	7	5	4				I Buse	4	3
								4	S Báez	6	6
																						4	S Báez	62	1
	5	D Altmaier	2	2																		2	L Darderi	77	6
		JM Cerúndolo	6	6					JM Cerúndolo	65	4
	Q	L Midón	4	1					P Martínez	77	6
		P Martínez	6	6												P Martínez	5	1
		T Barrios Vera	4	6											2	L Darderi	7	6
	LL	T Seyboth Wild	6	5r					T Barrios Vera	1	3
								2	L Darderi	6	6

	First round							Qualifying competition
	1	Andrea Pellegrino	6	6
	WC	Juan Manuel La Serna	1	3
								1	Andrea Pellegrino	711	6
								5	Thiago Seyboth Wild	69	1
		Andrea Collarini	68	77	4
	5	Thiago Seyboth Wild	710	64	6

	First round							Qualifying competition
	2	Hugo Dellien	6	6
		Genaro Alberto Olivieri	1	4
								2	Hugo Dellien	6	6
								6	Thiago Monteiro	1	3
	Alt	Franco Agamenone	4	0
	6	Thiago Monteiro	6	6

	First round							Qualifying competition
	3	Francesco Passaro	6	6
	Alt	Nicolás Kicker	3	3
								3	Francesco Passaro	5	6	6
								7	Marco Cecchinato	7	4	2
		Santiago Rodríguez Taverna	3	3
	7	Marco Cecchinato	6	6

	First round							Qualifying competition
	4	Daniel Elahi Galán	6	77
	WC	Juan Bautista Torres	2	64
								4	Daniel Elahi Galán	4	6	3
									Lautaro Midón	6	4	6
		Lautaro Midón	6	6
	8	Felipe Meligeni Alves	2	2

• Main draw
• Qualifying draw