Singles
2023 Viña Challenger
Champion	Thiago Seyboth Wild
Runner-up	Hugo Gaston
Score	7–5, 6–1

This was the first edition of the tournament.^[1]

Thiago Seyboth Wild won the title after defeating Hugo Gaston 7–5, 6–1 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	SE	Thiago Seyboth Wild	6	6
		Tomás Barrios Vera	3	4
								SE	Thiago Seyboth Wild	7	6
								2	Hugo Gaston	5	1
		Andrea Vavassori	61	2
	2	Hugo Gaston	77	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	Q	J Pereira	2	6	6
	WC	Daniel Antonio Núñez	6	2	4			Q	J Pereira	6	2	4
		A Pellegrino	6	6					A Pellegrino	4	6	6
	LL	G Villanueva	0	2												A Pellegrino	6	4	3
		Lautaro Midón	5	2											SE	T Seyboth Wild	3	6	6
	SE	T Seyboth Wild	7	6				SE	T Seyboth Wild	6	4	6
	Q	O Luz	4	6	6			Q	O Luz	1	6	4
	5	F Agamenone	6	2	2																	SE	T Seyboth Wild	6	6
	4	F Meligeni Alves	1	5																			T Barrios Vera	3	4
		T Barrios Vera	6	7					T Barrios Vera	2	6	77
		M Navone	7	6					M Navone	6	4	65
		G Bueno	5	2												T Barrios Vera	7	6
	Q	M Alves	65	6	4										Q	Á López San Martín	5	4
		JB Torres	77	3	6				JB Torres	6	4	2
	Q	Á López San Martín	6	5	6			Q	Á López San Martín	4	6	6
	7	L Darderi	2	7	1

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	F Díaz Acosta	1	3r
		TA Tirante	6	4					TA Tirante	3	3
	Q	Wilson Leite	1	4					A Vavassori	6	6
		A Vavassori	6	6												A Vavassori	77	6
		H Casanova	6	6											3	C Ugo Carabelli	65	4
		RA Burruchaga	3	3					H Casanova	3	6	3
		GA Olivieri	6	4	3			3	C Ugo Carabelli	6	4	6
	3	C Ugo Carabelli	1	6	6																		A Vavassori	61	2
	8	R Bonadio	6	6																		2	H Gaston	77	6
	WC	Miguel Fernando Pereira	4	1				8	R Bonadio	6	5	6
		N Kicker	1	0r				Alt	P Martín Tiffon	4	7	4
	Alt	Pol Martín Tiffon	6	3											8	R Bonadio	2	7	3
		A Collarini	4	5											2	H Gaston	6	5	6
	Q	F Gaio	6	7				Q	F Gaio	4	0r
	WC	G Lama	1	4				2	H Gaston	6	0
	2	H Gaston	6	6

References

External links

• Main draw
• Qualifying draw