2023 Aberto da República – Singles

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

Singles
2023 Aberto da República
Champion	Alejandro Tabilo
Runner-up	Román Andrés Burruchaga
Score	6–3, 7–6(8–6)

Main article: 2023 Aberto da República

Alejandro Tabilo won the title after defeating Román Andrés Burruchaga 6–3, 7–6^(8–6) in the final.

Seeds

1. Cristian Garín (quarterfinals)
2. Tomás Barrios Vera (first round)
3. Hugo Dellien (withdrew)
4. Aleksandar Kovacevic (first round)
5. Thiago Agustín Tirante (quarterfinals)
6. Thiago Monteiro (withdrew)
7. Nicolas Moreno de Alboran (second round)
8. Guido Andreozzi (first round)
9. Oliver Crawford (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
		Santiago Rodríguez Taverna	4	3
		Román Andrés Burruchaga	6	6
									Román Andrés Burruchaga	3	66
								Q	Alejandro Tabilo	6	78
	Q	Alejandro Tabilo	6	3	6
		Juan Pablo Ficovich	4	6	2

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	C Garín	6	6
	Alt	O Luz	0	4				1	C Garín	7	6
	Q	G Bueno	62	67					JL Reis da Silva	5	4
		JL Reis da Silva	77	79											1	C Garín	4	5
		S Rodríguez Taverna	6	5	7											S Rodríguez Taverna	6	7
	WC	E Ribeiro	4	7	5				S Rodríguez Taverna	3	6	77
		M Pucinelli de Almeida	3	3				7	N Moreno de Alboran	6	4	65
	7	N Moreno de Alboran	6	6																			S Rodríguez Taverna	4	3
	4	A Kovacevic	3	6	62																		RA Burruchaga	6	6
	WC	J Fonseca	6	3	77			WC	J Fonseca	6	4	4
		H Casanova	6	5	1				RA Burruchaga	4	6	6
		RA Burruchaga	1	7	6											RA Burruchaga	77	6
	Alt	B Lock	64	65												T Boyer	63	1
		R Olivo	77	77					R Olivo	1	4
		T Boyer	6	6					T Boyer	6	6
	8	G Andreozzi	4	3

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	LL	M Alves	7	6
	Q	F Romboli	5	3				LL	M Alves	4	4
	Q	A Tabilo	6	77				Q	A Tabilo	6	6
	Q	I Buse	4	65											Q	A Tabilo	6	64	711
		V Vacherot	6	6												B Tomic	4	77	69
	LL	B Bicknell	1	1					V Vacherot	5	7	66
		B Tomic	6	6					B Tomic	7	5	78
	9	O Crawford	3	2																		Q	A Tabilo	6	3	6
	5	TA Tirante	6	6																			JP Ficovich	4	6	2
		F Bagnis	2	4				5	TA Tirante	6	6
	Q	Wilson Leite	64	5				WC	G Klier Júnior	4	4
	WC	Gilbert Klier Júnior	77	7											5	TA Tirante	6	3	61
		JP Ficovich	6	6												JP Ficovich	4	6	77
	Q	P Sakamoto	1	2					JP Ficovich	77	6
		G Heide	79	6					G Heide	62	3
	2	T Barrios Vera	67	4