2023 Santa Cruz Challenger – Singles

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

Singles
2023 Santa Cruz Challenger
Champion	Mariano Navone
Runner-up	Francisco Comesaña
Score	4–6, 7–5, 6–1

Main article: 2023 Santa Cruz Challenger

Mariano Navone won the title after defeating Francisco Comesaña 4–6, 7–5, 6–1 in the final.

Seeds

1. Juan Manuel Cerúndolo (semifinals, retired)
2. Genaro Alberto Olivieri (quarterfinals)
3. Hugo Dellien (first round)
4. Thiago Agustín Tirante (quarterfinals, retired)
5. Francisco Comesaña (final)
6. Mariano Navone (champion)
7. Luciano Darderi (first round)
8. Camilo Ugo Carabelli (second 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
	1	Juan Manuel Cerúndolo	4	0r
	6	Mariano Navone	6	3
								6	Mariano Navone	4	7	6
								5	Francisco Comesaña	6	5	1
		Andrea Collarini	7	4	4
	5	Francisco Comesaña	5	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	JM Cerúndolo	6	6
		A Barrena	2	3				1	JM Cerúndolo	77	4	78
	Q	O Luz	7	6				Q	O Luz	62	6	66
		B Kuzuhara	5	2											1	JM Cerúndolo	7	6
		T Boyer	4	4											PR	P Sakamoto	5	4
	PR	P Sakamoto	6	6				PR	P Sakamoto	4	77	6
		JL Reis da Silva	6	6					JL Reis da Silva	6	64	2
	7	L Darderi	4	3																		1	JM Cerúndolo	4	0r
	4	TA Tirante	2	6	2																	6	M Navone	6	3
		D Dutra da Silva	6	3	0r			4	TA Tirante	77	77
		M Pucinelli de Almeida	6	6					M Pucinelli de Almeida	61	63
	Q	M Zormann	4	4											4	TA Tirante	1	1r
	WC	JC Prado Ángelo	6	6											6	M Navone	6	4
		AD Vallejo	3	1				WC	JC Prado Ángelo	3	3
	WC	M Soto	7	64	1			6	M Navone	6	6
	6	M Navone	5	77	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	C Ugo Carabelli	6	6
		M Dellien	2	4				8	C Ugo Carabelli	4	5
	Q	F Mena	6	6				Q	F Mena	6	7
	Q	P Boscardin Dias	4	4											Q	F Mena	3	66
	WC	JI Londero	77	6												A Collarini	6	78
		R Olivo	64	2				WC	JI Londero
		A Collarini	77	6					A Collarini	w/o
	3	H Dellien	64	4																			A Collarini	7	4	4
	5	F Comesaña	6	6																		5	F Comesaña	5	6	6
		E Ribeiro	2	4				5	F Comesaña	6	7
		D Jordà Sanchis	0	6	5				G Heide	3	5
		G Heide	6	3	7										5	F Comesaña	6	6
	Q	G Villanueva	77	6											2	GA Olivieri	4	1
	Q	J Pereira	64	2				Q	G Villanueva	4	6	1
		RA Burruchaga	6	63	2			2	GA Olivieri	6	3	6
	2	GA Olivieri	1	77	6