Men's singles
2023 San Luis Open Challenger
Final
Champion	Tomás Barrios Vera
Runner-up	Dominik Koepfer
Score	7–6(8–6), 7–5
Events
Singles men women Doubles men women
← 2022 · San Luis Open Challenger · 2024 →

Antoine Bellier was the defending champion^[1] but lost in the first round to Alexis Galarneau.

Tomás Barrios Vera won the title after defeating Dominik Koepfer 7–6^(8–6), 7–5 in the final.

	Semifinals							Final
		Jan Choinski	3	3
		Dominik Koepfer	6	6
									Dominik Koepfer	66	5
								3	Tomás Barrios Vera	78	7
	3	Tomás Barrios Vera	6	6
	Q	Patrick Kypson	4	3

	First round							Second round							Quarterfinals							Semifinals
	1	J Duckworth	64	6	3
		TA Tirante	77	4	6				TA Tirante	6	6
		A Dougaz	2	2					F Comesaña	2	3
		F Comesaña	6	6												TA Tirante	4	4
		JL Reis da Silva	6	3	6											J Choinski	6	6
		A Walton	1	6	4				JL Reis da Silva	5	5
		J Choinski	4	7	6				J Choinski	7	7
	5	F Mena	6	5	2																		J Choinski	3	3
	4	R Olivo	7	6																			D Koepfer	6	6
	Q	R Statham	5	3				4	R Olivo	4	1r
		J Jung	0	63					M Neuchrist	6	4
		M Neuchrist	6	77												M Neuchrist	6	1	4
		RA Burruchaga	1	3												D Koepfer	4	6	6
		D Koepfer	6	6					D Koepfer	6	6
	Q	D Yevseyev	7	77				Q	D Yevseyev	3	2
	8	N Hardt	5	61

	First round							Second round							Quarterfinals							Semifinals
	7	JP Ficovich	64	3
	Q	G Mpetshi Perricard	77	6				Q	G Mpetshi Perricard	77	6
		N Mejía	4	65					M Dellien	64	3
		M Dellien	6	77											Q	G Mpetshi Perricard	4	6	4
		Elmar Ejupovic	6	6											3	T Barrios Vera	6	4	6
	WC	L Pouille	3	3					E Ejupovic	6	0	64
	Q	N Chappell	65	1				3	T Barrios Vera	3	6	77
	3	T Barrios Vera	77	6																		3	T Barrios Vera	6	6
	6	R Noguchi	2	65																		Q	P Kypson	4	3
	WC	R Pacheco Méndez	6	77				WC	R Pacheco Méndez	3	3
		AD Vallejo	1	3				Q	P Kypson	6	6
	Q	P Kypson	6	6											Q	P Kypson	6	65	6
	Q	B Lock	6	3	5											T Atmane	2	77	2
		T Atmane	2	6	7				T Atmane	7	4	6
	LL	A Galarneau	6	6				LL	A Galarneau	5	6	4
	2	A Bellier	2	4

• Main draw
• Qualifying draw