Singles
2016 San Luis Open Challenger Tour
Champions	Peđa Krstin
Runners-up	Marcelo Arévalo
Score	6–4, 6–2

Guido Pella was the defending champion, but chose not to defend his title.

Peđa Krstin won the title, defeating Marcelo Arévalo 6–4, 6–2 in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Federico Gaio	1	4
	Q	Marcelo Arévalo	6	6
								Q	Marcelo Arévalo	4	2
									Peđa Krstin	6	6
		Peđa Krstin	6	6
	2	Albert Montañés	2	4

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	M Berrer	3	77	5
		F Gaio	6	65	7				F Gaio	6	6
		N Milojević	6	6					N Milojević	3	1
		O Roca Batalla	4	3												F Gaio	6	6
	WC	M Sánchez	3	2											7	H Podlipnik	4	1
		J Samper Montaña	6	6					J Samper Montaña	3	4
		J Jung	4	0				7	H Podlipnik	6	6
	7	H Podlipnik	6	6																			F Gaio	1	4
	3	A Ghem	7	77																		Q	M Arévalo	6	6
		D Novak	5	62				3	A Ghem	6	6
	WC	L Gómez	6	6				WC	L Gómez	3	2
		D Popko	2	0											3	A Ghem	3	65
	Q	M Arévalo	6	6											Q	M Arévalo	6	77
	WC	Mauricio Astorga	2	3				Q	M Arévalo	61	6	6
		D Nguyen	4	4				5	M Donati	77	4	3
	5	M Donati	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	M Bourgue	5	6	6
	Alt	N Barrientos	7	2	0			6	M Bourgue	3	4
		P Krstin	6	6					P Krstin	6	6
	WC	T Hank	3	4												P Krstin	77	6
	Q	Robin Staněk	6	6											Q	C Zampieri	64	3
		R Ramírez Hidalgo	3	4				Q	R Staněk	3	1
	Q	C Zampieri	6	1	7			Q	C Zampieri	6	6
	4	A Menéndez Maceiras	1	6	5																		P Krstin	6	6
	8	J McGee	4	2																		2	A Montañés	2	4
		M Safwat	6	6					M Safwat	79	6
		G Lapentti	4	3					L Giustino	67	4
		L Giustino	6	6												M Safwat	6	2	65
	Q	A Velotti	5	6	0										2	A Montañés	4	6	77
		L Djere	7	3	6				L Djere	5	65
		P Cachin	7	3	65			2	A Montañés	7	77
	2	A Montañés	5	6	77

References

• Main draw
• Qualifying draw