Singles
2016 Challenger ATP Cachantún Cup
Champion	Facundo Bagnis
Runner-up	Rogério Dutra Silva
Score	6–7(3–7), 6–4, 6–3

Facundo Bagnis was the defending champion.

Facundo Bagnis defended his title by repeating as champion, defeating Rogério Dutra Silva 6–7^(3–7), 6–4, 6–3 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	1	Facundo Bagnis	6	6
		Gonzalo Lama	1	2
								1	Facundo Bagnis	63	6	6
								3	Rogério Dutra Silva	77	4	3
	3	Rogério Dutra Silva	6	65	6
	WC	Thiago Monteiro	3	77	3

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	F Bagnis	6	6
	WC	MT Barrios Vera	2	4				1	F Bagnis	6	6
		T Lipovšek Puches	2	6	6				T Lipovšek Puches	1	2
		G Naso	6	3	3										1	F Bagnis	6	6
	Q	Maximiliano Estévez	6	77											Q	M Estevez	4	0
		JC Sáez	2	65				Q	M Estevez	6	3	6
	WC	Gonzalo Achondo	1	1				LL	G Rivera Aránguiz	1	6	3
	LL	G Rivera Aránguiz	6	6																		1	F Bagnis	6	6
	4	M González	6	6																			G Lama	1	2
		J Samper Montaña	4	2				4	M González	3	6	4
	WC	C Garín	3	6	4				R Ramírez Hidalgo	6	3	6
		R Ramírez Hidalgo	6	2	6											R Ramírez Hidalgo	79	3	64
		A Giannessi	77	7												G Lama	67	6	77
		C Lindell	65	5					A Giannessi	7	2	60
		G Lama	6	6					G Lama	5	6	77
	7	N Kicker	4	1

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	G Clezar	3	6	6
	Q	Adrien Puget	6	1	3			8	G Clezar	6	77
		O Roca Batalla	64	4					M Bourgue	4	65
		M Bourgue	77	6											8	G Clezar	3	5
		M Chazal	4	1											3	R Dutra Silva	6	7
		J Hernández	6	6					J Hernández	65	3
		M Linzer	0	1				3	R Dutra Silva	77	6
	3	R Dutra Silva	6	6																		3	R Dutra Silva	6	65	6
	6	F Argüello	6	6																		WC	T Monteiro	3	77	3
	Q	P Sakamoto	1	0				6	F Argüello	6	3	65
	WC	T Monteiro	6	77				WC	T Monteiro	4	6	77
		H Podlipnik	2	61											WC	T Monteiro	77	6
		JI Londero	77	6												JI Londero	62	2
		J Pereira	65	3					JI Londero	6	1	6
	Q	F Coria	2	3				2	R Carballés Baena	2	6	3
	2	R Carballés Baena	6	6

References

• Main draw
• Qualifying draw