Doubles
2015 Challenger ATP Cachantún Cup
Champions	Andrés Molteni Guido Pella
Runners-up	Andrea Collarini Máximo González
Score	7–6(9–7), 3–6, [10–4]

Christian Garin and Nicolás Jarry were the defending champions, but did not play together. Garin partnered with Julio Peralta and lost in the first round. Jarry partnered with Marcelo Demoliner and lost in the second round.

Seeds

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

	First round							Quarterfinals							Semifinals							Final
	1	A Molteni G Pella	6	7
		C Garin J Peralta	4	5				1	A Molteni G Pella	77	6
	WC	Patricio Heras J Hernández	6	77				WC	P Heras J Hernández	61	1
		A González F Romboli	3	64											1	A Molteni G Pella	6	6
	4	A Behar H Zeballos	4	77	[9]											F Neis H Podlipnik-Castillo	3	2
		F Neis H Podlipnik-Castillo	6	62	[11]				F Neis H Podlipnik-Castillo	3	7	[10]
		G Durán R Olivo	6	7					G Durán R Olivo	6	5	[2]
		R Dutra Silva JI Londero	4	5																		1	A Molteni G Pella	79	3	[10]
	WC	J Aguilar JC Sáez	6	6																			A Collarini M González	67	6	[4]
		G Clezar F de Paula	0	3				WC	J Aguilar JC Sáez	77	3	[11]
		G Lapentti R Ramírez Hidalgo	5	6	[11]				G Lapentti R Ramírez Hidalgo	64	6	[9]
	3	F Bagnis S Galdós	7	4	[9]										WC	J Aguilar JC Sáez	2	2
		A Collarini M González	6	3	[10]											A Collarini M González	6	6
	WC	G Rivera-Aránguiz Ricardo Urzúa-Rivera	4	6	[2]				A Collarini M González	6	6
		F Argüello P Cachin	64	62				2	M Demoliner N Jarry	2	4
	2	M Demoliner N Jarry	77	77

References

• Main Draw