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Ariel Behar and Fabiano de Paula were the defending champions but chose to defend their title with different partners. Behar partnered Attila Balázs but lost in the semifinals to Marcelo Arévalo and Miguel Ángel Reyes-Varela. De Paula partnered Sergio Galdós but lost in the first round to Hugo Dellien and Federico Zeballos.

Arévalo and Reyes-Varela won the title after defeating Dellien and Zeballos 6–1, 6–7, in the final.

Seeds

1. Fabiano de Paula / Sergio Galdós (first round)
2. Marcelo Arévalo / Miguel Ángel Reyes-Varela (champions)
3. Guido Andreozzi / Máximo González (quarterfinals)
4. Attila Balázs / Ariel Behar (semifinals)

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	F de Paula S Galdós	4	4
	Alt	H Dellien F Zeballos	6	6				Alt	H Dellien F Zeballos	6	6
		M Cuevas V Estrella Burgos	6	6					M Cuevas V Estrella Burgos	7	3
		F Agamenone T Lipovšek Puches	3	3											Alt	H Dellien F Zeballos	6	6
	3	G Andreozzi M González	6	6												B Rola F Romboli	1	4
	WC	Á Guillén Meza Juán Sebastián Zabala Vargas	2	0				3	G Andreozzi M González	6	3
		B Rola F Romboli	6	6					B Rola F Romboli	7	6
	WC	Alexandre Abid Ricardo Albán	0	0																		Alt	H Dellien F Zeballos	1	7
		J Domingues J Souza	4	7																		2	M Arévalo MÁ Reyes-Varela	6	6
	PR	A González R Quiroz	6	6					J Domingues J Souza	3	6
	WC	C Berlocq Mariano Kestelboim	2	1				4	A Balázs A Behar	6	7
	4	A Balázs A Behar	6	6											4	A Balázs A Behar	3	2
		R Arneodo M Cecchinato	6	6											2	M Arévalo MÁ Reyes-Varela	6	6
		G Oliveira G Panfil	1	0					R Arneodo M Cecchinato	2	6
		P Cachin R Carballés Baena	2	6				2	M Arévalo MÁ Reyes-Varela	6	7
	2	M Arévalo MÁ Reyes-Varela	6	7

References

• Main draw

• 2017 ATP Challenger Tour
• Challenger Ciudad de Guayaquil