2018 Challenger Ciudad de Guayaquil – Doubles

Marcelo Arévalo and Miguel Ángel Reyes-Varela were the defending champions but chose not to defend their title.

Doubles
2018 Challenger Ciudad de Guayaquil
Champions	Guillermo Durán Roberto Quiroz
Runners-up	Thiago Monteiro Fabrício Neis
Final score	6–3, 6–2

Main article: 2018 Challenger Ciudad de Guayaquil

Guillermo Durán and Roberto Quiroz won the title after defeating Thiago Monteiro and Fabrício Neis 6–3, 6–2 in the final.

Seeds

1. Ariel Behar / Andrés Molteni (Quarterfinals)
2. Martín Cuevas / Pablo Cuevas (Semifinals)
3. Gonzalo Escobar / Fernando Romboli (First round)
4. Guillermo Durán / Roberto Quiroz (Champions)

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

	First Round							Quarterfinals							Semifinals							Final
	1	A Behar A Molteni	6	6
		A De Greef L Giustino	3	3				1	A Behar A Molteni	2	6	[5]
	WC	José Daniel Bendeck C Rodríguez	6^2	3					J Domingues G Elias	6	4	[10]
		J Domingues G Elias	7^7	6												J Domingues G Elias
	4	G Durán R Quiroz	w/o												4	G Durán R Quiroz	w/o
		P Krstin M Zekić						4	G Durán R Quiroz	6	7
	WC	E Gómez D Hidalgo	3	6	[9]				F Agamenone F Argüello	1	5
		F Agamenone F Argüello	6	4	[11]																	4	G Durán R Quiroz	6	6
		T Monteiro F Neis	6	6																			T Monteiro F Neis	3	2
		P Sousa M Vervoort	2	1					T Monteiro F Neis	w/o
		C Berlocq Camilo Ugo Carabelli	3	6	[10]				C Berlocq C Ugo Carabelli
	3	G Escobar F Romboli	6	3	[8]											T Monteiro F Neis	6	6
	WC	I Endara AC March	4	4											2	M Cuevas P Cuevas	3	4
		T Lipovsek Puches F Zeballos	6	6					T Lipovsek Puches F Zeballos	4	7	[5]
		F Bagnis S Galdós	4	3				2	M Cuevas P Cuevas	6	5	[10]
	2	M Cuevas P Cuevas	6	6

References

• Main Draw