Doubles
2018 Los Cabos Open
Champions	Marcelo Arévalo Miguel Ángel Reyes-Varela
Runners-up	Taylor Fritz Thanasi Kokkinakis
Score	6–4, 6–4

Juan Sebastián Cabal and Treat Huey were the defending champions, but Huey chose not to participate and Cabal chose to compete in Washington instead.

Marcelo Arévalo and Miguel Ángel Reyes-Varela won the title, defeating Taylor Fritz and Thanasi Kokkinakis in the final, 6–4, 6–4.

Seeds

Draw

Draw

	First round							Quarterfinals							Semifinals							Final
	1	S González D Marrero	7	3	[4]
		A Begemann I Karlović	5	6	[10]				A Begemann I Karlović	6	713
		F Neis F Romboli	6	6					F Neis F Romboli	3	611
	WC	M Sánchez B Tomic	4	3												A Begemann I Karlović	5	6	[7]
	3	M Arévalo MÁ Reyes-Varela	7	77											3	M Arévalo MÁ Reyes-Varela	7	2	[10]
		L Bambridge J O'Mara	5	62				3	M Arévalo MÁ Reyes-Varela	77	6
		H Hach Verdugo A Siljeström	1	7	[10]				H Hach Verdugo A Siljeström	65	2
	WC	L Gómez L Patiño	6	5	[7]																	3	M Arévalo MÁ Reyes-Varela	6	6
		A Krajicek J Nedunchezhiyan	7	6																			T Fritz T Kokkinakis	4	4
		P Raja J Withrow	5	3					A Krajicek J Nedunchezhiyan	5	4
		E King N Pasha	2	2				4	R Arneodo N Monroe	7	6
	4	R Arneodo N Monroe	6	6											4	R Arneodo N Monroe	2	4
		T Fritz T Kokkinakis	4	6	[10]											T Fritz T Kokkinakis	6	6
		S Galdós P Polansky	6	2	[6]				T Fritz T Kokkinakis	77	6
		B Mousley E Ymer	1	2				2	J Erlich J Salisbury	65	4
	2	J Erlich J Salisbury	6	6

References

• Main Draw