Doubles
2018 Las Vegas Challenger
Champions	Marcelo Arévalo Roberto Maytín
Runners-up	Robert Galloway Nathan Pasha
Score	6–3, 6–3

Brydan Klein and Joe Salisbury were the defending champions but chose not to defend their title.

Marcelo Arévalo and Roberto Maytín won the title after defeating Robert Galloway and Nathan Pasha 6–3, 6–3 in the final.

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	M Arévalo R Maytín	6	6
	WC	S Kozlov Jac Vance	4	4				1	M Arévalo R Maytín	77	5	[10]
		D Köpfer T Matsui	6	6					D Köpfer T Matsui	62	7	[2]
	WC	CJ Lock B Saraiva	1	3											1	M Arévalo R Maytín	7	65	[10]
	3	H Reese J Withrow	5	5												J Jung M Krueger	5	77	[5]
		R Gonzales N Lammons	7	7					R Gonzales N Lammons	3	64
		H Hach Verdugo LD Martínez	4	4					J Jung M Krueger	6	77
		J Jung M Krueger	6	6																		1	M Arévalo R Maytín	6	6
		L Harris R Roelofse	w/o																			4	R Galloway N Pasha	3	3
	Q	JC Aragone T Kokkinakis							L Harris R Roelofse	2	65
		A Shamasdin A Siljeström	64	64				4	R Galloway N Pasha	6	77
	4	R Galloway N Pasha	77	77											4	R Galloway N Pasha	6	6
	WC	Alenik Clayton Eric Samuelsson	4	2												D King N Rubin	3	2
		D King N Rubin	6	6					D King N Rubin	4	78	[14]
		K Majchrzak N Serdarušić	63	1				2	M Reid J-P Smith	6	66	[12]
	2	M Reid J-P Smith	77	6

References

• Main Draw
• Qualifying Draw