Doubles
2018 Tiburon Challenger
Final
Champions	Hans Hach Verdugo Luke Saville
Runners-up	Gerard Granollers Pedro Martínez
Score	6–3, 6–2
Events
Singles Doubles
← 2017 · Tiburon Challenger · 2019 →

André Göransson and Florian Lakat were the defending champions but lost in the quarterfinals to Gerard Granollers and Pedro Martínez.

Hans Hach Verdugo and Luke Saville won the title after defeating Granollers and Martínez 6–3, 6–2 in the final.

	First round							Quarterfinals							Semifinals							Final
	1	M Arévalo R Maytín	6	6
		B Fratangelo R Galloway	3	0				1	M Arévalo R Maytín	6	63	[6]
		R Roelofse N Rubin	3	0				Q	H Hach Verdugo L Saville	2	77	[10]
	Q	H Hach Verdugo L Saville	6	6											Q	H Hach Verdugo L Saville	6	6
	4	M Granollers M Vervoort	4	6	[10]											A Lawson H Reese	4	4
		T Matsui F Nielsen	6	3	[4]			4	M Granollers M Vervoort	6	610	[8]
		A Lawson H Reese	6	6					A Lawson H Reese	4	712	[10]
		M Reid J Thompson	4	4																		Q	H Hach Verdugo L Saville	6	6
		G Granollers P Martínez	6	6																			G Granollers P Martínez	3	2
	WC	C Eubanks M Krueger	4	4					G Granollers P Martínez	6	6
	WC	A Göransson F Lakat	4	6	[10]			WC	A Göransson F Lakat	4	4
	3	P Polansky J Withrow	6	3	[4]											G Granollers P Martínez	77	7
		R Gonzales N Lammons	4	6	[4]											E King N Pasha	64	5
		E King N Pasha	6	2	[10]				E King N Pasha	6	6
	WC	H Johnson Y Johnson	6	3	[10]			WC	H Johnson Y Johnson	4	2
	2	Sa Ratiwatana C Rungkat	1	6	[8]

• Main Draw
• Qualifying Draw