Doubles
2018 Fairfield Challenger
Champions	Sanchai Ratiwatana Christopher Rungkat
Runners-up	Harri Heliövaara Henri Laaksonen
Score	6–0, 7–6(11–9)

Luke Bambridge and David O'Hare were the defending champions but chose not to defend their title.

Sanchai Ratiwatana and Christopher Rungkat won the title after defeating Harri Heliövaara and Henri Laaksonen 6–0, 7–6^(11–9) 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	Sa Ratiwatana C Rungkat	6	6
		T Kokkinakis M Reid	3	4				1	Sa Ratiwatana C Rungkat	6	5	[10]
	Q	A Göransson A Siljeström	6	2	[6]			WC	H Johnson Y Johnson	4	7	[6]
	WC	H Johnson Y Johnson	4	6	[10]										1	Sa Ratiwatana C Rungkat	6	6
	3	E King N Pasha	3	5												M-A Hüsler S Verbeek	4	4
	WC	JC Aragone M Krueger	6	7				WC	JC Aragone M Krueger	2	4
		M-A Hüsler S Verbeek	6	6					M-A Hüsler S Verbeek	6	6
		H Hach Verdugo A Menéndez Maceiras	4	4																		1	Sa Ratiwatana C Rungkat	6	711
	PR	L Harris D O'Brien	5	4																			H Heliövaara H Laaksonen	0	69
		R Galloway R Maytín	7	6					R Galloway R Maytín	w/o
		A Lawson H Reese	6	77					A Lawson H Reese
	4	T Matsui F Nielsen	3	63												R Galloway R Maytín	5	4
		H Heliövaara H Laaksonen	77	77												H Heliövaara H Laaksonen	7	6
		R Gonzales N Lammons	62	62					H Heliövaara H Laaksonen	3	6	[10]
	WC	D Nguyen M Seeberger	77	3	[5]			2	R Roelofse J-P Smith	6	2	[7]
	2	R Roelofse J-P Smith	64	6	[10]

References

• Main Draw
• Qualifying Draw