Singles
2018 Fairfield Challenger
Champion	Bjorn Fratangelo
Runner-up	Alex Bolt
Score	6–4, 6–3

Mackenzie McDonald was the defending champion but chose not to defend his title.

Bjorn Fratangelo won the title after defeating Alex Bolt 6–4, 6–3 in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Bjorn Fratangelo	6	6
	6	Casper Ruud	2	2
									Bjorn Fratangelo	6	6
								8	Alex Bolt	4	3
	5	Adrián Menéndez Maceiras	5	6r
	8	Alex Bolt	7	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	J Thompson	77	6
		J Clarke	63	1				1	J Thompson	65	6	6
	WC	A Rybakov	68	3				SE	M Janvier	77	3	0
	SE	M Janvier	710	6											1	J Thompson	1	4
		B Fratangelo	3	6	6											B Fratangelo	6	6
		J-P Smith	6	2	4				B Fratangelo	7	6
		D Köpfer	6	6					D Köpfer	5	3
	7	I Karlović	4	4																			B Fratangelo	6	6
	4	R Opelka	62	65																		6	C Ruud	2	2
		L Miedler	77	77					L Miedler	4	1
	Q	Sebastian Fanselow	6	5	6			Q	S Fanselow	6	6
		C İlkel	2	7	0										Q	S Fanselow	1	0
		M Polmans	4	79	3										6	C Ruud	6	6
		JC Aragone	6	67	6				JC Aragone	1	64
	Q	K King	3	4				6	C Ruud	6	77
	6	C Ruud	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	A Menéndez Maceiras	77	3	6
	LL	M Krueger	65	6	1			5	A Menéndez Maceiras	6	6
		H Laaksonen	6	4	1				T de Bakker	4	3
		T de Bakker	4	6	6										5	A Menéndez Maceiras	6	6
	Q	E King	6	1	4										WC	J. J. Wolf	0	4
	WC	J. J. Wolf	2	6	6			WC	J. J. Wolf	6	6
	WC	A Geller	3	4				3	N Rubin	3	2
	3	N Rubin	6	6																		5	A Menéndez Maceiras	5	6r
	8	A Bolt	7	3	6																	8	A Bolt	7	6
		T Kokkinakis	5	6	4			8	A Bolt	78	63	77
	WC	C Altamirano	77	0				WC	C Altamirano	66	77	65
		D Evans	62	0r											8	A Bolt	6	6
	Q	T Paul	6	6											2	L Harris	3	4
	Alt	D King	2	2				Q	T Paul	6	5	5
		D Young	612	6	5			2	L Harris	4	7	7
	2	L Harris	714	4	7

References

• Main Draw
• Qualifying Draw