Singles
2017 Fairfield Challenger
Champion	Mackenzie McDonald
Runner-up	Bradley Klahn
Score	6–4, 6–2

Santiago Giraldo was the defending champion but chose not to defend his title.

Mackenzie McDonald won the title after defeating Bradley Klahn 6–4, 6–2 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	SE	Bradley Klahn	6	6
	4	Maximilian Marterer	1	3
								SE	Bradley Klahn	4	2
									Mackenzie McDonald	6	6
	Q	Christopher O'Connell	4	5
		Mackenzie McDonald	6	7

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	E Escobedo	5	6	6
	WC	A Sarkissian	7	0	2			1	E Escobedo	4	79	3
	SE	B Klahn	1	6	6			SE	B Klahn	6	67	6
	SE	K King	6	1	1										SE	B Klahn	4	6	6
		F Auger-Aliassime	4	6	6										8	N Milojević	6	3	4
	Q	J Šátral	6	3	4				F Auger-Aliassime	2	4
		B Schnur	1	5				8	N Milojević	6	6
	8	N Milojević	6	7																		SE	B Klahn	6	6
	4	M Marterer	6	77																		4	M Marterer	1	3
		B Klein	4	62				4	M Marterer	6	6
	Q	R Roelofse	4	4				LL	S Bangoura	3	2
	LL	S Bangoura	6	6											4	M Marterer	6	7
	WC	A Geller	2	4											Q	S Fanselow	4	5
	Q	Sebastian Fanselow	6	6				Q	S Fanselow	77	77
	WC	E King	1	6	65			9	M Mmoh	62	65
	9	M Mmoh	6	4	77

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	R Ramanathan	4	6	4
		T Kamke	6	4	6				T Kamke	6	3	4
		D Kudla	5	3				Q	C O'Connell	0	6	6
	Q	C O'Connell	7	6											Q	C O'Connell	77	5	6
	LL	A González	6	6											3	B Fratangelo	65	7	4
		J-P Smith	1	4				LL	A González	65	65
	LL	A Ward	6	65	4			3	B Fratangelo	77	77
	3	B Fratangelo	3	77	6																	Q	C O'Connell	4	5
	6	S Kozlov	4	7	1																		M McDonald	6	7
		M McDonald	6	5	6				M McDonald	6	6
	PR	F Dancevic	4	4					D King	3	1
		D King	6	6												M McDonald	77	6
		S Groth	4	6	5										2	T Sandgren	63	2
		N Rubin	6	3	7				N Rubin	61	3
		M Krueger	3	77	65			2	T Sandgren	77	6
	2	T Sandgren	6	62	77

References

• Main Draw
• Qualifying Draw