Singles
2015 Knoxville Challenger
Champion	Daniel Evans
Runner-up	Frances Tiafoe
Score	5–7, 6–1, 6–3

Adrian Mannarino was the defending champion, but chose not to compete this year.

Daniel Evans won the title , defeating Frances Tiafoe in the final 5–7, 6–1, 6–3 .

Seeds

Draw

Finals

	Semifinals							Final
		Dennis Novikov	4	4
		Frances Tiafoe	6	6
									Frances Tiafoe	7	1	3
									Daniel Evans	5	6	6
		Jared Donaldson	3	4
		Daniel Evans	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	M Jaziri	1	2
	WC	S Kozlov	6	6				WC	S Kozlov	3	64
	Q	D Smethurst	5	5					D Novikov	6	77
		D Novikov	7	7												D Novikov	7	6
	WC	M McDonald	4	3											5	J Duckworth	5	4
	Q	S Bangoura	6	6				Q	S Bangoura	6	3	4
		F Nielsen	62	4				5	J Duckworth	4	6	6
	5	J Duckworth	77	6																			D Novikov	4	4
	4	R Harrison	2	4																			F Tiafoe	6	6
		B Kavčič	6	6					B Kavčič	4	6	1
	WC	Luis Valero	6	1	3				F Tiafoe	6	4	6
		F Tiafoe	3	6	6											F Tiafoe	6	3
		M Michalička	1	3												T Sandgren	2	0r
		T Sandgren	6	6					T Sandgren	6	3	6
		G Lapentti	6	3	4			8	B Rola	4	6	3
	8	B Rola	4	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	A Falla	65	65
		L Broady	77	77					L Broady	6	2	6
	WC	H Reese	1	0					M Zverev	3	6	3
		M Zverev	6	6												L Broady	4	4
		J Donaldson	6	4	6											J Donaldson	6	6
	Q	E Quigley	4	6	4				J Donaldson	7	78
	SE	T Paul	4	4				3	T Smyczek	5	66
	3	T Smyczek	6	6																			J Donaldson	3	4
	6	J-P Smith	6	6																			D Evans	6	6
		T Fritz	4	4				6	J-P Smith	64	4
	Q	A Bossel	66	611					B Fratangelo	77	6
		B Fratangelo	78	713												B Fratangelo	4	64
		D Nguyen	2	6	3											D Evans	6	77
		D Evans	6	2	6				D Evans	6	6
	SE	N Rubin	5	3				2	A Krajicek	3	2
	2	A Krajicek	7	6

References

• Main Draw
• Qualifying Draw