Singles
2013 Comerica Bank Challenger
Final
Champion	Bradley Klahn
Runner-up	Dan Evans
Score	3–6, 7–6(7–5), 6–4
Events
Singles Doubles
← 2012 · Comerica Bank Challenger · 2014 →

Steve Johnson was the defending champion, but lost to Donald Young in the first round.
Bradley Klahn won the title over Dan Evans 3–6, 7–6^(7–5), 6–4

	Semifinals							Final
	SE	Dan Evans	77	6
	Q	Farrukh Dustov	62	3
								SE	Dan Evans	6	65	4
									Bradley Klahn	3	77	6
		Bradley Klahn	77	5	6
	2	Evgeny Donskoy	61	7	4

	First round							Second round							Quarterfinals							Semifinals
	1	G Pella	6	6
		M Jaziri	4	2				1	G Pella	6	6
		J Duckworth	6	4	1				B Baker	4	4
		B Baker	4	6	6										1	G Pella	5	1
	WC	M Krueger	1	2											SE	D Evans	7	6
	SE	D Evans	6	6				SE	D Evans	2	6	6
	SE	G Jones	0	0				8	J Wang	6	4	3
	8	J Wang	6	6																		SE	D Evans	77	6
	4	R Harrison	3	6	5																	Q	F Dustov	62	3
	Q	J McGee	6	3	7			Q	J McGee	2	1
	Q	F Dustov	6	7				Q	F Dustov	6	6
		O Rochus	4	5											Q	F Dustov	77	3	6
		M Authom	1	4											WC	T Sandgren	65	6	0
	WC	T Sandgren	6	6				WC	T Sandgren	4	6	6
		Y Sugita	7	6					Y Sugita	6	3	4
	6	B Reynolds	5	2

	First round							Second round							Quarterfinals							Semifinals
	5	W Odesnik	6	64	6
	LL	J Ward	3	77	4			5	W Odesnik	6	6
	Q	D Molchanov	6	6				Q	D Molchanov	3	2
		H Moriya	4	2											5	W Odesnik	5	6	2
		B Klahn	77	6												B Klahn	7	4	6
		T Ito	65	3					B Klahn	6	6
		D Young	2	6	77				D Young	4	4
	3	S Johnson	6	3	63																		B Klahn	77	5	6
	7	M Zverev	4	6	6																	2	E Donskoy	61	7	4
		M Kukushkin	6	4	4			7	M Zverev	77	6
		M Reid	4	6	2			WC	D Novikov	65	2
	WC	D Novikov	6	2	6										7	M Zverev	5	2
	WC	Andre Dome	64	4											2	E Donskoy	7	6
		R Bemelmans	77	6					R Bemelmans	6	64	4
	Q	J-P Smith	3	6	64			2	E Donskoy	3	77	6
	2	E Donskoy	6	2	77

• Main draw
• Qualifying draw