Kevin Anderson was the defending champion,^[1] but withdrew before the tournament began because of a right elbow injury.^[2]

Reilly Opelka won his first ATP Tour title, defeating Brayden Schnur in the final, 6–1, 6–7^(7–9), 7–6^(9–7). He saved six match points en route to the title, all in the second-set tiebreak of his semifinal match against John Isner.^[3]

The top four seeds received a bye into the second round.

	Semifinals							Final
	1	John Isner	710	614	64
		Reilly Opelka	68	716	77
									Reilly Opelka	6	67	79
								Q	Brayden Schnur	1	79	67
	Q	Brayden Schnur	79	4	6
	6	Sam Querrey	67	6	3

	First round							Second round							Quarterfinals							Semifinals
								1	J Isner	79	6
		L Lacko	4	2					B Tomic	67	4
		B Tomic	6	6											1	J Isner	6	6
	Q	A Menéndez Maceiras	4	64											7	J Thompson	4	1
	Q	C Eubanks	6	77				Q	C Eubanks	6	1	4
	WC	N Rubin	79	5	1			7	J Thompson	4	6	6
	7	J Thompson	67	7	6																	1	J Isner	710	614	64
																							R Opelka	68	716	77
								4	J Millman	64	6	4
		G García López	78	6					G García López	77	1	6
	LL	A Popyrin	66	3												G García López	3	4
		D Istomin	4	6	6											R Opelka	6	6
		M McDonald	6	2	3				D Istomin	710	66	0r
		R Opelka	2	77	6				R Opelka	68	78	1
	5	A Mannarino	6	65	4

	First round							Second round							Quarterfinals							Semifinals
	8	T Sandgren	64	77	4
		P Lorenzi	77	64	6				P Lorenzi	4	6	6
		P Polansky	3	4					R Harrison	6	4	4
		R Harrison	6	6												P Lorenzi	79	65	5
	Q	B Schnur	6	6											Q	B Schnur	67	77	7
	WC	JM Lin	1	3				Q	B Schnur	6	4	77
								3	S Johnson	4	6	64
																						Q	B Schnur	79	4	6
	6	S Querrey	77	6																		6	S Querrey	67	6	3
		L Harris	62	2				6	S Querrey	6	6
		I Karlović	77	64	65				R Albot	3	4
		R Albot	64	77	77										6	S Querrey	6	3	6
	Q	R Ramanathan	3	6	1											J Jung	3	6	3
		J Jung	6	3	6				J Jung	6	7
								2/WC	F Tiafoe	3	5

1. Alexei Popyrin

	First round							Qualifying competition
	1	Adrián Menéndez Maceiras	6	6
	Alt	Tim Pütz	3	2
								1	Adrián Menéndez Maceiras	6	79
								8	Andrea Arnaboldi	3	67
		Yosuke Watanuki	5	6	3
	8	Andrea Arnaboldi	7	4	6

	First round							Qualifying competition
	2	Alexei Popyrin	7	6
		James Ward	5	4
								2	Alexei Popyrin	4	68
								5	Brayden Schnur	6	710
	WC	Cannon Kingsley	63	3
	5	Brayden Schnur	77	6

	First round							Qualifying competition
	3	Ramkumar Ramanathan	4	6	6
	Alt	Roy Smith	6	2	4
								3	Ramkumar Ramanathan	6	3	7
									Tim Smyczek	3	6	5
		Tim Smyczek	66	6	7
	7	Roberto Quiroz	78	3	5

	First round							Qualifying competition
	4	Christopher Eubanks	6	6
	WC	Adam El Mihdawy	3	2
								4	Christopher Eubanks	5	6	7
									Ernesto Escobedo	7	3	5
		Ernesto Escobedo	4	6	77
	6	Yasutaka Uchiyama	6	3	65

• Main draw
• Qualifying draw