2018 U.S. Men's Clay Court Championships – Singles

Steve Johnson was the defending champion and successfully defended his title, defeating Tennys Sandgren in the final, 7–6^(7–2), 2–6, 6–4.

Singles
2018 U.S. Men's Clay Court Championships
Champion	Steve Johnson
Runner-up	Tennys Sandgren
Final score	7–6^(7–2), 2–6, 6–4
Draw	28 (4Q / 3WC)
Seeds	8

Main article: 2018 U.S. Men's Clay Court Championships

Seeds

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

1. John Isner (Quarterfinals)
2. Sam Querrey (Second round)
3. Jack Sock (Quarterfinals)
4. Nick Kyrgios (Quarterfinals)
5. Fernando Verdasco (First round)
6. Steve Johnson (Champion)
7. Ryan Harrison (Second round)
8. Tennys Sandgren (Final)

Draw

Key

• Q = Qualifier
• WC = Wild Card
• LL = Lucky Loser
• Alt = Alternate
• SE = Special Exempt
• PR = Protected Ranking
• ITF = ITF entry
• JE = Junior Exempt
• w/o = Walkover
• r = Retired
• d = Defaulted

Finals

	Semifinals							Final
	6	Steve Johnson	7	6^4	6
		Taylor Fritz	5	7^7	2
								6	Steve Johnson	7^7	2	6
								8	Tennys Sandgren	6^2	6	4
		Ivo Karlović	6^2	6^4
	8	Tennys Sandgren	7^7	7^7

Top half

	First Round							Second Round							Quarterfinals							Semifinals
								1	J Isner	6	6
	WC	D Brown	4	3					H Laaksonen	4	2
		H Laaksonen	6	6											1	J Isner	6^4	6	6^5
		F Tiafoe	6	6											6	S Johnson	7^7	4	7^7
	WC	M McDonald	3	3					F Tiafoe	3	4
		E Escobedo	6	6^5	2			6	S Johnson	6	6
	6	S Johnson	3	7^7	6																	6	S Johnson	7	6^4	6
																							T Fritz	5	7^7	2
								3	J Sock	6	6
		H Zeballos	6	6					H Zeballos	4	4
	Q	Y Nishioka	1	2											3	J Sock	3	6	4
		T Smyczek	7^7	2	6^6											T Fritz	6	3	6
		T Fritz	6^3	6	7^8				T Fritz	3	6	6
	Q	M Kecmanović	4	3				7	R Harrison	6	0	3
	7	R Harrison	6	6

Bottom half

	First Round							Second Round							Quarterfinals							Semifinals
	5	F Verdasco	4	6^4
	Q	D Kudla	6	7^7				Q	D Kudla	5	5
		T Daniel	6^5	4					I Karlović	7	7
		I Karlović	7^7	6												I Karlović	3	6	6
		B Fratangelo	6	6											4/WC	N Kyrgios	6	2	3
		J Thompson	1	1					B Fratangelo	7^7	1	2
								4/WC	N Kyrgios	6^2	6	6
																							I Karlović	6^2	6^4
	8	T Sandgren	6	6																		8	T Sandgren	7^7	7^7
		B Kavčič	2	2				8	T Sandgren	6	7^7
		N Kicker	6	6					N Kicker	2	6^3
		D Young	3	2											8	T Sandgren	4	7	6
	Q	S Kozlov	3	2												G Pella	6	5	3
		G Pella	6	6					G Pella	2	7^7	7^7
								2	S Querrey	6	6^4	6^3

Qualifying

Seeds

1. Cameron Norrie (First round)
2. Denis Kudla (Qualified)
3. Thomaz Bellucci (First round)
4. Michael Mmoh (First round)
5. Bradley Klahn (Qualifying competition)
6. Dennis Novikov (Qualifying competition)
7. Akira Santillan (Qualifying competition)
8. Darian King (First round)

Qualifiers

1. Yoshihito Nishioka
2. Denis Kudla
3. Stefan Kozlov
4. Miomir Kecmanović

Qualifying draw

First qualifier

	First Round							Qualifying Competition
	1	Cameron Norrie	1	4
	WC	Yoshihito Nishioka	6	6
								WC	Yoshihito Nishioka	6	6
								5	Bradley Klahn	2	0
	WC	Christopher Eubanks	6^7	6	6^4
	5	Bradley Klahn	7^9	4	7^7

Second qualifier

	First Round							Qualifying Competition
	2	Denis Kudla	6	6
		Reilly Opelka	4	3
								2	Denis Kudla	6	7
									Mitchell Krueger	3	5
		Mitchell Krueger	7	6
	8	Darian King	5	3

Third qualifier

	First Round							Qualifying Competition
	3	Thomaz Bellucci	7^7	3	6^5
		Stefan Kozlov	6^3	6	7^7
									Stefan Kozlov	6	6
								7	Akira Santillan	2	0
	Alt	Dominik Köpfer	4	3
	7	Akira Santillan	6	6

Fourth qualifier

	First Round							Qualifying Competition
	4	Michael Mmoh	1	6^4
		Miomir Kecmanović	6	7^7
									Miomir Kecmanović	6	5	6
								6	Dennis Novikov	4	7	3
		Evan King	5	7^7	4
	6	Dennis Novikov	7	6^2	6

References

• Main draw
• Qualifying draw