2011 U.S. Men's Clay Court Championships – Singles

Juan Ignacio Chela was the defending champion, but could not defend his title since he withdrew from the tournament for personal reasons.^[1]
In the final match, Ryan Sweeting claimed the title, defeating Kei Nishikori 6–4, 7–6^(7–3).

Singles
2011 U.S. Men's Clay Court Championships
Champion	Ryan Sweeting
Runner-up	Kei Nishikori
Score	6–4, 7–6(7–3)

Main article: 2011 U.S. Men's Clay Court Championships

Seeds

The top four seeds received a bye into the second round.^[1]

1. Mardy Fish (quarterfinals)
2. Sam Querrey (second round)
3. Guillermo García López (quarterfinals)
4. John Isner (quarterfinals)
5. Benjamin Becker (first round)
6. Kei Nishikori (final)
7. Pablo Cuevas (semifinals)
8. Grigor Dimitrov (second round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

Finals

	Semifinals							Final
	6	Kei Nishikori	6	7
	7	Pablo Cuevas	3	5
								6	Kei Nishikori	4	63
								WC	Ryan Sweeting	6	77
	Q	Ivo Karlović	63	3
	WC	Ryan Sweeting	77	6

Top half

	First round							Second round							Quarterfinals							Semifinals
								1	M Fish	6	6
		A Ramos	6	7					A Ramos	3	4
		B Dabul	4	5											1	M Fish	3	2
		I Andreev	6	6											6	K Nishikori	6	6
		M Russell	2	3					I Andreev	3	3
	Q	F Škugor	3	2				6	K Nishikori	6	6
	6	K Nishikori	6	6																		6	K Nishikori	6	7
																						7	P Cuevas	3	5
								3	G García López	6	6
		R Kendrick	2	1					S Devvarman	4	1
		S Devvarman	6	6											3	G García López	6	64	3
	WC	J Blake	63	6	6										7	P Cuevas	1	77	6
		C Berlocq	77	3	4			WC	J Blake	5	1
		R Mello	2	0				7	P Cuevas	7	6
	7	P Cuevas	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	B Becker	65	4
	Q	I Karlović	77	6				Q	I Karlović	6	6
		M Zverev	61	2					I Kunitsyn	4	1
		I Kunitsyn	77	6											Q	I Karlović	77	62	711
	WC	R Harrison	4	3											4	J Isner	62	77	69
		H Zeballos	6	6					H Zeballos	5	3
								4	J Isner	7	6
																						Q	I Karlović	63	3
	8	G Dimitrov	6	6																		WC	R Sweeting	77	6
		R Schüttler	0	2				8	G Dimitrov	64	3
		T Gabashvili	6	77					T Gabashvili	77	6
	Q	P Capdeville	4	64												T Gabashvili	6	3	1
	Q	T Smyczek	2	2											WC	R Sweeting	3	6	6
	WC	R Sweeting	6	6				WC	R Sweeting	3	77	6
								2	S Querrey	6	65	3