2010 US Open
Champion		Jack Sock
Runner-up		Denis Kudla
Final score		3–6, 6–2, 6–2
Events
Singles		men		women				boys		girls
Doubles		men		women		mixed		boys		girls
Other events
Legends		men		women		mixed
WC Singles		men		women		quad
WC Doubles		men		women		quad

The Boys' Singles tournament of the 2010 US Open started on Sunday September 5th, the seventh day of the main tournament.

Bernard Tomic was the defending champion, but was no longer eligible to compete as a Junior this year.

Jack Sock, who received wildcard into the singles main draw, won this tournament, after defeating Denis Kudla in the final.

	Quarterfinals							Semifinals							Final
		Filip Horanský	5	1
	10	Denis Kudla	7	6
								10	Denis Kudla	6	6
								8	Agustín Velotti	3	2
	4	Jiří Veselý	4	2
	8	Agustín Velotti	6	6
															10	Denis Kudla	6	2	2
															WC	Jack Sock	3	6	6
	WC	Jack Sock	6	7
	13	Victor Baluda	3	64
								WC	Jack Sock	6	6
								2	Márton Fucsovics	3	4
		Dennis Novikov	2	6	3
	2	Márton Fucsovics	6	4	6

First Round							Second Round							Third Round							Quarterfinals
1	JS Gómez	64	6	3
WC	A Collarini	7	4	6			WC	A Collarini	7	6
	G Clezar	6	3	6				G Clezar	61	3
	R Rodríguez	3	6	0										WC	A Collarini	3	4
	F Horanský	7	6												F Horanský	6	6
WC	JA Ore	65	1					F Horanský	6	6
	G Morgan	6	4	7				G Morgan	3	3
15	R Quiroz	4	6	5																		F Horanský	5	1
10	D Kudla	4	6	6																	10	D Kudla	7	6
	C Wang	6	1	3			10	D Kudla	4	'6	6
Q	D Kondo	2	2					K Krawietz	6	4	2
	K Krawietz	6	6											10	D Kudla	65	7	6
	M Delić	6	6											WC	E King	7	5	4
WC	M Redlicki	3	4					M Delić	0	0
WC	E King	7	6				WC	E King	6	6
6	J Kubler	5	1

First Round							Second Round							Third Round							Quarterfinals
4	J Veselý	7	6
	L-c Huang	5	3				4	J Veselý	6	6
Q	M McDonald	3	2					A Rumyantsev	3	2
	A Rumyantsev	6	6											4	J Veselý	6	62	6
	R Sarmiento	66	6	4											T Daniel	1	7	0
Q	K Sell	7	4	6			Q	K Sell	5	4
	T Daniel	6	6					T Daniel	7	6
14	D Thiem	4	0																		4	J Veselý	4	2
12	M Zsiga	5	4																		8	A Velotti	6	6
	J de Loore	7	6					J de Loore	3	2
	H Dellien	2	6	3			WC	D Kosakowski	6	6
WC	D Kosakowski	6	4	6										WC	D Kosakowski	64	5
LL	G Micolani	4	7	6										8	A Velotti	7	7
	D Webb	6	66	4			LL	G Micolani	65	4
	M Wunner	6	62	2			8	A Velotti	7	6
8	A Velotti	3	7	6

First Round							Second Round							Third Round							Quarterfinals
5	D Džumhur	6	6
	M Bourgue	4	4				5	D Džumhur	6	6
Q	S Barry	6	6				Q	S Barry	4	2
	N Chappell	1	3											5	D Džumhur	63	3
	B Ouyang	1	64											WC	J Sock	7	6
WC	J Sock	6	7				WC	J Sock	6	6
	P Heller	6	7					P Heller	1	3
11	R Olivo	3	5																		WC	J Sock	6	7
13	V Baluda	3	6	6																	13	V Baluda	3	64
	B Wagland	6	1	3			13	V Baluda	61	6	6
	J Kovalík	6	6					J Kovalík	7	2	3
	B Fratangelo	3	4											13	V Baluda	6	4	6
	B McLachlan	1	64											3	T Fernandes	4	6	3
	M Pavić	6	7					M Pavić	3	65
WC	M Krueger	0	1				3	T Fernandes	6	7
3	T Fernandes	6	6

First Round							Second Round							Third Round							Quarterfinals
7	D Beretta	6	7
	J Patrombon	2	5				7	D Beretta	6	63	1r
Q	J Cagnina	4	3					D Novikov	2	7	4
	D Novikov	6	6												D Novikov	7	6
	Y Uchiyama	7	4	6											Y Uchiyama	5	3
Q	M Zhu	66	6	0				Y Uchiyama	6	6
	J Lupescu	5	6	7				J Lupescu	2	3
9	J Duckworth	7	4	63																		D Novikov	2	6	3
16	M Frank	6	6																		2	M Fucsovics	6	4	6
	D King	4	1				16	M Frank	6	6
	O Golding	7	6					O Golding	4	2
	A Artunedo	69	3											16	M Frank	4	1
Q	B Semenzato	4	1											2	M Fucsovics	6	6
Q	A Halebian	6	6				Q	A Halebian	6	1	3
	L Vrňák	6	5	4			2	M Fucsovics	3	6	6
2	M Fucsovics	4	7	6

1. Sam Barry
2. Julien Cagnina
3. Alexios Halebian
4. Daiki Kondo
5. Mackenzie McDonald
6. Karue Sell
7. Bruno Semenzato
8. Michael Zhu

The following player received the lucky loser spot:

1. Giammarco Micolani

• Official site of US Open