Boys' singles
2009 US Open
Champion	Bernard Tomic
Runner-up	Chase Buchanan
Score	6–1, 6–3

Grigor Dimitrov was the defending champion, but did not compete in the Juniors this year.

Bernard Tomic won in the final 6–1, 6–3 against Chase Buchanan.

Seeds

Draw

Finals

	Quarterfinals							Semifinals							Final
	1	Yuki Bhambri	3	64
	WC	Chase Buchanan	6	7
								WC	Chase Buchanan	6	6
								8	Gianni Mina	3	3
	16	Denis Kudla	6	6	3
	8	Gianni Mina	2	7	6
															WC	Chase Buchanan	1	3
															3	Bernard Tomic	6	6
		Tiago Fernandes	1	4
	3	Bernard Tomic	6	6
								3	Bernard Tomic	6	7
									Pierre-Hugues Herbert	1	65
		Pierre-Hugues Herbert	6	4	6
	WC	Raymond Sarmiento	2	6	2

Top half

Section 1

	First round							Second round							Third round							Quarterfinals
	1	Yuki Bhambri	6	6
		Jordan Cox	2	1				1	Y Bhambri	6	6
		Patrik Brydolf	2	4					S Ehrat	0	1
		Sandro Ehrat	6	6											1	Y Bhambri	6	6
	WC	Johannes Robert Van Overbeek	4	3											WC	J Sock	4	3
		Stanislav Poplavskyy	6	6					S Poplavskyy	1	4
	WC	Jack Sock	4	6	6			WC	J Sock	6	6
	14	David Souto	6	1	4																	1	Y Bhambri	3	64
	11	Kevin Krawietz	6	1	5																	WC	C Buchanan	6	7
	WC	Chase Buchanan	3	6	7			WC	C Buchanan	6	6
		Hiroyasu Ehara	7	6					H Ehara	4	4
		Adrien Puget	5	1											WC	C Buchanan	6	6
		Guilherme Clezar	3	4												M Fucsovics	2	3
		Márton Fucsovics	6	6					M Fucsovics	6	6
		Evan King	7	6					E King	2	3
	5	Agustín Velotti	64	4

Section 2

	First round							Second round							Third round							Quarterfinals
	4	Huang Liang-chi	64	64
	SE	Matthew Kandath	7	7				SE	M Kandath	3	6	4
		Nikala Scholtz	67	6	4				A De Greef	6	4	6
		Arthur De Greef	7	4	6											A De Greef	6	3	4
	Q	Mikhail Biryukov	1	6	6										16	D Kudla	4	6	6
		Richard Becker	6	3	3			Q	M Biryukov	5	3
		Radim Urbánek	3	5				16	D Kudla	7	6
	16	Denis Kudla	6	7																		16	D Kudla	6	6	3
	10	Facundo Argüello	3	6	2																	8	G Mina	2	7	6
	Q	Christian Lindell	6	3	6			Q	C Lindell	4	6	6
	WC	Shane Vinsant	1	1				Q	S-y Jeong	6	3	2
	Q	Jeong Suk-young	6	6											Q	C Lindell	66	4
		Jozef Kovalík	6	7											8	G Mina	7	6
		Harry Fowler	4	65					J Kovalík	7	2	4
	Q	Yasutaka Uchiyama	4	4				8	G Mina	5	6	6
	8	Gianni Mina	6	6

Bottom half

Section 3

	First round							Second round							Third round							Quarterfinals
	7	Andrea Collarini	6	6
	WC	Gonzales Austin	1	3				7	A Collarini	6	6
		Mitchell Frank	6	5	1				F Gaio	4	3
		Federico Gaio	2	7	6										7	A Collarini	4	5
	WC	Dennis Novikov	2	1												T Fernandes	6	7
		Tiago Fernandes	6	6					T Fernandes	2	6	6
		Duilio Beretta	66	3				12	J Obry	6	4	3
	12	Julien Obry	7	6																			T Fernandes	1	4
	15	Dominik Schulz	6	6																		3	B Tomic	6	6
		Francis Casey Alcantara	3	4				15	D Schulz	4	6	3
	Q	Tobias Blomgren	6	6				Q	T Blomgren	6	3	6
	WC	Bjorn Fratangelo	4	4											Q	T Blomgren	6	1	2
		Alexander Domijan	6	3	7										3	B Tomic	4	6	6
	Q	Sudanwa Sitaram	3	6	5				A Domijan	6	5	1
		Henri Laaksonen	4	3				3	B Tomic	4	7	6
	3	Bernard Tomic	6	6

Section 4

	First round							Second round							Third round							Quarterfinals
	6	Lim Yong-kyu	6	6
	Q	Maximilian Neuchrist	2	4				6	Y-k Lim	6	3	65
		José Pereira	2	6	6				J Pereira	2	6	7
		Junior Ore	6	4	1											J Pereira	7	61	4
		Alexandros Georgoudas	6	3	6											P-H Herbert	5	7	6
	Q	Sekou Bangoura	4	6	0				A Georgoudas	2	4
		Pierre-Hugues Herbert	3	6	6				P-H Herbert	6	6
	9	Shuichi Sekiguchi	6	3	2																		P-H Herbert	6	4	6
	13	Julen Urigüen	3	3																		WC	R Sarmiento	2	6	2
		Filip Horanský	6	6					F Horanský	62	1
	WC	Raymond Sarmiento	7	6				WC	R Sarmiento	7	6
		Hsieh Cheng-peng	5	3											WC	R Sarmiento	7	2	6
		Renzo Olivo	5	1												S Lavie	6	6	1
		Sebastian Lavie	7	6					S Lavie	7	7
		Tennys Sandgren	4	6	7				T Sandgren	64	65
	2	Daniel Berta	6	3	65

External links

• Main Draw Archived 2009-09-08 at the Wayback Machine