Men's singles
2009 US Open
Final
Champion	Juan Martín del Potro
Runner-up	Roger Federer
Score	3–6, 7–6(7–5), 4–6, 7–6(7–4), 6–2
Details
Draw	128
Seeds	32
Events
Singles men women boys girls Doubles men women mixed boys girls WC Singles men women quad WC Doubles men women quad Legends men women mixed
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Juan Martín del Potro defeated five-time defending champion Roger Federer in the final, 3–6, 7–6^(7–5), 4–6, 7–6^(7–4), 6–2 to win the men's singles tennis title at the 2009 US Open. It was his first (and only) major title. He became the first Argentine man to win the title since Guillermo Vilas in 1977. This was also the first US Open final since 1999 to go to five sets.

Federer was attempting to become the first man to win six consecutive US Open titles in the Open Era, and the first since Bill Tilden in 1925. He was also vying to become the first man to win the Surface Slam (winning majors on clay, grass and hard court in the same calendar year), having won the preceding French Open and Wimbledon. It was the only major not won by the Big Three (Novak Djokovic, Federer, and Rafael Nadal) between the 2005 Australian Open and the 2012 US Open, a span of 30 events.^[1] This was the only major where the Big Three all reached the semifinals, but none of them won the championship.

This was the first major since the 2006 Australian Open not to have Federer and Nadal as the top two seeds. Andy Murray was seeded second ahead of Nadal, having become the world No. 2 shortly before the tournament.^[2] Nadal reclaimed the world No. 2 ranking after Murray lost to Marin Čilić in the fourth round.^[3]

This tournament marked the final major appearance of two-time major champion and world No. 1 Marat Safin.

For the first time in US Open history, no Americans reached the quarterfinals.

Click on the seed number of a player to go to their draw section.

	Quarterfinals									Semifinals									Final
	1	Roger Federer	6	6	66	78
	12	Robin Söderling	0	3	78	66
										1	Roger Federer	77	7	7
										4	Novak Djokovic	63	5	5
	4	Novak Djokovic	77	1	7	6
	10	Fernando Verdasco	62	6	5	2
																			1	Roger Federer	6	65	6	64	2
																			6	Juan Martín del Potro	3	77	4	77	6
	11	Fernando González	64	62	0
	3	Rafael Nadal	77	77	6
										3	Rafael Nadal	2	2	2
										6	Juan Martín del Potro	6	6	6
	6	Juan Martín del Potro	4	6	6	6
	16	Marin Čilić	6	3	2	1

	First round									Second round									Third round									Fourth round
	1	R Federer	6	6	7
	WC	D Britton	1	3	5					1	R Federer	6	7	7
	Q	G Lapentti	3	6	6	0	69				S Greul	3	5	5
		S Greul	6	4	3	6	711												1	R Federer	4	6	7	6
	PR	JI Chela	6	6	6														31	L Hewitt	6	3	5	4
		Ó Hernández	4	4	2					PR	JI Chela	3	3	4
		T Alves	0	3	4					31	L Hewitt	6	6	6
	31	L Hewitt	6	6	6																							1	R Federer	7	6	6
	21	J Blake	6	6	7																							14	T Robredo	5	2	2
		R Ramírez Hidalgo	1	4	5					21	J Blake	6	3	78	6
		O Rochus	6	6	6						O Rochus	4	6	66	3
		I Kunitsyn	3	0	2														21	J Blake	62	4	4
	Q	P Polansky	4	4	7	6	1												14	T Robredo	77	6	6
		G García-López	6	6	5	3	6				G García-López	2	6	2	4
	Q	D Young	4	6	2	3				14	T Robredo	6	4	6	6
	14	T Robredo	6	3	6	6

	First round									Second round									Third round									Fourth round
	12	R Söderling	6	3	6	6
		A Montañés	1	6	1	4				12	R Söderling	2
		M Zverev	6	5	6	4	0				M Granollers	0r
		M Granollers	2	7	3	6	6												12	R Söderling	6	7	66	6
		K Kim	6	0	6	6													22	S Querrey	2	5	78	1
		D Sela	3	6	2	2					K Kim	5	78	4	4
	Q	M Yani	3	5	4					22	S Querrey	7	66	6	6
	22	S Querrey	6	7	6																							12	R Söderling	7	3	6	0
	26	P-H Mathieu	6	5	0	2																						8	N Davydenko	5	6	2	0r
		M Youzhny	2	7	6	6					M Youzhny	6	64	4	3
		P Starace	63	62	0					Q	M Chiudinelli	2	77	6	6
	Q	M Chiudinelli	77	77	6														Q	M Chiudinelli	4	5	5
		J Hernych	1	77	6	2	6												8	N Davydenko	6	7	7
		R Schüttler	6	65	4	6	3				J Hernych	4	1	2
	Q	D Kindlmann	3	4	5					8	N Davydenko	6	6	6
	8	N Davydenko	6	6	7

	First round									Second round									Third round									Fourth round
	4	N Djokovic	6	6	6
		I Ljubičić	3	1	3					4	N Djokovic	6	6	6
	Q	JP Brzezicki	65	3	4					Q	C Ball	3	4	4
	Q	C Ball	77	6	6														4	N Djokovic	62	6	77	6
		K Beck	6	6	1	4	3												Q	J Witten	77	3	62	4
		M González	2	1	6	6	6				M González	77	4	5	2
	Q	J Witten	6	6	6					Q	J Witten	63	6	7	6
	29	I Andreev	4	0	2																							4	N Djokovic	6	6	6
	23	P Kohlschreiber	6	6	6																							15	R Štěpánek	1	3	3
		A Seppi	0	4	4					23	P Kohlschreiber	6	6	0	6
	Q	S Devvarman	6	6	6					Q	S Devvarman	3	4	6	2
		F Gil	3	4	3														23	P Kohlschreiber	6	2	3	3
		A Golubev	4	6	5	3													15	R Štěpánek	4	6	6	6
		L Mayer	6	4	7	6					L Mayer	65	3	4
		S Bolelli	4	4	4					15	R Štěpánek	77	6	6
	15	R Štěpánek	6	6	6

	First round									Second round									Third round									Fourth round
	10	F Verdasco	7	6	7
		B Becker	5	4	5					10	F Verdasco	6	6	6
		F Serra	710	77	77						F Serra	3	0	3
		J Tipsarević	68	65	65														10	F Verdasco	3	7	710	1	6
		R Kendrick	6	6	6														20	T Haas	6	5	68	6	4
		M Vassallo Argüello	3	2	2						R Kendrick	4	4	63
	Q	A Falla	5	6	67	2				20	T Haas	6	6	77
	20	T Haas	7	4	79	6																						10	F Verdasco	4	6	6	6
	28	V Hănescu	1	614	65																								J Isner	6	4	4	4
		J Isner	6	716	77						J Isner	6	6	77
	Q	M İlhan	3	6	3	7	7			Q	M İlhan	3	4	61
		C Rochus	6	3	6	5	5													J Isner	77	6	3	5	77
		M Gicquel	6	5	6	6													5	A Roddick	63	3	6	7	65
		D Tursunov	2	7	3	3					M Gicquel	1	4	4
		B Phau	1	4	2					5	A Roddick	6	6	6
	5	A Roddick	6	6	6

	First round									Second round									Third round									Fourth round
	7	J-W Tsonga	6	6	6
	WC	C Buchanan	0	2	1					7	J-W Tsonga	7	6	6
		J Nieminen	7	78	6						J Nieminen	5	3	4
		F Fognini	5	66	4														7	J-W Tsonga	77	6	6
		F Cipolla	6	1	3	3														J Benneteau	64	2	4
		J Benneteau	4	6	6	6					J Benneteau	6	3	6	6
	LL	P Luczak	3	3	6	6	1			30	V Troicki	1	6	1	0
	30	V Troicki	6	6	1	2	6																					7	J-W Tsonga	6	3	63	4
	17	T Berdych	7	6	6																							11	F González	3	6	77	6
		W Odesnik	5	4	4					17	T Berdych	6	63	77	6
	Q	M Berrer	3	67	6	0				Q	H Zeballos	3	77	62	2
	Q	H Zeballos	6	79	3	6													17	T Berdych	5	4	4
	Q	J Ouanna	77	6	3	6													11	F González	7	6	6
		R Ram	64	4	6	3				Q	J Ouanna	4	77	3	4
		N Massú	3	3	3					11	F González	6	65	6	6
	11	F González	6	6	6

	First round									Second round									Third round									Fourth round
	13	G Monfils	6	6	6
		J Chardy	1	4	3					13	G Monfils	6	7	6
		E Korolev	3	4	6	6	4				A Beck	3	5	3
		A Beck	6	6	2	2	6												13	G Monfils	6	6	1
		M Daniel	2	4	3															J Acasuso	3	4	0r
		J Acasuso	6	6	6						J Acasuso	6	3	1	6	6
		A Martín	5	7	3	3				18	D Ferrer	3	6	6	3	2
	18	D Ferrer	7	5	6	6																						13	G Monfils	77	3	1	3
	32	N Almagro	6	6	2	710																						3	R Nadal	63	6	6	6
		S Darcis	2	4	6	68				32	N Almagro	67	6	6	4	6
		R Ginepri	5	6	6	6					R Ginepri	79	2	3	6	4
	PR	A Pavel	7	2	4	0													32	N Almagro	5	4	4
	WC	M Llodra	3	4	4														3	R Nadal	7	6	6
		N Kiefer	6	6	6						N Kiefer	0	6	3	4
		R Gasquet	2	2	3					3	R Nadal	6	3	6	6
	3	R Nadal	6	6	6

	First round									Second round									Third round									Fourth round
	6	JM del Potro	6	6	6
		J Mónaco	3	3	1					6	JM del Potro	78	6	6
		J Melzer	1	6	6	6					J Melzer	66	3	3
		M Safin	6	4	3	4													6	JM del Potro	6	3	6	6
		P Cuevas	6	77	6															D Köllerer	1	6	3	3
	WC	C Guccione	4	64	0						P Cuevas	6	2	1	4
		D Köllerer	6	6	2	6					D Köllerer	3	6	6	6
	LL	R Machado	2	4	6	2																						6	JM del Potro	6	6	6
	24	JC Ferrero	6	6	6																							24	JC Ferrero	3	3	3
		F Santoro	4	3	3					24	JC Ferrero	1	3	6	6	6
		P Petzschner	77	66	6	4	6				P Petzschner	6	6	4	2	4
		S Stakhovsky	63	78	4	6	3												24	JC Ferrero	1	6	77	1
	Q	T Bellucci	6	6	6														9	G Simon	6	4	65	0r
		Y-h Lu	4	2	3					Q	T Bellucci	3	2	4
		D Gimeno Traver	4	63	3					9	G Simon	6	6	6
	9	G Simon	6	77	6

	First round									Second round									Third round									Fourth round
	16	M Čilić	77	6	77
	WC	R Sweeting	62	4	64					16	M Čilić	4	2	6	6	6
		T Gabashvili	5	1	2					WC	J Levine	6	6	0	3	0
	WC	J Levine	7	6	6														16	M Čilić	6	6	6
		D Istomin	6	6	77															D Istomin	1	4	3
	WC	B Evans	4	4	63						D Istomin	2	6	4	7	77
		N Lapentti	4	3	78	77	6				N Lapentti	6	4	6	5	64
	19	S Wawrinka	6	6	66	64	3																					16	M Čilić	7	6	6
	27	I Karlović	4	68	65																							2	A Murray	5	2	2
		I Navarro	6	710	77						I Navarro	4	7	77	5	69
		F López	6	66	3	5				WC	T Dent	6	5	61	7	711
	WC	T Dent	4	78	6	7													WC	T Dent	3	2	2
		P Capdeville	6	6	77														2	A Murray	6	6	6
		V Crivoi	3	0	62						P Capdeville	2	6	0	2
		E Gulbis	5	3	5					2	A Murray	6	3	6	6
	2	A Murray	7	6	7

• Association of Tennis Professionals (ATP) – 2009 US Open Men's Singles draw
• Qualifying Draw
• 2009 US Open – Men's draws and results at the International Tennis Federation