Men's singles
2004 NASDAQ-100 Open
Final
Champion	Andy Roddick
Runner-up	Guillermo Coria
Score	6–7(2–7), 6–3, 6–1 (Coria retired)
Details
Draw	96 (12Q / 5WC)
Seeds	32
Events
Singles men women Doubles men women
← 2003 · NASDAQ-100 Open · 2005 →

Andy Roddick won the men's singles tennis title at the 2004 Miami Open after Guillermo Coria retired in the final, with the scoreline at 6–7^(2–7), 6–3, 6–1.

Andre Agassi was the three-time defending champion, but lost in the fourth round to Agustín Calleri. Agassi's win over Max Mirnyi in the third round was his record 20th consecutive win at the Miami Open.

The third round match between Rafael Nadal and Roger Federer marks the first time they faced each other, eventually meeting on 39 more occasions.

All thirty-two seeds received a bye to the second round.

	Quarterfinals							Semifinals							Final
	21	Fernando González	65	6	6
		Andrei Pavel	77	3	4
								21	Fernando González	6	66	1
								3	Guillermo Coria	4	78	6
	3	Guillermo Coria	6	6
		Nicolas Kiefer	3	3
															3	Guillermo Coria	77	3	1	0r
															2	Andy Roddick	62	6	6	0
		Vince Spadea	7	6
	20	Agustín Calleri	5	1
									Vince Spadea	1	3
								2	Andy Roddick	6	6
	5	Carlos Moyá	7	2	5
	2	Andy Roddick	5	6	7

	First round							Second round							Third round							Fourth round
								1	R Federer	6	3	7
		N Davydenko	6	2	6				N Davydenko	2	6	5
		T Johansson	2	6	3										1	R Federer	3	3
		N Escudé	4	7	67										32	R Nadal	6	6
	WC	G Ivanišević	6	5	79			WC	G Ivanišević	4	0r
								32	R Nadal	6	0
																						32	R Nadal	61	6	2
																						21	F González	77	4	6
								21	F González	7	79
	WC	A Bogomolov Jr.	6	63	4				K Kučera	5	67
		K Kučera	0	77	6										21	F González	6	6
		A Martín	6	63	0										14	J Novák	4	2
	Q	S Koubek	2	77	6			Q	S Koubek	4	0
								14	J Novák	6	6

	First round							Second round							Third round							Fourth round
								10	N Massú	63	1
	Q	D Tursunov	2	64					A Pavel	77	6
		A Pavel	6	77												A Pavel	6	7
		R Söderling	77	6											17	L Hewitt	4	5
		D Ferrer	65	4					R Söderling	4	2
								17	L Hewitt	6	6
																							A Pavel	77	77
																							T Martin	65	61
								29	J Nieminen	3	7	5
	Q	I Heuberger	6	4	2				T Martin	6	5	7
		T Martin	3	6	6											T Martin	77	6
		J Melzer	6	6												J Melzer	64	3
		I Karlović	4	4					J Melzer	77	2	77
								7	T Henman	63	6	64

	First round							Second round							Third round							Fourth round
								3	G Coria	77	6
		R Sluiter	3	1					W Ferreira	62	0
		W Ferreira	6	6											3	G Coria	6	3	6
	WC	B Baker	4	3											25	J I Chela	2	6	3
		C Saulnier	6	6					C Saulnier	6	4	5
								25	J I Chela	2	6	7
																						3	G Coria	77	2	7
																						Q	J Benneteau	63	6	5
								24	A Clément	6	3	2
		D Sanguinetti	1	3					I Ljubičić	3	6	6
		I Ljubičić	6	6												I Ljubičić	63	1
	Q	J Morrison	3	6	5										Q	J Benneteau	77	6
	Q	J Benneteau	6	2	7			Q	J Benneteau	6	6
								16	M Fish	4	4

	First round							Second round							Third round							Fourth round
								12	S Grosjean	6	6
		T Enqvist	5	6	4				N Lapentti	3	4
		N Lapentti	7	2	6										12	S Grosjean	6	4	77
		H Arazi	5	4												T Ascione	3	6	61
		T Ascione	7	6					T Ascione	77	6
								23	F López	64	4
																						12	S Grosjean	4	2
																							N Kiefer	6	6
								30	G Gaudio	65	2
		R Ramírez Hidalgo	2	2					R Ginepri	77	6
		R Ginepri	6	6												R Ginepri	63	6	4
		N Kiefer	6	6												N Kiefer	77	3	6
		I Andreev	3	4					N Kiefer	6	4	77
								6	R Schüttler	4	6	63

	First round							Second round							Third round							Fourth round
								LL	F Verdasco	66	63
		S Sargsian	3	4					R Štěpánek	78	77
		R Štěpánek	6	6												R Štěpánek	3	6	63
		J Blake	714	64	1											V Spadea	6	2	77
		V Spadea	612	77	6				V Spadea	79	64	6
								31	M Safin	67	77	4
																							V Spadea	5	6	6
																						9	P Srichaphan	7	3	2
								18	G Kuerten	1	6	5
	Q	J Mónaco	78	6				Q	J Mónaco	6	3	7
		J Johansson	66	2											Q	J Mónaco	6	4	4
	Q	R Mello	77	78											9	P Srichaphan	1	6	6
	Q	J Salzenstein	63	66				Q	R Mello	1	6	3
								9	P Srichaphan	6	1	6

	First round							Second round							Third round							Fourth round
								15	M Verkerk	6	4	5
		F Saretta	4	4				WC	T Reid	4	6	7
	WC	T Reid	6	6											WC	T Reid	4	63
		J-M Gambill	5	4											20	A Calleri	6	77
		L Burgsmüller	7	6					L Burgsmüller	3	5
								20	A Calleri	6	7
																						20	A Calleri	6	77
																						4	A Agassi	2	62
								28	M Mirnyi	6	77
	Q	F Squillari	2	6	6			Q	F Squillari	4	63
		H-T Lee	6	2	3										28	M Mirnyi	2	2
		G Carraz	4	5											4	A Agassi	6	6
		M Zabaleta	6	7					M Zabaleta	0	61
								4	A Agassi	6	77

	First round							Second round							Third round							Fourth round
								5	C Moyá	4	6	6
		D Sánchez	6	6					D Sánchez	6	4	4
		L Horna	4	4											5	C Moyá	7	1	6
	Q	G Müller	4	5											27	D Hrbatý	5	6	3
		B Ulihrach	6	7					B Ulihrach	3	6	3
								27	D Hrbatý	6	3	6
																						5	C Moyá	6	6
																						19	T Robredo	3	3
								19	T Robredo	4	6	77
	Q	K Carlsen	5	1					O Rochus	6	1	63
		O Rochus	7	6											19	T Robredo	3	6	77
		F Santoro	5	5											Q	J Hernych	6	3	64
	Q	J Hernych	7	7				Q	J Hernych	6	6
								11	M Philippoussis	4	2

	First round							Second round							Third round							Fourth round
								13	S Schalken	1	0d
		G Cañas	6	78					G Cañas	6	3
	WC	T Haas	1	66												G Cañas	6	2	6
		I Labadze	2	0												X Malisse	4	6	3
		X Malisse	6	6					X Malisse	6	6
								22	A Costa	4	2
																							G Cañas	3	3
																						2	A Roddick	6	6
								26	J Björkman	77	6
		T Dent	6	6					T Dent	64	2
		M Youzhny	3	3											26	J Björkman	4	6	3
		V Hănescu	1	3											2	A Roddick	6	3	6
		K Beck	6	6					K Beck	2	4
								2	A Roddick	6	6

• Main draw