Men's singles
2004 Estoril Open
Champion	Juan Ignacio Chela
Runner-up	Marat Safin
Score	6–7(2–7), 6–3, 6–3
Draw	32
Seeds	8

Nikolay Davydenko was the defending champion but lost in the first round to Radek Štěpánek.

Juan Ignacio Chela won in the final 6–7^(2–7), 6–3, 6–3 against Marat Safin.

Seeds

Draw

Finals

	Semifinals							Final
	Q	Florian Mayer	3	3
	5	Juan Ignacio Chela	6	6
								5	Juan Ignacio Chela	62	6	6
								8	Marat Safin	77	3	3
	8	Marat Safin	2
		Irakli Labadze	3r

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	R Schüttler	64	77	3
		V Hănescu	77	64	6				V Hănescu	6	6
		O Rochus	6	7					O Rochus	3	0
		G Carraz	4	5												V Hănescu	4	3
		R Štěpánek	77	6											Q	F Mayer	6	6
		N Davydenko	63	3					R Štěpánek	4	2
	Q	F Mayer	6	6				Q	F Mayer	6	6
	7	G Gaudio	3	4																		Q	F Mayer	3	3
	3	A Calleri	63	6	63																	5	J I Chela	6	6
	Q	J Vaněk	77	3	77			Q	J Vaněk	3	2
		J Boutter	6	2	4				O Patience	6	6
		O Patience	3	6	6											O Patience	3	2
	WC	D Rocha	7	2	6										5	J I Chela	6	6
	WC	L Tavares	5	6	3			WC	D Rocha	0	0r
	WC	G Cañas	3	4				5	J I Chela	6	2
	5	J I Chela	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	M Safin	5	6	6
		C Saulnier	7	2	2			8	M Safin	6	6
		A Dupuis	65	0					T Ascione	4	4
		T Ascione	77	6											8	M Safin	77	2	77
	Q	V Mazarakis	6	1	2										4	T Robredo	62	6	65
		M Zabaleta	3	6	6				M Zabaleta	1	66
		X Malisse	0	0r				4	T Robredo	6	78
	4	T Robredo	6	0																		8	M Safin	2
	6	M Mirnyi	77	6																			I Labadze	3r
		B Ulihrach	62	3				6	M Mirnyi	3	3
	Q	A Sávolt	6	4	5				I Labadze	6	6
		I Labadze	4	6	7											I Labadze	w/o
		G Ivanišević	4	1												R Nadal
		R Nadal	6	6					R Nadal	6	3	6
		R Gasquet	0	77	77				R Gasquet	4	6	2
	2	N Massú	6	62	65

References

• 2004 Estoril Open draw