Men's singles
2004 Idea Prokom Open
Champion	Rafael Nadal
Runner-up	José Acasuso
Score	6–3, 6–4

Rafael Nadal defeated José Acasuso in the final, 6–3, 6–4 to win the Singles title at the 2004 Idea Prokom Open. It was his first career title.^[1]

Guillermo Coria was the reigning champion, but did not participate.

Seeds

Draw

Finals

	Semifinals							Final
		Juan Mónaco	4	2
		José Acasuso	6	6
									José Acasuso	3	4
								6	Rafael Nadal	6	6
	6	Rafael Nadal	7	6
	Q	Félix Mantilla	5	1

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	M Safin	7	6
		G Blanco	5	2				1	M Safin	3	2
		M López	7	6					M López	6	6
		Ó Hernández	5	2												M López	3	6	66
	WC	F Urban	4	66												J Mónaco	6	2	78
		M Rosset	6	78					M Rosset	4	3
		J Mónaco	613	7	6				J Mónaco	6	6
	5	A Martín	715	5	3																		J Mónaco	4	2
	3	D Ferrer	6	6																			J Acasuso	6	6
	Q	G García-López	4	3				3	D Ferrer	4	64
	WC	M Przysiężny	5	4					J Acasuso	6	77
		J Acasuso	7	6												J Acasuso	3	6	6
		B Ulihrach	6	2	65										Q	J Vaněk	6	3	2
	Q	J Vaněk	2	6	77			Q	J Vaněk	6	6
		S Koubek	3	6	6				S Koubek	4	4
	8	P-H Mathieu	6	1	3

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	R Nadal	6	6
		V Hănescu	4	4				6	R Nadal	6	6
		Á Calatrava	4	6	4			PR	A Di Pasquale	2	4
	PR	A Di Pasquale	6	3	6										6	R Nadal	6	6
		T Zíb	4	2											Q	F Squillari	3	4
	Q	F Squillari	6	6				Q	F Squillari	6	6
	WC	Ł Kubot	6	6				WC	Ł Kubot	2	3
	4	I Andreev	4	2																		6	R Nadal	7	6
	7	A Montañés	0	2																		Q	F Mantilla	5	1
	Q	F Mantilla	6	6				Q	F Mantilla	5	7	7
		A Portas	6	6					A Portas	7	5	5
		M Vassallo Argüello	1	2											Q	F Mantilla	6	6
		O Mutis	6	6												A García	3	3
		R Ramírez Hidalgo	4	3					O Mutis	2	69
		A García	3	77	6				A García	6	711
	2	N Davydenko	6	65	4

References

• Main Draw