Men's singles
2003 Idea Prokom Open
Champion	Guillermo Coria
Runner-up	David Ferrer
Score	7–5, 6–1

José Acasuso was the defending champion but did not compete that year.

Guillermo Coria won in the final 7–5, 6–1 against David Ferrer.

Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

	First round							Second round							Quarterfinals							Semifinals							Final
	1	J C Ferrero	6	6
	WC	B Dąbrowski	3	1				1	J C Ferrero	4	7	6
	Q	F Čermák	6	6				Q	F Čermák	6	5	2
	Q	F Urban	4	2											1	J C Ferrero	1	61
		A Sávolt	1	1												L Horna	6	77
		L Horna	6	6					L Horna	6	6
	WC	M Fyrstenberg	5	3				7	D Hrbatý	3	1
	7	D Hrbatý	7	6																			L Horna	2	2
	3	G Coria	6	6																		3	G Coria	6	6
		V Hănescu	3	4				3	G Coria	6	6
		C Rochus	6	6					C Rochus	1	0
		F Browne	3	3											3	G Coria	6	6
	Q	M-K Goellner	6	4	6										8	O Mutis	3	4
		M Kratochvil	4	6	3			Q	M-K Goellner	4	2
		A Voinea	2	4				8	O Mutis	6	6
	8	O Mutis	6	6																									3	Guillermo Coria	7	6
	6	D Sánchez	6	6																										David Ferrer	5	1
		M Norman	4	2				6	D Sánchez	3	4
		G Galimberti	3	2					A Vinciguerra	6	6
		A Vinciguerra	6	6												A Vinciguerra	1	2
	Q	B Ulihrach	62	2												D Ferrer	6	6
		D Ferrer	77	6					D Ferrer	6	4	6
		M Rosset	2	4				4	D Nalbandian	4	6	3
	4	D Nalbandian	6	6																			D Ferrer	62	6	6
	5	F Volandri	4	0																			R Ramírez Hidalgo	77	3	4
		M Puerta	6	6					M Puerta	3	3
		R Ramírez Hidalgo	7	3	6				R Ramírez Hidalgo	6	6
		J Knowle	5	6	1											R Ramírez Hidalgo	67	6	6
	WC	M Matkowski	0	1												G Blanco	79	4	0
		G Blanco	6	6					G Blanco	3	6	6
		A Portas	77	66	7				A Portas	6	1	4
	2	C Moyá	64	78	5

References

• 2003 Idea Prokom Open Draw