Singles
2003 Mutua Madrileña Masters Madrid
Final
Champion	Juan Carlos Ferrero
Runner-up	Nicolas Massú
Score	6–3, 6–4, 6–3
Events
Singles Doubles
← 2002 · Mutua Madrileña Masters Madrid · 2004 →

Juan Carlos Ferrero defeated Nicolás Massú in the final, 6–3, 6–4, 6–3 to win the singles tennis title at the 2003 Madrid Open.

Andre Agassi was the reigning champion, but did not compete that year.

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. All sixteen seeds received a bye into the second round.

	Quarterfinals							Semifinals							Final
	1	Juan Carlos Ferrero	6	6
	7	Paradorn Srichaphan	4	2
								1	Juan Carlos Ferrero	6	4	6
								3	Roger Federer	4	6	4
	3	Roger Federer	4	77	6
	11	Feliciano López	6	63	4
															1	Juan Carlos Ferrero	6	6	6
																Nicolas Massú	3	4	3
	6	Sébastien Grosjean	6	66	2
	15	Younes El Aynaoui	3	78	6
								15	Younes El Aynaoui	5	4
									Nicolas Massú	7	6
		Juan Ignacio Chela	77	4	4
		Nicolás Massú	65	6	6

	First round							Second round							Third round							Quarterfinals
								1	J C Ferrero	6	2	77
		W Ferreira	79	77					W Ferreira	3	6	64
		I Ljubičić	67	65											1	J C Ferrero	77	77
		Y Kafelnikov	3	r											16	F Mantilla	62	60
	Q	T Enqvist	6					Q	T Enqvist	2	63
								16	F Mantilla	6	77
																						1	J C Ferrero	6	6
																						7	P Srichaphan	4	2
								10	S Schalken	66	2
	Q	J-M Gambill	6	6				Q	J-M Gambill	78	6
		N Davydenko	3	3											Q	J-M Gambill	5	4
		F González	3	63											7	P Srichaphan	7	6
		A Costa	6	77					A Costa	3	77	1
								7	P Srichaphan	6	65	6

	First round							Second round							Third round							Quarterfinals
								3	R Federer	6	6
	WC	À Corretja	6	3	6			WC	À Corretja	4	3
	WC	R Nadal	2	6	4										3	R Federer	6	77
		M Fish	77	6												M Fish	3	64
		T Henman	64	3					M Fish	716	6
								14	T Robredo	614	2
																						3	R Federer	4	77	6
																							F López	6	63	4
								9	M Philippoussis	4	6	3
		M Zabaleta	2	6	3				F López	6	3	6
		F López	6	3	6											F López	65	6	7
		J Nieminen	6	5	2										5	C Moyá	77	1	5
		G Gaudio	3	7	6				G Gaudio	6	5	3
								5	C Moyá	3	7	6

	First round							Second round							Third round							Quarterfinals
								6	S Grosjean	6	6
	Q	D Ferrer	1	6	6			Q	D Ferrer	4	2
		M Youzhny	6	4	4										6	S Grosjean	6	6
		V Spadea	6	7												V Spadea	3	2
	Q	C Rochus	4	5					V Spadea	77	3	6
								12	A Calleri	65	6	3
																						6	S Grosjean	6	66	2
																						15	Y El Aynaoui	3	78	6
								15	Y El Aynaoui	6	6
		M Safin	6	5	4				J Björkman	4	4
		J Björkman	4	7	6										15	Y El Aynaoui	6	77
	Q	O Rochus	3	3												R Ginepri	4	65
		R Ginepri	6	6					R Ginepri	6	6
								4	R Schüttler	2	4

	First round							Second round							Third round							Quarterfinals
								8	J Novák	6	1	6
		A Clément	63	6	3				K Kučera	2	6	2
		K Kučera	77	4	6										8	J Novák	6	65	2
	Q	A Martín	4	6	1											J I Chela	3	77	6
		J I Chela	6	1	6				J I Chela	6	6
								11	M Verkerk	2	2
																							J I Chela	77	4	4
																							N Massú	65	6	6
								13	G Kuerten	3	5
	WC	F Verdasco	62	4					N Massú	6	7
		N Massú	77	6												N Massú	77	6
		J Blake	5	2											2	A Roddick	63	2
		M Mirnyi	7	6					M Mirnyi	1	711	5
								2	A Roddick	6	69	7

• 2003 Mutua Madrileña Masters Madrid Draw
• 2003 Mutua Madrileña Masters Madrid Qualifying Draw