Carlos Moyá was the defending champion but lost in the quarterfinals to Félix Mantilla.

Agustín Calleri won in the final 7–5, 3–6, 6–3 against Mariano Zabaleta.

	Semifinals							Final
		Felix Mantilla	2	2
		Agustín Calleri	6	6
									Agustín Calleri	7	3	6
									Mariano Zabaleta	5	6	3
	WC/6	Gustavo Kuerten	64	77	5
		Mariano Zabaleta	77	63	7

	First round							Second round							Quarterfinals							Semifinals
	1	C Moyá	6	6
		F Saretta	0	2				1	C Moyá	4	6	6
	LL	R Mello	6	4	6			LL	R Mello	6	3	2
	WC	F Clavet	4	6	1										1	C Moyá	4	64
		A Martín	2	1												F Mantilla	6	77
		F Vicente	6	6					F Vicente	3	4
		F Mantilla	77	77					F Mantilla	6	6
	5	J I Chela	64	61																			F Mantilla	2	2
	3	G Gaudio	1	6	6																		A Calleri	6	6
		D Sánchez	6	4	4			3	G Gaudio	65	65
		A Calleri	6	6					A Calleri	77	77
	WC	M Gallardo-Valles	1	3												A Calleri	6	7
		F Meligeni	1	4											7	M Ríos	3	5
	LL	J A Marín	6	6				LL	J A Marín	3	1
		F Squillari	6	0	4			7	M Ríos	6	6
	7	M Ríos	2	6	6

	First round							Second round							Quarterfinals							Semifinals
	WC/6	G Kuerten	62	712	6
	Q	N Coutelot	77	610	2			WC/6	G Kuerten	5	6	6
		D Ferrer	6	6					D Ferrer	7	1	2
		A Portas	1	4											WC/6	G Kuerten	6	0
		A Montañés	3	0											4	F González	4	0r
		S Sargsian	6	6					S Sargsian	3	6	65
	Q	R R Hidalgo	1	6	66			4	F González	6	4	77
	4	F González	6	3	78																	WC/6	G Kuerten	64	77	5
	8	N Lapentti	2	1																			M Zabaleta	77	63	7
		L Horna	6	6					L Horna	6	3	2
		A Sá	5	6	61			Q	I Miranda	2	6	6
	Q	I Miranda	7	4	77										Q	I Miranda	5	3
	Q	F Volandri	1	2												M Zabaleta	7	6
		M Zabaleta	6	6					M Zabaleta	65	6	6
		N Massú	6	1	4			2	D Nalbandian	77	0	0
	2	D Nalbandian	2	6	6

• 2003 Abierto Mexicano Telefonica Movistar Draw
• 2003 Abierto Mexicano Telefonica Movistar Qualifying Draw