Lee Hyung-taik won his first (and only) ATP Tour title, defeating Juan Carlos Ferrero in the final, 4–6, 7–6^(8–6), 7–6^(7–4). He saved a championship point in the third set and became the first South Korean player to win an ATP title.^[1][2]

Roger Federer was the defending champion, but lost in the first round to lucky loser Franco Squillari.

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

	First round							Second round							Quarterfinals							Semifinals							Final
	1	M Safin	6	6
		O Rochus	1	4				1	M Safin	3	6	6
	Q	P Luczak	0	6	5				J Nieminen	6	1	2
		J Nieminen	6	3	7										1	M Safin
	Q	H-T Lee	6	6											Q	H-T Lee	w/o
		N Lapentti	2	0				Q	H-T Lee	77	7
		T Robredo	2	2				6	A Roddick	65	5
	6	A Roddick	6	6																		Q	H-T Lee	6	6
	4	R Federer	2	3																			W Ferreira	3	3
	LL	F Squillari	6	6				LL	F Squillari	6	6
	SE	N Davydenko	6	6				SE	N Davydenko	1	4
	WC	R Durek	3	4											LL	F Squillari	0	4
		T Enqvist	2	4												W Ferreira	6	6
		W Ferreira	6	6					W Ferreira	65	6	6
		J I Chela	77	6					J I Chela	77	4	4
	5	A Costa	64	1																									Q	Hyung-Taik Lee	4	78	77
	8	G Gaudio	65	6	7																								2	Juan Carlos Ferrero	6	66	64
	WC	T Reid	77	2	5			8	G Gaudio	65	0
		I Ljubičić	2	61					R Schüttler	77	6
		R Schüttler	6	77												R Schüttler	77	6
		R Krajicek	60	4											Q	M Fish	65	4
	Q	M Fish	77	6				Q	M Fish	77	4	6
		J Blake	3	78	3			3	C Moyá	64	6	4
	3	C Moyá	6	66	6																		R Schüttler	6	3	2
	7	P Srichaphan	6	3	6																	2	J C Ferrero	3	6	6
	WC	S Draper	4	6	1			7	P Srichaphan	3	6	6
		M Mirnyi	77	65	6				M Mirnyi	6	4	4
		X Malisse	65	77	3										7	P Srichaphan	3	1
		M Youzhny	3	2											2	J C Ferrero	6	6
	SE	A Voinea	6	1	r				M Youzhny	3	2
	Q	J Crabb	7	5	3			2	J C Ferrero	6	6
	2	J C Ferrero	5	7	6

• 2003 Adidas International draw
• 2003 Adidas International Singles Qualifying draw