Singles
2003 AAPT Championships
Final
Champion	Nikolay Davydenko
Runner-up	Kristof Vliegen
Score	6–2, 7–6(7–3)
Details
Seeds	8
Events
Singles Doubles
← 2002 · AAPT Championships · 2004 →

Tim Henman was the defending champion but did not compete that year.

Nikolay Davydenko won in the final 6–2, 7–6^(7–3) against Kristof Vliegen.

	Semifinals							Final
		Richard Krajicek	61	6	3
	Q	Kristof Vliegen	77	4	6
								Q	Kristof Vliegen	2	63
									Nikolay Davydenko	6	77
		Nikolay Davydenko	6	6
		Adrian Voinea	2	1

	First round							Second round							Quarterfinals							Semifinals
	1	W Ferreira	64	2
		F Squillari	77	6					F Squillari	4	3
	WC	S Draper	64	4					R Krajicek	6	6
		R Krajicek	77	6												R Krajicek	6	6
	WC	A Kennedy	6	2	0											B Vahaly	1	3
		B Vahaly	4	6	6				B Vahaly	77	6
	WC	T Reid	6	3	3			8	V Spadea	61	2
	8	V Spadea	3	6	6																		R Krajicek	61	6	3
	3	T Enqvist	6	4	3																	Q	K Vliegen	77	4	6
	Q	K Vliegen	3	6	6			Q	K Vliegen	6	6
	Q	A Parmar	65	6	6			Q	A Parmar	2	2
		H Levy	77	4	1										Q	K Vliegen	6	6
		A Di Pasquale	6	3	4										6	A Martín	3	4
	Q	R Gasquet	3	6	6			Q	R Gasquet	5	1
		J Melzer	1	3				6	A Martín	7	6
	6	A Martín	6	6

	First round							Second round							Quarterfinals							Semifinals
	5	M Zabaleta	6	6
		A Waske	1	4				5	M Zabaleta	6	6
	Q	F Serra	3	4					M Verkerk	4	4
		M Verkerk	6	6											5	M Zabaleta	63	1
		N Davydenko	6	77												N Davydenko	77	6
		I Labadze	2	65					N Davydenko	4	6	711
		J Morrison	4	3				4	I Ljubičić	6	4	69
	4	I Ljubičić	6	6																			N Davydenko	6	6
	7	O Rochus	1	6	64																		A Voinea	2	1
		A Voinea	6	4	77				A Voinea	6	6
		A Kim	2	6	6				A Kim	4	1
		A Sávolt	6	3	3											A Voinea	78	6
		A Dupuis	6	6												A Dupuis	66	4
		K Beck	4	3					A Dupuis	77	6
		S Galvani	65	2				2	M Mirnyi	63	3
	2	M Mirnyi	77	6

• 2003 AAPT Championships Draw
• 2003 AAPT Championships Qualifying Draw