2003 AIG Japan Open Tennis Championships – Men's Singles

Kenneth Carlsen was the defending champion but lost in the third round to Hyung-Taik Lee.

Men's Singles
2003 AIG Japan Open Tennis Championships
Champion	Rainer Schüttler
Runner-up	Sébastien Grosjean
Final score	7–6^(7–5), 6–2
Draw	48 (6 Q / 4 WC )
Seeds	16

Rainer Schüttler won in the final 7–6^(7–5), 6–2 against Sébastien Grosjean.

Seeds

All sixteen seeds received a bye to the second round.

1. Rainer Schüttler (Champion)
2. Sébastien Grosjean (Final)
3. Paradorn Srichaphan (Semifinals)
4. Jiří Novák (Third Round)
5. Mark Philippoussis (Quarterfinals)
6. Nicolas Kiefer (Third Round)
7. Hyung-Taik Lee (Quarterfinals)
8. Jan-Michael Gambill (Quarterfinals)
9. Kenneth Carlsen (Third Round)
10. Mario Ančić (Third Round)
11. n/a
12. John van Lottum (Second Round)
13. Brian Vahaly (Second Round)
14. Wesley Moodie (Second Round)
15. Lars Burgsmüller (Second Round)
16. Grégory Carraz (Second Round)

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

Finals

	Semifinals							Final
	1	Rainer Schüttler	6	6
		Cyril Saulnier	3	2
								1	Rainer Schüttler	7^7	6
								2	Sébastien Grosjean	6^5	2
	3	Paradorn Srichaphan	6	3	4
	2	Sébastien Grosjean	4	6	6

Section 1

	First Round							Second Round							Third Round							Quarterfinals
								1	R Schüttler	6	6
	WC	S Iwabuchi	7^7	6				WC	S Iwabuchi	0	4
		C Mamiit	6^4	2											1	R Schüttler	6	6
		R Kendrick	7^7	6												R Kendrick	3	2
		W Arthurs	6^3	4					R Kendrick	6	3	6
								13	B Vahaly	2	6	4
																						1	R Schüttler	6	6
																							S Draper	3	3
								LL	E Taino	2	6^5
	Q	J Vacek	3	6^4					S Draper	6	7^7
		S Draper	6	7^7												S Draper	7	6
		I Heuberger	2	6^1											6	N Kiefer	5	2
		A Bogomolov, Jr.	6	7^7					A Bogomolov, Jr.	5	6^7
								6	N Kiefer	7	7^9

Section 2

	First Round							Second Round							Third Round							Quarterfinals
								4	J Novák	7^7	6
	Q	B Phau	6^1	7^7	7^7			Q	B Phau	6^2	2
		J Salzenstein	7^7	6^4	6^3										4	J Novák	6	5	4
		J Gimelstob	6^5	6	1											C Saulnier	4	7	6
		C Saulnier	7^7	3	6				C Saulnier	7^8	7^7
								15	L Burgsmüller	6^6	6^4
																							C Saulnier	5
																						5	M Philippoussis	2^r
								10	M Ančić	6	7
		W Eschauer	0	4				Q	T Iwami	2	5
	Q	T Iwami	6	6											10	M Ančić	4	5
		F Browne	6	6											5	M Philippoussis	6	7
	WC	T Terachi	3	4					F Browne	4	3
								5	M Philippoussis	6	6

Section 3

	First Round							Second Round							Third Round							Quarterfinals
								7	H-T Lee	6	6^3	6
	Q	G Weiner	4	2					F Verdasco	3	7^7	3
		F Verdasco	6	6											7	H-T Lee	6	6
		M Vassallo Argüello	0	3											9	K Carlsen	3	4
	WC	G Motomura	6	6				WC	G Motomura	2	6^4
								9	K Carlsen	6	7^7
																						7	H-T Lee	6	6^5	3
																						3	P Srichaphan	4	7^7	6
								14	W Moodie	1	6^3
		A Waske	6^5	3				WC	T Suzuki	6	7^7
	WC	T Suzuki	7^7	6											WC	T Suzuki	2	6^3
		D Norman	7	6											3	P Srichaphan	6	7^7
	Q	G Bastl	5	4					D Norman	6	6^3	6^2
								3	P Srichaphan	4	7^7	7^7

Section 4

	First Round							Second Round							Third Round							Quarterfinals
								8	J-M Gambill	6	6
		I Miranda	6	4	4				B Ulihrach	3	4
		B Ulihrach	2	6	6										8	J-M Gambill	6	7
		T Berdych	6^2	6	3										Q	M Kratochvil	3	5
	Q	M Kratochvil	7^7	4	6			Q	M Kratochvil	6	6
								12	J van Lottum	2	3
																						8	J-M Gambill	3	6^4
																						2	S Grosjean	6	7^7
								16	G Carraz	5	6	5
		A Vinciguerra	6	4	1				D van Scheppingen	7	1	7
		D van Scheppingen	4	6	6											D van Scheppingen	3	6^3
		R Söderling	4	4											2	S Grosjean	6	7^7
		I Karlović	6	6					I Karlović	3	6^8
								2	S Grosjean	6	7^10

References

• 2003 AIG Japan Open Tennis Championships Draw