2008 AIG Japan Open Tennis Championships – Men's singles

David Ferrer was the defending champion, but lost in the quarterfinals to Juan Martín del Potro.

Men's singles
2008 AIG Japan Open Tennis Championships
Champion	Tomáš Berdych
Runner-up	Juan Martín del Potro
Score	6–1, 6–4
Draw	64 (6Q / 4WC)
Seeds	16

Main article: 2008 AIG Japan Open Tennis Championships

Ninth-seeded Tomáš Berdych won in the final 6–1, 6–4, against Juan Martín del Potro.

Seeds

All seeds received a bye into the second round.

1. David Ferrer (quarterfinals)
2. Andy Roddick (semifinals)
3. Fernando González (quarterfinals)
4. Richard Gasquet (semifinals)
5. Juan Martín del Potro (final)
6. Tommy Robredo (third round)
7. Jo-Wilfried Tsonga (third round, retired due to an abdominal strain)
8. Mikhail Youzhny (third round)
9. Tomáš Berdych (champion)
10. Gaël Monfils (withdrew due to a right shoulder injury)
11. Jarkko Nieminen (third round)
12. Rainer Schüttler (quarterfinals)
13. Sam Querrey (second round)
14. Jürgen Melzer (third round)
15. Simone Bolelli (second round)
16. Guillermo García López (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
• SR = Special ranking

Finals

	Quarterfinals							Semifinals							Final
	1	David Ferrer	1	5
	5	Juan Martín del Potro	6	7
								5	Juan Martín del Potro	6	4	7
								4	Richard Gasquet	3	6	5
	4	Richard Gasquet	6	6
	12	Rainer Schüttler	3	2
															5	Juan Martín del Potro	1	4
															9	Tomáš Berdych	6	6
	9	Tomáš Berdych	6	6
	3	Fernando González	0	4
								9	Tomáš Berdych	63	7	77
								2	Andy Roddick	77	5	63
		Viktor Troicki	3	4
	2	Andy Roddick	6	6

Top half

Section 1

	First round							Second round							Third round							Quarterfinals
								1	D Ferrer	6	4	6
		J Levine	4	6	6				J Levine	4	6	1
	Q	D Udomchoke	6	1	0										1	D Ferrer	4	6	6
	WC	Y Sugita	3	66											WC	T Suzuki	6	3	2
	WC	T Suzuki	6	78				WC	T Suzuki	77	4	77
								15	S Bolelli	65	6	65
																						1	D Ferrer	1	5
																						5	JM del Potro	6	7
								11	J Nieminen	79	6
	Q	C Mamiit	3	7	6			Q	C Mamiit	67	4
	LL	B Evans	6	5	4										11	J Nieminen	1	3
		D Sela	7	6											5	JM del Potro	6	6
		B Phau	5	1					D Sela	5	0
								5	JM del Potro	7	6

Section 2

	First round							Second round							Third round							Quarterfinals
								4	R Gasquet	6	6
	Q	M Slanar	4	6	6			Q	M Slanar	4	2
		D Young	6	3	2										4	R Gasquet	6	6
		K Nishikori	77	65	6											K Nishikori	1	2
		R Kendrick	63	77	2				K Nishikori	6	6
								16	G García López	4	4
																						4	R Gasquet	6	6
																						12	R Schüttler	3	2
								12	R Schüttler	6	63	6
	WC	S Iwabuchi	1	4					H-t Lee	3	77	3
		H-t Lee	6	6											12	R Schüttler	6	612	6
		F Cipolla	77	77											8	M Youzhny	3	714	4
		I Navarro	65	64					F Cipolla	2	2
								8	M Youzhny	6	6

Bottom half

Section 3

	First round							Second round							Third round							Quarterfinals
								6	T Robredo	6	6
		J Sirianni	6	6					J Sirianni	2	2
	Q	Y Ito	3	2											6	T Robredo	66	2
		R Karanušić	6	6											9	T Berdych	78	6
	Q	H Kondo	2	2					R Karanušić	3	4
								9	T Berdych	6	6
																						9	T Berdych	6	6
																						3	F González	0	4
								13	S Querrey	65	3
		G Soeda	4	2					A Delić	77	6
		A Delić	6	6												A Delić	4	64
		Y-h Lu	6	77											3	F González	6	77
	Q	L Gregorc	4	65					Y-h Lu	6	5	3
								3	F González	1	7	6

Section 4

	First round							Second round							Third round							Quarterfinals
								7	J-W Tsonga	4	77	6
		B Reynolds	6	6					B Reynolds	6	64	4
	WC	T Ito	3	1											7	J-W Tsonga	7	1r
		W Odesnik	6	6												V Troicki	5	2
		K Kim	4	3					W Odesnik	2	1
									V Troicki	6	6
																							V Troicki	3	4
																						2	A Roddick	6	6
								14	J Melzer	6	6
		S Stadler	6	6					S Stadler	2	3
		P Petzschner	2	4											14	J Melzer	62	2
		I Minář	711	2	6										2	A Roddick	77	6
		M Zverev	69	6	2				I Minář	611	77	62
								2	A Roddick	713	64	77

External links

• Draw
• Qualifying draw