Singles
2009 Chennai Open
Champion	Marin Čilić
Runner-up	Somdev Devvarman
Score	6–4, 7–6(7–3)
Draw	32
Seeds	8

Mikhail Youzhny was the defending champion, but chose not to participate that year.

Marin Čilić won in the final 6–4, 7–6^(7–3), against Somdev Devvarman.

Seeds

Draw

Finals

	Semifinals							Final
	8	Marcel Granollers	4	3
	3	Marin Čilić	6	6
								3	Marin Čilić	6	77
								WC	Somdev Devvarman	4	63
	WC	Somdev Devvarman	w/o
	5	Rainer Schüttler

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	N Davydenko	6	6
		D Köllerer	2	3				1	N Davydenko
	WC	L Dlouhý	3	6	6			WC	L Dlouhý	w/o
		G Soeda	6	2	4										WC	L Dlouhý	5	6	4
		R Karanušić	1	0											8	M Granollers	7	2	6
		A Beck	6	6					A Beck	4	1
		H-t Lee	4	5				8	M Granollers	6	6
	8	M Granollers	6	7																		8	M Granollers	4	3
	3	M Čilić	6	6																		3	M Čilić	6	6
		A Martín	4	4				3	M Čilić	6	6
		D Istomin	6	77					D Istomin	0	4
	Q	R Bopanna	4	63											3	M Čilić	6	0	6
		R Ramírez Hidalgo	6	63	1										7	J Tipsarević	4	6	4
		D Sela	4	77	6				D Sela	63	4
		P Andújar	3	2				7	J Tipsarević	77	6
	7	J Tipsarević	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	C Moyá	6	77
	Q	D Udomchoke	3	64				6	C Moyá	6	5	4
	WC	S Devvarman	6	6				WC	S Devvarman	4	7	6
		K Kim	3	3											WC	S Devvarman	77	6
		W Odesnik	3	0											4	I Karlović	64	4
		I Minář	6	6					I Minář	1	4
	Q	R Ram	4	3				4	I Karlović	6	6
	4	I Karlović	6	6																		WC	S Devvarman	w/o
	5	R Schüttler	6	4	6																	5	R Schüttler
	WC	P Amritraj	2	6	1			5	R Schüttler	6	6
		D Gimeno-Traver	3	4					S Greul	4	2
		S Greul	6	6											5	R Schüttler	6	7
		B Phau	6	7												B Phau	2	5
		S Ventura	2	5					B Phau	6	6
	Q	F Cipolla	6	6				Q	F Cipolla	1	2
	2	S Wawrinka	4	1

Qualifying

Draw

First qualifier

	First round							Second round							Qualifying competition
	1	Flavio Cipolla	6	6
		Navdeep Singh	4	3
								1	Flavio Cipolla	6	6
									Yūichi Sugita	3	4
		Pavol Červenák	1	2
		Yūichi Sugita	6	6
															1	Flavio Cipolla	6	6
															7	Alexander Satschko	3	1
		Rohan Gajjar	6	2	77
	WC	Abhijeet Tiwari	0	6	62
									Rohan Gajjar	2	4
								7	Alexander Satschko	6	6
		Lovro Zovko	2	5
	7	Alexander Satschko	6	7

Second qualifier

	First round							Second round							Qualifying competition
	2	Michael Berrer	6	6
		Rohan Gide	1	2
								2	Michael Berrer	6	6
									Ranjeet Virali-Murugesan	1	1
		Vikram Reddy B	63	2
		Ranjeet Virali-Murugesan	77	6
															2	Michael Berrer	6	3	4
																Rohan Bopanna	4	6	6
	WC	Sanam Singh	4	6	6
		Yuki Bhambri	6	4	1
								WC	Sanam Singh	3	4
									Rohan Bopanna	6	6
		Rohan Bopanna	63	77	77
	6	Michel Koning	77	61	64

Third qualifier

	First round							Second round							Qualifying competition
	3	Danai Udomchoke	6	6
		Vijay Sundar Prashanth	4	2
								3	Danai Udomchoke	6	6
									Louk Sorensen	4	4
		Vinod Sridhar	0	4
		Louk Sorensen	6	6
															3	Danai Udomchoke	77	6
															8	Im Kyu-tae	65	1
		Ronak Manuja	2	2
	WC	Sriram Balaji	6	6
								WC	Sriram Balaji	0	77	2
								8	Im Kyu-tae	6	64	6
	WC	Naveen Saai	0	0
	8	Im Kyu-tae	6	6

Fourth qualifier

	First round							Second round							Qualifying competition
	4	Rajeev Ram	6	6
		Tatsuma Ito	4	2
								4	Rajeev Ram	6	6
									Oliver Marach	2	4
		Ashutosh Singh	3	3
		Oliver Marach	6	6
															4	Rajeev Ram	6	64	6
															5	Alexander Kudryavtsev	4	77	3
		Purav Raja	6	2r
		Vignesh Peranamallur	3	4
									Vignesh Peranamallur	1	65
								5	Alexander Kudryavtsev	6	77
		Sunil-Kumar Sipaeya	4	5
	5	Alexander Kudryavtsev	6	7

External links

• Main draw
• Qualifying draw