Singles
2009 PTT Thailand Open
Champion	Gilles Simon
Runner-up	Viktor Troicki
Score	7–5, 6–3

Jo-Wilfried Tsonga was the defending champion, but lost in the semifinals to Viktor Troicki.
Gilles Simon won in the final 7–5, 6–3, against Viktor Troicki.

Seeds

The top four seeds receive a bye into the second round.

Draw

Finals

	Semifinals							Final
	1	Jo-Wilfried Tsonga	6	2	3
	4	Viktor Troicki	1	6	6
								4	Viktor Troicki	5	3
								2	Gilles Simon	7	6
	6	Jürgen Melzer	4	63
	2	Gilles Simon	6	77

Top half

	First round							Second round							Quarterfinals							Semifinals
								1	J-W Tsonga	63	77	77
	WC	S Devvarman	67	2					E Gulbis	77	64	62
		E Gulbis	79	6											1	J-W Tsonga	67	6	6
	Q	M Chiudinelli	6	6											Q	M Chiudinelli	79	3	4
	Q	F Mayer	3	3				Q	M Chiudinelli	6	77
		M Safin	6	3	6				M Safin	3	64
	5	P Petzschner	2	6	1																	1	J-W Tsonga	6	2	3
																						4	V Troicki	1	6	6
								4	V Troicki	6	77
		T Bellucci	6	79					T Bellucci	3	64
		G García López	4	67											4	V Troicki	77	6
		M Zverev	5	6	6										8	J Isner	63	2
		L Mayer	7	3	3				M Zverev	65	4
	WC	K Wachiramanowong	3	6	65			8	J Isner	77	6
	8	J Isner	6	3	77

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	J Melzer	6	6
		M Daniel	3	2				6	J Melzer	6	6
	Q	M İlhan	4	77	6			Q	M İlhan	4	2
		B Becker	6	64	3										6	J Melzer	6	6
		A Beck	7	77												A Beck	4	2
	Q	É Roger-Vasselin	5	61					A Beck	6	63	6
								LL	D Young	1	77	4
																						6	J Melzer	4	63
	7	F Santoro	6	64	67																	2	G Simon	6	77
		E Korolev	4	77	79				E Korolev	6	6
		R Ginepri	6	6					R Ginepri	1	1
	WC	D Udomchoke	4	3												E Korolev	6	3	4
		K Kim	6	6											2	G Simon	4	6	6
		R Schüttler	4	4					K Kim	2	2
								2	G Simon	6	6

External links

• Main Draw Archived 2009-10-07 at the Wayback Machine
• Qualifying Draw