Singles
2019 Bangkok Challenger
Champion	Henri Laaksonen
Runner-up	Dudi Sela
Score	6–2, 6–4

Marcel Granollers was the defending champion but chose not to defend his title.

Henri Laaksonen won the title after defeating Dudi Sela 6–2, 6–4 in the final.

Seeds

All seeds receive a bye into the second round.

Draw

Finals

	Quarterfinals							Semifinals							Final
		JC Aragone	63	5
		James Duckworth	77	7
									James Duckworth	65	7	4
								3	Henri Laaksonen	77	5	6
	3	Henri Laaksonen	77	4	6
	12	Go Soeda	64	6	3
															3	Henri Laaksonen	6	6
															14	Dudi Sela	2	4
	10	Tobias Kamke	6	4	2
	14	Dudi Sela	1	6	6
								14	Dudi Sela	4
								2	Tatsuma Ito	2r
		Kwon Soon-woo	3	6	1
	2	Tatsuma Ito	6	4	6

Top half

Section 1

	First round							Second round							Third round							Quarterfinals
								1	P Gunneswaran	3	1
		JC Aragone	6	6					JC Aragone	6	6
		G Elias	4	2												JC Aragone	79	65	2
		G Oliveira	4	4											13	G Mager	67	77	0r
		E López Pérez	6	6					E López Pérez	5	3
								13	G Mager	7	6
																							JC Aragone	63	5
																							J Duckworth	77	7
								11	Ze Zhang	5	3
		J Duckworth	6	7					J Duckworth	7	6
	ITF	I Nedelko	3	5												J Duckworth	4	6	6
		T-h Yang	2	6	4										WC	J Tipsarević	6	3	2
	WC	J Tipsarević	6	4	6			WC	J Tipsarević	6	3	6
								6	M Polmans	2	6	3

Section 2

	First round							Second round							Third round							Quarterfinals
								3	H Laaksonen	6	6
		S Robert	5	6	6				S Robert	3	1
	WC	P Kovapitukted	7	3	4										3	H Laaksonen	6	6
		Z Li	6	79											16	T de Bakker	4	3
		S Myneni	4	67					Z Li	4	6	4
								16	T de Bakker	6	4	6
																						3	H Laaksonen	77	4	6
																						12	G Soeda	64	6	3
								12	G Soeda	6	6
		B Mousley	2	6	2			WC	P Wattanakul	3	3
	WC	Pol Wattanakul	6	3	6										12	G Soeda	6	6
	WC	W Trongcharoenchaikul	3	3											8	V Troicki	0	4
		D-h Lee	6	6					D-h Lee	1	2
								8	V Troicki	6	6

Bottom half

Section 3

	First round							Second round							Third round							Quarterfinals
								5	Y Sugita	6	6
	Q	E Tiurnev	3	1				ITF	D Kuzmanov	4	4
	ITF	D Kuzmanov	6	6											5	Y Sugita	6	0	4
	Alt	D Yevseyev	6	6											10	T Kamke	3	6	6
		C Hemery	2	2				Alt	D Yevseyev	5	1
								10	T Kamke	7	6
																						10	T Kamke	6	4	2
																						14	D Sela	1	6	6
								14	D Sela	65	6	6
		D Wu	77	2	2				L Grigelis	77	0	2
		L Grigelis	63	6	6										14	D Sela	6	6
		K King	4	77	3											M Purcell	2	2
		M Purcell	6	63	6				M Purcell	1	6	6
								4	C Moutet	6	3	3

Section 4

	First round							Second round							Third round							Quarterfinals
								7	H Moriya	1	5
		S-w Kwon	6	6					S-w Kwon	6	7
		S Mukund	1	1												S-w Kwon	6	6
	ITF	O Roca Batalla	77	7											ITF	O Roca Batalla	1	1
		E Couacaud	65	5				ITF	O Roca Batalla	6	3	79
								9	A Nedovyesov	2	6	67
																							S-w Kwon	3	6	1
																						2	T Ito	6	4	6
								15	A Davidovich Fokina	6	7
		J Hernández-Fernández	6	6					J Hernández-Fernández	4	5
	Q	I Gakhov	4	1											15	A Davidovich Fokina	6	3	4
	WC	Natthasith Kunsuwan	2	4											2	T Ito	1	6	6
	ITF	D Pérez Sanz	6	6				ITF	D Pérez Sanz	4	2
								2	T Ito	6	6

References

• Main draw
• Qualifying draw