Singles
2020 Bangkok Challenger
Champion	Attila Balázs
Runner-up	Aslan Karatsev
Score	7–6(7–5), 0–6, 7–6(8–6)

Henri Laaksonen was the defending champion^[1] but chose not to defend his title.

Attila Balázs won the title after defeating Aslan Karatsev 7–6^(7–5), 0–6, 7–6^(8–6) in the final.

Seeds

All seeds receive a bye into the second round.

Draw

Finals

	Quarterfinals							Semifinals							Final
		Aslan Karatsev	6	6
		Wu Di	2	2
									Aslan Karatsev	6	6
								9	Gian Marco Moroni	2	2
		Andrea Arnaboldi	2	4
	9	Gian Marco Moroni	6	6
																Aslan Karatsev	65	6	66
															2	Attila Balázs	77	0	78
	6	Roman Safiullin	6	6
	15	Borna Gojo	4	4
								6	Roman Safiullin	1	77	65
								2	Attila Balázs	6	64	77
	8	Evgeny Karlovskiy	1	5
	2	Attila Balázs	6	7

Top half

Section 1

	First round							Second round							Third round							Quarterfinals
								1	J Veselý	4	77	2
		A Karatsev	6	6					A Karatsev	6	60	6
	WC	Congsup Congcar	0	0												A Karatsev	6	3	6
	WC	W Trongcharoenchaikul	4	2												M Bašić	4	6	4
		M Bašić	6	6					M Bašić	77	7
								16	D Altmaier	65	5
																							A Karatsev	6	6
																							D Wu	2	2
								LL	T Brkić	77	4	1
		U Ignatik	6	65	0r			Q	V Orlov	62	6	6
	Q	V Orlov	3	77	2										Q	V Orlov	6	4	3
		E King	3	2												D Wu	2	6	6
		D Wu	6	6					D Wu	6	77
								7	I Marchenko	1	65

Section 2

	First round							Second round							Third round							Quarterfinals
								3	R Haase	3	6	1
		C İlkel	6	4	5				A Arnaboldi	6	3	6
		A Arnaboldi	3	6	7											A Arnaboldi	4	77	6
	Alt	S Doumbia	2	4											13	S Giraldo	6	62	4
	Q	Sidharth Rawat	6	6				Q	S Rawat	6	65	4
								13	S Giraldo	3	77	6
																							A Arnaboldi	2	4
																						9	GM Moroni	6	6
								9	GM Moroni	6	79
		A Pellegrino	6	3	2				V Durasovic	4	67
		V Durasovic	2	6	6										9	GM Moroni	3	6	6
	WC	K Samrej	1	2												C-h Tseng	6	4	3
		C-h Tseng	6	6					C-h Tseng	6	6
								5	M Jaziri	3	3

Bottom half

Section 3

	First round							Second round							Third round							Quarterfinals
								6	R Safiullin	6	6
		F Peliwo	7	3	6				F Peliwo	2	3
		G Escobar	5	6	4										6	R Safiullin	6	6
		T-h Yang	3	4												Ze Zhang	2	1
		Ze Zhang	6	6					Ze Zhang	6	6
								12	G Oliveira	4	2
																						6	R Safiullin	6	6
																						15	B Gojo	4	4
								15	B Gojo	6	6
	WC	Michael Mathayomchand	3	0					A Nedovyesov	1	4
		A Nedovyesov	6	6											15	B Gojo	6	6
		J Draper	77	6											4	D Istomin	3	0
		Y-s Chung	65	3					J Draper	4	2
								4	D Istomin	6	6

Section 4

	First round							Second round							Third round							Quarterfinals
								8	E Karlovskiy	78	6
		K Uchida	1	6	1				L Klein	66	4
		L Klein	6	3	6										8	E Karlovskiy	6	77
	WC	P Kovapitukted	2	6	6										10	R Olivo	0	63
		A Çelikbilek	6	2	1			WC	P Kovapitukted	63	64
								10	R Olivo	77	77
																						8	E Karlovskiy	1	5
																						2	A Balázs	6	7
								14	JC Aragone	77	6
		A Molčan	6	6					A Molčan	62	1
		A De Greef	2	2											14	JC Aragone	3	6	4
		J Rodionov	2	3											2	A Balázs	6	3	6
		D Yevseyev	6	6					D Yevseyev	3	5
								2	A Balázs	6	7

References

External links

• Main draw
• Qualifying draw