Singles
2020 Bangkok Challenger II
Champion	Federico Gaio
Runner-up	Robin Haase
Score	6–1, 4–6, 4–2 ret.

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

Federico Gaio won the title after Robin Haase retired in the final trailing 1–6, 6–4, 2–4 in the third set.

Seeds

All seeds receive a bye into the second round.

Draw

Finals

	Quarterfinals							Semifinals							Final
	1	Jiří Veselý	63	3
	8	Federico Gaio	77	6
								8	Federico Gaio	6	6
								14	Dmitry Popko	4	3
	14	Dmitry Popko	6	6
		Daniel Altmaier	0	4
															8	Federico Gaio	6	4	4
															10	Robin Haase	1	6	2r
		Roman Safiullin	6	4	3
		Hugo Grenier	2	6	6
									Hugo Grenier	65	3
								10	Robin Haase	77	6
	10	Robin Haase	77	6
	15	Ramkumar Ramanathan	65	2

Top half

Section 1

	First round							Second round							Third round							Quarterfinals
								1	J Veselý	6	3	6
	WC	Thanapet Chanta	63	0					Z Kolář	4	6	3
		Z Kolář	77	6											1	J Veselý	6	3	6
		D Yevseyev	6	6											16	B van de Zandschulp	3	6	4
	WC	P Kovapitukted	3	1					D Yevseyev	65	6	4
								16	B van de Zandschulp	77	1	6
																						1	J Veselý	63	3
																						8	F Gaio	77	6
								12	D Istomin	6	79
		S Giraldo	6	4					S Giraldo	3	67
		G Oliveira	0	1r											12	D Istomin	4	2
	WC	K Samrej	4	3											8	F Gaio	6	6
	Alt	K Uchida	6	6				Alt	K Uchida	6	65	5
								8	F Gaio	3	77	7

Section 2

	First round							Second round							Third round							Quarterfinals
								3	P Lorenzi	3	2
		D-h Lee	1	3					S Mukund	6	6
		S Mukund	6	6												S Mukund	5	4
		N Kuhn	0	77	1										14	D Popko	7	6
	Q	A Karatsev	6	64	6			Q	A Karatsev	6	0	4
								14	D Popko	4	6	6
																						14	D Popko	6	6
																							D Altmaier	0	4
								9	S Ofner	3	2
		E Karlovskiy	6	6					E Karlovskiy	6	6
	WC	Michael Mathayomchand	3	2												E Karlovskiy	5	6	3
		D Altmaier	6	6												D Altmaier	7	4	6
		M Jaziri	2	1					D Altmaier	6	6
								7	M Kližan	3	3

Bottom half

Section 3

	First round							Second round							Third round							Quarterfinals
								6	Zh Zhang	6	1	65
		R Safiullin	6	0					R Safiullin	3	6	77
		Y Bai	1	1r												R Safiullin	6	6
	WC	W Trongcharoenchaikul	5	77	1										WC	W Trongcharoenchaikul	4	4
		GM Moroni	7	64	0r			WC	W Trongcharoenchaikul	3	6	6
								11	R Marcora	6	3	4
																							R Safiullin	6	4	3
																							H Grenier	2	6	6
								13	P Polansky	6	7
		V Galović	3	0r					S Sekiguchi	3	5
		Shuichi Sekiguchi	6	3											13	P Polansky	6	4	64
		H Grenier	6	6												H Grenier	3	6	77
	PR	A De Greef	1	4					H Grenier	6	3	6
								4	A Hoang	0	6	1

Section 4

	First round							Second round							Third round							Quarterfinals
								5	A Balázs	6	3	6
	Alt	F Peliwo	5	4					F Baldi	1	6	4
		F Baldi	7	6											5	A Balázs	4	1r
	Q	M Bašić	3	1											10	R Haase	6	2
		R Olivo	6	6					R Olivo	3	3
								10	R Haase	6	6
																						10	R Haase	77	6
																						15	R Ramanathan	65	2
								15	R Ramanathan	77	1
		B Gojo	64	2					JC Aragone	65	0r
		JC Aragone	77	6											15	R Ramanathan	7	7
		I Marchenko	6	5	4										2	G Soeda	5	5
	Alt	A Molčan	2	7	6			Alt	A Molčan	6	64	2
								2	G Soeda	0	77	6

References

External links

• Main Draw
• Qualifying Draw