2020 Bangkok Challenger II – Singles

Singles
	2020 Bangkok Challenger II
Champion	Federico Gaio
Runner-up	Robin Haase
Final 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.

Jiří Veselý (Quarterfinals)
Go Soeda (Third round)
Paolo Lorenzi (Second round)
Antoine Hoang (Second round)
Attila Balázs (Third round, retired)
Zhang Zhizhen (Second round)
Martin Kližan (Second round)
Federico Gaio (Champion)
Sebastian Ofner (Second round)
Robin Haase (Final, retired)
Roberto Marcora (Second round)
Denis Istomin (Third round)
Peter Polansky (Third round)
Dmitry Popko (Semifinals)
Ramkumar Ramanathan (Quarterfinals)
Botic van de Zandschulp (Third round)

Draw

Key

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	2^r
	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
	Denis 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	1^r						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	1^r								R Safiullin	6	6
WC	W Trongcharoenchaikul	5	7⁷	1						WC	W Trongcharoenchaikul	4	4
	GM Moroni	7	6⁴	0^r	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	0^r			S Sekiguchi	3	5
	Shuichi Sekiguchi	6	3							13	P Polansky	6	4	6⁴
	Hugo 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	1^r
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	0^r
	JC Aragone	7⁷	6							15	R Ramanathan	7	7
	I Marchenko	6	5	4						2	G Soeda	5	5
Alt	Alex Molčan	2	7	6	Alt	A Molčan	6	6⁴	2
					2	G Soeda	0	7⁷	6

gollark: The embeddings for your example sentences are the same each time you run the model, so you can just store them somewhere and run the cosine similarity thing on all of them in bulk.

gollark: Well, it doesn't look like you ever actually move the `roberta-large-mnli` model to your GPU, but I think the Sentence Transformers one is slow because you're using it wrong.

gollark: For the sentence_transformers one, are you precomputing the embeddings for the example sentences *then* just cosine-similaritying them against the new sentence? Because if not that's probably a very large bottleneck.

gollark: sentence_transformers says you should be able to do several thousand sentences a second on a V100, which I'm pretty sure is worse than your GPU. Are you actually running it on the GPU?

gollark: https://www.theverge.com/2021/10/28/22751220/facebook-portal-oculus-quest-meta-horizon-renaming

References

"James Duckworth wins Bangkok Challenger II, returns to world's top 200". www.sportingnews.com.

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[1] "James Duckworth wins Bangkok Challenger II, returns to world's top 200". www.sportingnews.com.