2021 Astana Open – Men's singles

Men's singles
2021 Astana Open
2020 Champion	John Millman

Main article: 2021 Astana Open

John Millman was the defending champion, but lost in the quarterfinals to James Duckworth.

Seeds

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

1. Aslan Karatsev (Second round)
2. Alexander Bublik
3. Dušan Lajović (Second round)
4. Filip Krajinović (Second round)
5. John Millman (Quarterfinals)
6. Benoît Paire (First round)
7. Laslo Đere (Quarterfinals)
8. Ilya Ivashka

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

Finals

	Semifinals							Final
	8	Ilya Ivashka	3
		James Duckworth	6
		Kwon Soon-woo
	2	Alexander Bublik

Top half

	First Round							Second Round							Quarterfinals							Semifinals
								1	A Karatsev	66	4
		E Ruusuvuori	6	0					E Ruusuvuori	78	6
		B Bonzi	2	0r												E Ruusuvuori	6	4	1
		A Seppi	63	6	1										8	I Ivashka	4	6	6
	WC	T Skatov	77	4	6			WC	T Skatov	2	3
	Q	E Ymer	2	4				8	I Ivashka	6	6
	8	I Ivashka	6	6																		8	I Ivashka	3
																							J Duckworth	6
								4	F Krajinović	62	3
	WC	M Kukushkin	63	1					J Duckworth	77	6
		J Duckworth	77	6												J Duckworth	6	6
		J Veselý	3	66											5	J Millman	4	4
		J Munar	6	78					J Munar	4	77	5
	Q	D Popko	6	1	4			5	J Millman	6	65	7
	5	J Millman	3	6	6

Bottom half

	First Round							Second Round							Quarterfinals							Semifinals
	7	L Đere	6	3	6
		DE Galán	4	6	4			7	L Đere	6	63	6
	Q	M Polmans	4	6	4				L Musetti	4	77	4
		L Musetti	6	2	6										7	L Đere	64	6	0
		S-w Kwon	6	6												S-w Kwon	77	2	6
	Q	E Donskoy	4	3					S-w Kwon	7	6
								3	D Lajović	5	4
																							S-w Kwon
	6	B Paire	5	4																		2	A Bublik
		E Gerasimov	7	6					E Gerasimov	7	65	5
		C Taberner	7	6					C Taberner	5	77	7
		R Berankis	5	4												C Taberner	3	4
	WC	F Verdasco	4	2											2	A Bublik	6	6
		M Kecmanović	6	6					M Kecmanović	6	3	5
								2	A Bublik	2	6	7

Qualifying

Seeds

1. Jurij Rodionov (First round)
2. Maxime Cressy (Qualifying competition)
3. Marc Polmans (Qualified)
4. Evgeny Donskoy (Qualified)
5. Illya Marchenko (First round)
6. Kacper Żuk (First round)
7. Elias Ymer (Qualified)
8. Dmitry Popko (Qualified)

Qualifiers

1. Dmitry Popko
2. Elias Ymer
3. Marc Polmans
4. Evgeny Donskoy

Qualifying draw

First qualifier

	First Round							Qualifying Competition
	1	Jurij Rodionov	5	4
		Matthew Ebden	7	6
									Matthew Ebden	6	3	4
								8	Dmitry Popko	3	6	6
	WC	Simon Anthony Ivanov	2	3
	8	Dmitry Popko	6	6

Second qualifier

	First Round							Qualifying Competition
	2	Maxime Cressy	6	2
		Bernard Tomic	3	1r
								2	Maxime Cressy	3	6	4
								7	Elias Ymer	6	4	6
	WC	Grigoriy Lomakin	3	2
	7	Elias Ymer	6	6

Third qualifier

	First Round							Qualifying Competition
	3	Marc Polmans	2	7	4
		Gian Marco Moroni	6	5	1r
								3	Marc Polmans	6	6
								Alt	Denis Yevseyev	4	2
	Alt	Denis Yevseyev	6	6
	5	Illya Marchenko	4	4

Fourth qualifier

	First Round							Qualifying Competition
	4	Evgeny Donskoy	77	6
		Andrea Vavassori	64	2
								4	Evgeny Donskoy	6	77
									Pavel Kotov	3	64
		Pavel Kotov	6	6
	6	Kacper Żuk	2	3

References

• Main draw
• Qualifying draw