2021 US Open – Boys' singles

Boys' singles
2021 US Open
Champion	Daniel Rincón
Runner-up	Shang Juncheng
Score	6–2, 7–6(8–6)

Main article: 2021 US Open (tennis)

Jonáš Forejtek was the defending champion, having won the previous edition in 2019, but was no longer eligible to participate in junior events.

Daniel Rincón won the title, defeating Shang Juncheng in the final, 6–2, 7–6^(8–6).

Seeds

All seeds received a bye into the second round.

01.   Shang Juncheng (final)

02.   Samir Banerjee (quarterfinals)

03.   Daniel Rincón (champion)

04.   Bruno Kuzuhara (second round)

05.   Jack Pinnington Jones (second round, retired)

06.   Victor Lilov (quarterfinals)

07.   Viacheslav Bielinskyi (third round)

08.   Jérôme Kym (semifinals)

09.   Mark Lajal (third round)

10.   Sean Cuenin (second round)

11.   Sascha Gueymard Wayenburg (semifinals)

12.   Gonzalo Bueno (second round)

13.   Dali Blanch (second round)

14.   Alejandro Manzanera Pertusa (second round)

15.   Maks Kaśnikowski (third round)

16.   Alexander Bernard (third round)

Click on the seed number of a player to go to their draw section.

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

Finals

	Quarterfinals							Semifinals							Final
	1	Shang Juncheng	3	6	6
		Pierre Yves Bailly	6	3	2
								1	Shang Juncheng	6	6
								11	Sascha Gueymard Wayenburg	4	4
		Petr Nesterov	6	4	4
	11	Sascha Gueymard Wayenburg	0	6	6
															1	Shang Juncheng	2	66
															3	Daniel Rincón	6	78
	6	Victor Lilov	3	1
	3	Daniel Rincón	6	6
								3	Daniel Rincón	3	77	6
								8	Jérôme Kym	6	64	4
	8	Jérôme Kym	4	6	6
	2	Samir Banerjee	6	3	4

Top half

Section 1

	First round							Second round							Third round							Quarterfinals
								1	J Shang	77	6
	WC	Aidan Mayo	6	6				WC	A Mayo	65	3
	Q	Miguel Gomes	3	3											1	J Shang	77	6
		Daniel Mérida	77	6												D Mérida	65	4
		Aleksander Orlikowski	64	3					D Mérida	6	77
								13	D Blanch	3	62
																						1	J Shang	3	6	6
																							PY Bailly	6	3	2
								12	G Bueno	0	3
		Jack Anthrop	4	77	4				PY Bailly	6	6
		Pierre Yves Bailly	6	62	6											PY Bailly	6	6
	WC	Colton Smith	77	6											WC	C Smith	4	4
		Edas Butvilas	64	4				WC	C Smith	65	6	2
								5	J Pinnington Jones	77	4	0r

Section 2

	First round							Second round							Third round							Quarterfinals
								4	B Kuzuhara	3	6	3
	Q	Jakub Menšík	6	6				Q	J Menšík	6	4	6
		Måns Dahlberg	4	2											Q	J Menšík	63	4
		Petr Nesterov	6	64	6											P Nesterov	77	6
	Q	Philip Florig	1	77	3				P Nesterov	6	6
								14	A Manzanera Pertusa	4	4
																							P Nesterov	6	4	4
																						11	S Gueymard Wayenburg	0	6	6
								11	S Gueymard Wayenburg	77	3	6
	WC	Ryan Colby	7	4	4			WC	R Colby	63	6	3
		Álvano Guillén Meza	5	6	0r										11	S Gueymard Wayenburg	7	77
		Ozan Colak	65	6	69										7	V Bielinskyi	5	63
		Abedallah Shelbayh	77	3	711				A Shelbayh	5	4
								7	V Bielinskyi	7	6

Bottom half

Section 3

	First round							Second round							Third round							Quarterfinals
								6	V Lilov	77	4	6
	Q	Sebastian Dominko	4	6	3				P Sekulic	62	6	2
		Philip Sekulic	6	3	6										6	V Lilov	6	6
	Q	Christopher Li	6	4	65										9	M Lajal	2	2
	WC	Alexander Razeghi	4	6	77			WC	A Razeghi	2	6	3
								9	M Lajal	6	4	6
																						6	V Lilov	3	1
																						3	D Rincón	6	6
								16	A Bernard	6	77
		Max Westphal	6	6					M Westphal	3	65
		Peter Benjamín Privara	4	3											16	A Bernard	4	3
	WC	Aidan Kim	6	6											3	D Rincón	6	6
		Lui Maxted	2	4				WC	A Kim	64	5
								3	D Rincón	77	7

Section 4

	First round							Second round							Third round							Quarterfinals
								8	J Kym	77	7
		Ignacio Buse	7	6					I Buse	63	5
	WC	Michael Zheng	5	3											8	J Kym	6	3	77
		Adolfo Daniel Vallejo	6	7												AD Vallejo	3	6	62
	Q	Kyle Kang	4	5					AD Vallejo	6	3	6
								10	S Cuenin	3	6	3
																						8	J Kym	4	6	6
																						2	S Banerjee	6	3	4
								15	M Kaśnikowski	4	6	77
		Mili Poljičak	6	2	1				E Quinn	6	0	64
		Ethan Quinn	2	6	6										15	M Kaśnikowski	7	2	2
		Max Hans Rehberg	4	6	77										2	S Banerjee	5	6	6
		Leo Borg	6	3	64				MH Rehberg	0	4
								2	S Banerjee	6	6

Qualifying

Seeds

1. Kalin Ivanovski (first round)
2. Coleman Wong (qualifying competition)
3. Vilius Gaubas (qualifying competition)
4. Adam Jurajda (first round)
5. Matthew William Donald (qualifying competition)
6. Jakub Menšík (qualified)
7. Philip Florig (qualified)
8. German Samofalov (first round)
9. João Victor Couto Loureiro (qualifying competition)
10. Miguel Gomes (qualified)
11. Sebastian Dominko (qualified)
12. Elmer Møller (first round)

Qualifiers

1. Philip Florig
2. Kyle Kang
3. Miguel Gomes
4. Christopher Li
5. Sebastian Dominko
6. Jakub Menšík

Draw

First qualifier

	First round							Qualifying competition
	1	Kalin Ivanovski	7	3	[3]
	WC	Nicholas Heng	5	6	[10]
								WC	Nicholas Heng	3	3r
								7	Philip Florig	6	4
		Derrick Chen	2	2
	7	Philip Florig	6	6

Second qualifier

	First round							Qualifying competition
	2	Coleman Wong	7	7
	WC	Yu Tanaka	5	5
								2	Coleman Wong	1	6	[5]
								WC	Kyle Kang	6	3	[10]
	WC	Kyle Kang	7	4	[10]
	12	Elmer Møller	5	6	[6]

Third qualifier

	First round							Qualifying competition
	3	Vilius Gaubas	6	6
		Azuma Visaya	3	4
								3	Vilius Gaubas	63	6	[3]
								10	Miguel Gomes	77	3	[10]
		Orel Kimhi	5	5
	10	Miguel Gomes	7	7

Fourth qualifier

	First round							Qualifying competition
	4	Adam Jurajda	4	3
		Christopher Li	6	6
									Christopher Li	6	5	[10]
								9	João Victor Couto Loureiro	2	7	[7]
		Braden Shick	65	77	[3]
	9	João Victor Couto Loureiro	77	61	[10]

Fifth qualifier

	First round							Qualifying competition
	5	Matthew William Donald	6	65	[10]
	WC	Sebastian Gorzny	1	77	[8]
								5	Matthew William Donald	6	1	[8]
								11	Sebastian Dominko	4	6	[10]
		Ezequiel Monferrer	3	4
	11	Sebastian Dominko	6	6

Sixth qualifier

	First round							Qualifying competition
	6	Jakub Menšík	6	3	[10]
		Neo Niedner	1	6	[5]
								6	Jakub Menšík	6	710
									Benjamin Kittay	2	68
		Benjamin Kittay	6	2	[10]
	8	German Samofalov	4	6	[7]

External links

• Draw