2018 Badminton Asia Junior Championships – Boys' singles

The boys' singles tournament of the 2018 Badminton Asia Junior Championships was held from July 18 to 22.^[1] Leong Jun Hao from Malaysia clinched this title in the last edition.^[2] Thailand’s reigning World Junior Champion Kunlavut Vitidsarn leads the seedings this year.^[3]

	Quarterfinals							Semifinals							Final
	1	Kunlavut Vitidsarn	23	21
		Christian Adinata	21	8
								1	Kunlavut Vitidsarn	21	21
								3	Bai Yupeng	14	12
	3	Bai Yupeng	21	22
	7	Alberto Alvin Yulianto	15	20
															1	Kunlavut Vitidsarn	19	18
															6	Lakshya Sen	21	21
	15	Ng Tze Yong	14	19
	4	Ikhsan Rumbay	21	21
								4	Ikhsan Rumbay	7	14
								6	Lakshya Sen	21	21
	6	Lakshya Sen	21	21
	2	Li Shifeng	14	12

	First round							Second round							Third round							Fourth round
								1	K Vitidsarn	21	21
									Nguyễn Ả G H	9	8
															1	K Vitidsarn	21	21
																D Ng	16	12
									C Dias	14	12
									D Ng	21	21
																						1	K Vitidsarn	21	21
																						10	Karono	16	9
								10	Karono	21	16	21
									A F Sanjay	16	21	17
															10	Karono	21	14	28
																H Nakayama	18	21	26
									A Solaiman	6	8
									H Nakayama	21	21

	First round							Second round							Third round							Fourth round
								5	Chen S-c	21	21
									A Karami	7	14
															5	Chen S-c	21	18	19
																Chia W J	17	21	21
									J Gunawan	11	13
									Chia W J	21	21
																							Chia W J	14	18
																							C Adinata	21	21
								9	D Panarin	19	15
									Park H-s	21	21
																Park H-s	15	15
																C Adinata	21	21
									Liu L	19	20
		A Alothman	5	6					C Adinata	21	22
		C Adinata	21	21

	First round							Second round							Third round							Fourth round
								3	Bai YP	21	21
									L De Silva	8	13
															3	Bai YP	21	21
																M A H Lukman	6	6
									M A H Lukman	21	21
									T Gombodorj	11	6
																						3	Bai YP	19	21	21
																							S Piyawatcharavijit	21	14	12
								14	Yu S-p	21	21
									N Alghamdi	4	3
															14	Yu S-p	18	11
																S Piyawatcharavijit	21	21
									N Yap	17	13
									S Piyawatcharavijit	21	21

	First round							Second round							Third round							Fourth round
								7	A A Yulianto	21	21
									J Wang	7	16
															7	A A Yulianto	21	21
																Pui P F	15	8
									Kaung M H	6	5
									Pui P F	21	21
																						7	A A Yulianto	21	21
																						16	K George	19	19
								16	K George	24	21
									Lim C K	22	16
															16	K George	21	21	21
																Choi J-h	16	23	12
									Choi J-h	21	21
		T Kato	21	21					T Kato	13	17
		Nguyễn T T	9	15

	First round							Second round							Third round							Fourth round
		Kaung A	21	17	21
		M Alghamdi	16	21	10				Kaung A	5	3
									Ko S H	21	21
																Ko S H	18	14
															15	Ng T Y	21	21
									S Enkhbat	13	10
								15	Ng T Y	21	21
																						15	Ng T Y	21	21
																							P Rajawat	15	14
									V Fernando	8	4
									P Rajawat	21	21
																P Rajawat	21	13	23
																R Ichii	18	21	21
									R Ichii	21	21
								8	Su L-y	17	17

	First round							Second round							Third round							Fourth round
									Ao F L	14	12
									S S M S Ullah	21	21
																S S M S Ullah	12	7
															12	J Koh	21	21
									K Tajibullayev	7	8
								12	J Koh	21	21
																						12	J Koh	18	11
																						4	I Rumbay	21	21
									Lee H-j	14	17
									P Srimanta	21	21
																P Srimanta	12	12
															4	I Rumbay	21	21
									Cao YF	8	22
								4	I Rumbay	21	24

	First round							Second round							Third round							Fourth round
		S P Belawa	21	21
		Zwe Y N	4	6					S P Belawa	21	21
									Kok J H	15	14
																S P Belawa	19	21	17
															11	S Jamsri	21	19	21
									Mak P N	21	18	15
								11	S Jamsri	9	21	21
																						11	S Jamsri	15	16
																						6	L Sen	21	21
									G Singha	11	1
									R Hatano	21	21
																R Hatano	6	21	15
															6	L Sen	21	18	21
									Kim H-j	13	11
								6	L Sen	21	21

	First round							Second round							Third round							Fourth round
									A Alharthi	2	3
									Y Ramlie	21	21
																Y Ramlie	13	13
																Yang Y	21	21
									Yang Y	9	21	21
								13	Nguyễn H Đ	21	15	9
																							Yang Y	10	17
																						2	Li SF	21	21
									D Abdullayev	15	12
									T Ambegoda	21	21
																T Ambegoda	12	15
															2	Li SF	21	21
									Lee R H	8	5
								2	Li SF	21	21

• Main Draw