# 2017 Badminton Asia Junior Championships – Boys' singles

The boys' singles tournament of the 2017 Asian Junior Badminton Championships was held from July 26 to 30. The defending champions of the last edition was Sun Feixiang from China. Leong Jun Hao of Malaysia emerged as the champion after beating Bai Yupeng of China in the final with the score 21-6, 20-22, 21-17.

## Men's singles
### Seeds

* Lakshya Sen (fourth round)
* Lee Chia-hao (fourth round)
* Kunlavut Vitidsarn (semifinals)
* Chen Chi-ting (semifinals)
* Dmitriy Panarin (second round)
* Leong Jun Hao (champion)
* Pacharaapol Nipornram (fourth round)
* Sim Fong Hau (fourth round)
* Chan Yin Chak (second round)
* Kim Moon-jun (third round)
* Saran Jamsri (third round)
* Chen Shiau-cheng (fourth round)
* Woo Seung-hoon (third round)
* Ruttanapak Oupthong (fourth round)
* Kartikey Gulshan Kumar (fourth round)
* Ikhsan Rumbay (quarterfinals)

### Draw
#### Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| | Lin Chun-yi | 18 | 21 | 15 | | | | | | | | | | |
| | Bai Yupeng | 21 | 18 | 21 | | | | | | | | | | |
| | Bai Yupeng | 21 | 18 | 21 | | Bai Yupeng | 21 | 21 | | | | | | |
| | | | | | 4 | Chen Chi-ting | 13 | 13 | | | | | | |
| 4 | Chen Chi-ting | 15 | 21 | 20 | 4 | Chen Chi-ting | 13 | 13 | | | | | | |
| 16 | Ikhsan Rumbay | 21 | 9 | 8$^r$ | | | | | | | | | | |
| 16 | Ikhsan Rumbay | 21 | 9 | 8$^r$ | | | | | | | Bai Yupeng | 6 | 22 | 17 |
| | | | | | | | | | | 6 | Leong Jun Hao | 21 | 20 | 21 |
| | Li Shifeng | 13 | 16 | | | | | | | | | | | | 6 | Leong Jun Hao | 21 | 20 | 21 |
| 3 | Kunlavut Vitidsarn | 21 | 21 | | | | | | | | | | | |
| 3 | Kunlavut Vitidsarn | 21 | 21 | | 3 | Kunlavut Vitidsarn | 21 | 14 | 21 | | | | | |
| | | | | | 6 | Leong Jun Hao | 19 | 21 | 23 | | | | | |
| 6 | Leong Jun Hao | 15 | 21 | 21 | 6 | Leong Jun Hao | 19 | 21 | 23 | | | | | |
| | Gu Junfeng | 21 | 16 | 13 | | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| | | | 1 | L Sen | 21 | 21 | | | | | | | | | | |
| | | | | J Tan | 9 | 9 | | | | | | | | | | |
| | | | | | | | | 1 | L Sen | 21 | 21 | | | | | |
| | | | | | | | | | S Gunatilleke | 11 | 9 | | | | | |
| | | | | Vu M P | 14 | 21 | 20 | | | | | | | | | |
| | | | | S Gunatilleke | 21 | 17 | 22 | | | | | | | | | |
| | | | | | | | | | | | | 1 | L Sen | 21 | 23 | 20 |
| | | | | | | | | | | | | | Lin C-y | 13 | 25 | 22 |
| | | | 11 | S Jamsri | 21 | 21 | | | | | | | | | | |
| | | | | Shin T-y | 19 | 18 | | | | | | | | | | |
| | | | | | | | | 11 | S Jamsri | 11 | 13 | | | | | |
| | | | | | | | | | Lin C-y | 21 | 21 | | | | | |
| | | | | Lam H H | 9 | 8 | | | | | | | | | | |
| S Riaz | 8 | 4 | | Lin C-y | 21 | 21 | | | | | | | | | | |
| Lin C-y | 21 | 21 | | | | | | | | | | | | | | |

#### Section 2

| First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Fourth round | Fourth round | Fourth round | Fourth round |
| | | | 8 | Sim F H | 21 | 21 | | | | | | | | | | |
| | | | | Aung M H | 16 | 11 | | | | | | | | | | |
| | | | | | | | | 8 | Sim F H | 21 | 21 | | | | | |
| | | | | | | | | | T Turakhonov | 3 | 6 | | | | | |
| | | | | S Enkhbat | w | / | o | | | | | | | | | |
| T Turakhonov | 21 | 21 | | T Turakhonov | | | | | | | | | | | | |
| M Talib | 15 | 13 | | | | | | | | | | | 8 | Sim F H | 18 | 11 |
| | | | | | | | | | | | | | | Bai YP | 21 | 21 |
| | | | 9 | Chan Y C | 22 | 21 | 10 | | | | | | | | | |
| | | | | Bai YP | 24 | 15 | 21 | | | | | | | | | |
| | | | | | | | | | Bai YP | 21 | 18 | 21 | | | | |
| | | | | | | | | | F Fauzi | 14 | 21 | 14 | | | | |
| | | | | F Fauzi | 21 | 21 | | | | | | | | | | |
| P Maharjan | 21 | 21 | | P Maharjan | 11 | 16 | | | | | | | | | | |
| D Saom | 11 | 6 | | | | | | | | | | | | | | |

#### Section 3

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Fourth round | Fourth round | Fourth round | Fourth round |
| | | | | 4 | Chen C-t | 20 | 21 | 21 | | | | | | | | |
| | | | | | Gao ZZ | 22 | 15 | 16 | | | | | | | | |
| | | | | | | | | | 4 | Chen C-t | 21 | 21 | | | | |
| | | | | | | | | | | Mak P N | 16 | 12 | | | | |
| | | | | | M Nabeel | 10 | 8 | | | | | | | | | |
| Nguyen X M | 19 | 21 | 19 | | Mak P N | 21 | 21 | | | | | | | | | |
| Mak P N | 21 | 16 | 21 | | | | | | | | | | 4 | Chen C-t | 21 | 21 |
| | | | | | | | | | | | | | | A A Yulianto | 12 | 15 |
| | | | | 10 | Kim M-j | 21 | 21 | | | | | | | | | |
| | | | | | Ao F L | 9 | 6 | | | | | | | | | |
| | | | | | | | | | 10 | Kim M-j | 19 | 19 | | | | |
| | | | | | | | | | | A A Yulianto | 21 | 21 | | | | |
| | | | | | A A Yulianto | 21 | 21 | | | | | | | | | |
| Kaung M H | 3 | 3 | | | Chia W J | 13 | 14 | | | | | | | | | |
| Chia W J | 21 | 21 | | | | | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Fourth round | Fourth round | Fourth round | Fourth round |
| | | | | 7 | P Nipornram | 6 | 21 | 21 | | | | | | | | |
| | | | | | A D Gupta | 21 | 5 | 10 | | | | | | | | |
| | | | | | | | | | 7 | P Nipornram | 21 | 21 | | | | |
| | | | | | | | | | | J Koh | 13 | 10 | | | | |
| | | | | | J Koh | 21 | 21 | | | | | | | | | |
| Heng M L | 19 | 14 | | | C Dias | 9 | 4 | | | | | | | | | |
| C Dias | 21 | 21 | | | | | | | | | | | 7 | P Nipornram | 13 | 18 |
| | | | | | | | | | | | | | 16 | I Rumbay | 21 | 21 |
| | | | | 16 | I Rumbay | 21 | 21 | | | | | | | | | |
| | | | | | A S Salvado | 8 | 13 | | | | | | | | | |
| | | | | | | | | | 16 | I Rumbay | 21 | 21 | | | | |
| | | | | | | | | | | I Yuldashev | 6 | 7 | | | | |
| | | | | | I Yuldashev | 21 | 21 | | | | | | | | | |
| S D Ali | 17 | 21 | 21 | | S D Ali | 11 | 15 | | | | | | | | | |
| A Hosseinkhani | 21 | 19 | 16 | | | | | | | | | | | | | |

### Bottom half
#### Section 5

| First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Fourth round | Fourth round | Fourth round | Fourth round |
| M R Diaz | 21 | 21 | | | | | | | | | | | | | |
| S Padiz Jr | 16 | 12 | | M R Diaz | 21 | 21 | | | | | | | | | |
| | | | | Park H-s | 15 | 17 | | | | | | | | | |
| | | | | | | | | | M R Diaz | 14 | 13 | | | | |
| | | | | | | | | 15 | K G Kumar | 21 | 21 | | | | |
| | | | | Sum S S | 4 | 5 | | | | | | | | | |
| | | | 15 | K G Kumar | 21 | 21 | | | | | | | | | |
| | | | | | | | | | | | | 15 | K G Kumar | 17 | 17 |
| Ko S H | 17 | 15 | | | | | | | | | | | Li SF | 21 | 21 |
| Li SF | 21 | 21 | | Li SF | 21 | 18 | 21 | | | | | | | | |
| | | | | D M Ng | 10 | 21 | 9 | | | | | | | | |
| | | | | | | | | | Li SF | 22 | 21 | | | | |
| | | | | | | | | | Ng T Y | 20 | 15 | | | | |
| | | | | Ng T Y | 21 | 21 | | | | | | | | | |
| | | | 5 | D Panarin | 14 | 14 | | | | | | | | | |

#### Section 6

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| P K Lingthen | 15 | 21 | 21 | | | | | | | | | | | | | |
| R M Z Haider | 21 | 15 | 17 | | P K Lingthen | 8 | 15 | | | | | | | | | |
| | | | | | R Sasindu | 21 | 21 | | | | | | | | | |
| | | | | | | | | | R Sasindu | 14 | 7 | | | | | |
| | | | | | | | | 12 | Chen S-c | 21 | 21 | | | | | |
| | | | | | N T A Kurniawan | 15 | 14 | | | | | | | | | |
| | | | | 12 | Chen S-c | 21 | 21 | | | | | | | | | |
| | | | | | | | | | | | | 12 | Chen S-c | 15 | 21 | 6 |
| Arkar P M | 21 | 21 | | | | | | | | | | 3 | K Vitidsarn | 21 | 7 | 21 |
| Y Alhumairi | 4 | 5 | | | Arkar P M | 14 | 19 | | | | | | | | | |
| | | | | | Nguyen H D | 21 | 21 | | | | | | | | | |
| | | | | | | | | | Nguyen H D | 11 | 13 | | | | | |
| | | | | | | | | 3 | K Vitidsarn | 21 | 21 | | | | | |
| | | | | | A Khadjaev | 10 | 7 | | | | | | | | | |
| | | | | 3 | K Vitidsarn | 21 | 21 | | | | | | | | | |

#### Section 7

| First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Fourth round | Fourth round | Fourth round | Fourth round |
| K Hussein | 19 | 21 | | | | | | | | | | | | | | |
| Oeng P L | 21 | 23 | | Oeng P L | 11 | 8 | | | | | | | | | | |
| | | | | Pui P F | 21 | 21 | | | | | | | | | | |
| | | | | | | | | | Pui P F | 8 | 11 | | | | | |
| | | | | | | | | 14 | R Oupthong | 21 | 21 | | | | | |
| | | | | A Jabbari | 7 | 12 | | | | | | | | | | |
| | | | 14 | R Oupthong | 21 | 21 | | | | | | | | | | |
| | | | | | | | | | | | | | 14 | R Oupthong | 16 | 14 |
| A B Khan | 7 | 13 | | | | | | | | | | | 6 | Leong J H | 21 | 21 |
| Le T L | 21 | 21 | | Le T L | 23 | 10 | 5 | | | | | | | | | |
| | | | | G P F Cupu | 21 | 21 | 21 | | | | | | | | | |
| | | | | | | | | | G P F Cupu | 21 | 18 | 8 | | | | |
| | | | | | | | | 6 | Leong J H | 11 | 21 | 21 | | | | |
| | | | | L R Zafra | 18 | 13 | | | | | | | | | | |
| | | | 6 | Leong J H | 21 | 21 | | | | | | | | | | |

#### Section 8

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| H Wong | 21 | 21 | 12 | | | | | | | | | | | | | |
| Chow H L | 17 | 23 | 21 | | Chow H L | 9 | 12 | | | | | | | | | |
| | | | | | Gu JF | 21 | 21 | | | | | | | | | |
| | | | | | | | | | Gu JF | 21 | 21 | | | | | |
| | | | | | | | | 13 | Woo S-h | 9 | 16 | | | | | |
| | | | | | J Dandu | 12 | 16 | | | | | | | | | |
| | | | | 13 | Woo S-h | 21 | 21 | | | | | | | | | |
| | | | | | | | | | | | | | Gu JF | 8 | 21 | 21 |
| R Maharjan | 21 | 21 | | | | | | | | | | 2 | Lee C-h | 21 | 4 | 13 |
| M Batsukh | 8 | 7 | | | R Maharjan | 13 | 15 | | | | | | | | | |
| | | | | | R Hendahewa | 21 | 21 | | | | | | | | | |
| | | | | | | | | | R Hendahewa | 9 | 7 | | | | | |
| | | | | | | | | 2 | Lee C-h | 21 | 21 | | | | | |
| | | | | | Hein S T T | 9 | 9 | | | | | | | | | |
| | | | | 2 | Lee C-h | 21 | 21 | | | | | | | | | |