# 2012 BWF World Junior Championships – Mixed doubles

The Mixed doubles tournament of the 2012 BWF World Junior Championships was held from October 30 until November 3. Alfian Eko Prasetya and Gloria Emanuelle Widjaja were the defending champion.
Edi Subaktiar and Melati Daeva Oktavianti won the title after defeating the defending champion Alfian Eko Prasetya and his new partner Shella Devi Aulia 21–17, 21–13 in the final. It was the second straight years for Indonesia to make all-Indonesian final in the mixed doubles.

## Seeded

* Choi Sol-gyu / Chae Yoo-jung (quarter-final)
* Edi Subaktiar / Melati Daeva Oktavianti (champion)
* Liu Yuchen / Chen Qingchen (semi-final)
* Wang Yilu / Huang Yaqiong (semi-final)
* Kim Jung-ho / Kim Ji-won (fourth round)
* Kasper Antonsen / Line Kjaersfeldt (fourth round)
* Jung Jae-wook / Shin Seung-chan (quarter-final)
* Tan Wee Gieen / Chow Mei Kuan (fourth round)
* Mark Lamsfuß / Franziska Volkmann (second round)
* Robin Tabeling / Myke Halkema (fourth round)
* Tom Wolfenden / Holly Smith (second round)
* Alfian Eko Prasetya / Shella Devi Aulia (final)
* Putra Eka Rhoma / Ni Ketut Mahadewi Istirani (quarter-final)
* Lee Chun Hei / Yuen Sin Ying (quarter-final)
* Alexandr Zinchenko / Olga Morozova (fourth round)
* Jaromir Janacek / Lucie Cerna (third round)

## Draw
### Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Choi Sol-gyu Chae Yoo-jung | 17 | 13 | | | | | | | | | |
| 9/16 | Alfian Eko Prasetya Shella Devi Aulia | 21 | 21 | | | | | | | | | |
| 9/16 | Alfian Eko Prasetya Shella Devi Aulia | 21 | 21 | 9/16 | Alfian Eko Prasetya Shella Devi Aulia | 12 | 21 | 21 | | | | |
| | | | | 3/4 | Wang Yilu Huang Yaqiong | 21 | 19 | 12 | | | | |
| 3/4 | Wang Yilu Huang Yaqiong | 21 | 21 | 3/4 | Wang Yilu Huang Yaqiong | 21 | 19 | 12 | | | | |
| 9/16 | Lee Chun Hei Yuen Sin Ying | 14 | 15 | | | | | | | | | |
| 9/16 | Lee Chun Hei Yuen Sin Ying | 14 | 15 | | | | | | 9/16 | Alfian Eko Prasetya Shella Devi Aulia | 17 | 13 |
| | | | | | | | | | 2 | Edi Subaktiar Melati Daeva Oktavianti | 21 | 21 |
| 9/16 | Putra Eka Rhoma Ni Ketut Mahadewi Istirani | 21 | 14 | | | | | | | | | | 2 | Edi Subaktiar Melati Daeva Oktavianti | 21 | 21 |
| 3/4 | Liu Yuchen Chen Qingchen | 23 | 21 | | | | | | | | | |
| 3/4 | Liu Yuchen Chen Qingchen | 23 | 21 | 3/4 | Liu Yuchen Chen Qingchen | 21 | 18 | 11 | | | | |
| | | | | 2 | Edi Subaktiar Melati Daeva Oktavianti | 14 | 21 | 21 | | | | |
| 5/8 | Jung Jae-wook Shin Seung-chan | 14 | 19 | 2 | Edi Subaktiar Melati Daeva Oktavianti | 14 | 21 | 21 | | | | |
| 2 | Edi Subaktiar Melati Daeva Oktavianti | 21 | 21 | | | | | | | | | |

### Top Half
#### Section 1

| 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 |
| | | | | 1 | Choi S-g Chae Y-j | 21 | 26 | | | | | | | | | |
| | | | | | D Devadass Yap CW | 9 | 24 | | | | | | | | | |
| | | | | | | | | | 1 | Choi S-g Chae Y-j | 21 | 21 | | | | |
| | | | | | | | | | | K Matsui S Hayata | 12 | 13 | | | | |
| | | | | | K Matsui S Hayata | 21 | 21 | | | | | | | | | |
| R Ng Yeo JM | 21 | 21 | | | R Ng Yeo JM | 14 | 16 | | | | | | | | | |
| B Goonathileka S Illangakoon | 16 | 9 | | | | | | | | | | | 1 | Choi S-g Chae Y-j | 21 | 21 |
| | | | | | | | | | | | | | | J Korhonen J Nyström | 15 | 15 |
| | | | | 9/16 | M Lamsfuss F Volkmann | 21 | 21 | 17 | | | | | | | | |
| | | | | | J Korhonen J Nyström | 14 | 23 | 21 | | | | | | | | |
| | | | | | | | | | | J Korhonen J Nyström | 21 | 23 | | | | |
| A D'Souza C Tsai | 19 | 21 | 21 | | | | | | | A D'Souza C Tsai | 16 | 21 | | | | |
| G Sibayan K Salatan | 21 | 17 | 18 | | A D'Souza C Tsai | 21 | 21 | | | | | | | | | |
| C Chen V Kessler | 23 | 21 | | | C Chen V Kessler | 13 | 13 | | | | | | | | | |
| A Malan L de Wet | 21 | 17 | | | | | | | | | | | | | | |

#### Section 2

| First round | First round | First 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 |
| | | | 5/8 | K Antonsen L Kjaersfeldt | 21 | 21 | | | | | | | | | |
| | | | | S Garev G Stoeva | 17 | 9 | | | | | | | | | |
| | | | | | | | 5/8 | K Antonsen L Kjaersfeldt | 22 | 21 | | | | | |
| | | | | | | | | P Chew I Wang | 20 | 7 | | | | | |
| | | | | P Chew I Wang | 21 | 21 | | | | | | | | | |
| S van den Broeck F Vandenhoucke | 21 | 21 | | S van den Broeck F Vandenhoucke | 19 | 8 | | | | | | | | | |
| A Savatyugin M Pakina | 14 | 10 | | | | | | | | | | 5/8 | K Antonsen L Kjaersfeldt | 12 | 18 |
| | | | | | | | | | | | | 9/16 | A Prasetya S Aulia | 21 | 21 |
| | | | 9/16 | A Prasetya S Aulia | 21 | 21 | | | | | | | | | |
| | | | | P Bowornwatanuwong L Narissapat | 17 | 14 | | | | | | | | | |
| | | | | | | | 9/16 | A Prasetya S Aulia | 21 | 11 | 22 | | | | |
| M Svetnicka M Svetnickova | 13 | 15 | | | | | | Pei TY Huang DP | 18 | 21 | 20 | | | | |
| Hsueh A-t Shih Y-c | 21 | 21 | | Hsueh A-t Shih Y-c | 10 | 8 | | | | | | | | | |
| Pham HN Pham NT | 12 | 12 | | Pei TY Huang DP | 21 | 21 | | | | | | | | | |
| Pei TY Huang DP | 21 | 21 | | | | | | | | | | | | | |

#### Section 3

| 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 |
| | | | | 3/4 | Wang YL Huang YQ | 21 | 21 | | | | | | | | |
| | | | | | J Magee R Darragh | 3 | 11 | | | | | | | | |
| | | | | | | | | 3/4 | Wang YL Huang YQ | 21 | 21 | | | | |
| | | | | | | | | | R Muns M Sibbald | 13 | 7 | | | | |
| | | | | | T Co A Leonardo | 16 | 15 | | | | | | | | |
| R Muns M Sibbald | 21 | 21 | | | R Muns M Sibbald | 21 | 21 | | | | | | | | |
| B Appakhodjaev V Mushtakova | 9 | 8 | | | | | | | | | | 3/4 | Wang YL Huang YQ | 21 | 21 |
| | | | | | | | | | | | | | K Sukamuljo M Giovani | 15 | 8 |
| | | | | 9/16 | T Wolfenden H Smith | 18 | 18 | | | | | | | | |
| | | | | | Wang C-l Chen S-y | 21 | 21 | | | | | | | | |
| | | | | | | | | | Wang C-l Chen S-y | 11 | 16 | | | | |
| M Byerly L Kaepplein | 21 | 13 | 20 | | | | | | K Sukamuljo M Giovani | 21 | 21 | | | | |
| D Yao T Wang | 16 | 21 | 22 | | D Yao T Wang | 20 | 13 | | | | | | | | |
| K Sukamuljo M Giovani | 21 | 21 | | | K Sukamuljo M Giovani | 22 | 21 | | | | | | | | |
| V Kukulage Y Dayarathne | 10 | 13 | | | | | | | | | | | | | |

#### 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 |
| | | | | 5/8 | Kim J-h Kim J-w | 18 | 21 | 21 | | | | | | | | |
| | | | | | H Thandarang M Jakkampudi | 21 | 15 | 17 | | | | | | | | |
| | | | | | | | | | 5/8 | Kim J-h Kim J-w | 21 | 21 | | | | |
| E Sesalan O Ozer | 11 | 19 | | | | | | | | B Kersaudy A Tran | 14 | 16 | | | | |
| T Hee E Chua | 21 | 21 | | | T Hee E Chua | 12 | 13 | | | | | | | | | |
| B Kersaudy A Tran | 21 | 21 | | | B Kersaudy A Tran | 21 | 21 | | | | | | | | | |
| A Mendrek I Zychova | 9 | 13 | | | | | | | | | | | 5/8 | Kim J-h Kim J-w | 11 | 19 |
| | | | | | | | | | | | | | 9/16 | Lee CH Yuen SY | 21 | 21 |
| | | | | 9/16 | Lee CH Yuen SY | 21 | 21 | | | | | | | | | |
| | | | | | Chua KW J Choong | 6 | 19 | | | | | | | | | |
| | | | | | | | | | 9/16 | Lee CH Yuen SY | 21 | 21 | | | | |
| Y Kobayashi A Sakuramoto | 21 | 18 | 21 | | | | | | | Y Kobayashi A Sakuramoto | 17 | 15 | | | | |
| G Martynenko E Kut | 8 | 21 | 12 | | Y Kobayashi A Sakuramoto | 21 | 21 | | | | | | | | | |
| A Selladurai J Guan | 12 | 16 | | | N Marcoen S van Wel | 6 | 16 | | | | | | | | | |
| N Marcoen S van Wel | 21 | 21 | | | | | | | | | | | | | | |

### Bottom Half
#### Section 5

| 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 |
| Wu H-l Chen T-y | 21 | 21 | | | | | | | | | | | | | | |
| Chang TC Tsang WC | 17 | 14 | | | Wu H-l Chen T-y | 21 | 21 | | | | | | | | | |
| C Coetzer A Schoonees | 17 | 15 | | | S Koca E Yazgan | 18 | 13 | | | | | | | | | |
| S Koca E Yazgan | 21 | 21 | | | | | | | Wu H-l Chen T-y | 14 | 13 | | | | | |
| | | | | | | | | 9/16 | P Rhoma N Istirani | 21 | 21 | | | | | |
| | | | | | N Osborne J Wu | 12 | 9 | | | | | | | | | |
| | | | | 9/16 | P Rhoma N Istirani | 21 | 21 | | | | | | | | | |
| | | | | | | | | | | | | 9/16 | P Rhoma N Istirani | 21 | 19 | 21 |
| Kim J-h Lee S-h | 21 | 15 | 21 | | | | | | | | | 5/8 | Tan WG Chow MK | 16 | 21 | 9 |
| F Roth J Karnott | 14 | 21 | 17 | | Kim J-h Lee S-h | 21 | 22 | | | | | | | | | |
| T Inoue A Yamaguchi | 21 | 21 | | | T Inoue A Yamaguchi | 11 | 20 | | | | | | | | | |
| A Bakhshullaev D Ahmedova | 6 | 3 | | | | | | | Kim J-h Lee S-h | 16 | 16 | | | | | |
| | | | | | | | | 5/8 | Tan WG Chow MK | 21 | 21 | | | | | |
| | | | | | J Maio S Guerin | 18 | 18 | | | | | | | | | |
| | | | | 5/8 | Tan WG Chow MK | 21 | 21 | | | | | | | | | |

#### 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 | Third round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| S Ravuri M Kukkapalli | 11 | 12 | | | | | | | | | | | | | | | |
| J Dolan A Stephenson | 21 | 21 | | | J Dolan A Stephenson | 21 | 21 | | | | | | | | | | |
| S Parsons J Moore | 21 | 19 | 17 | | I Heino M Lindholm | 19 | 14 | | | | | | | | | | |
| I Heino M Lindholm | 18 | 21 | 21 | | | | | | J Dolan A Stephenson | 12 | 13 | | | | | | |
| | | | | | | | | 9/16 | R Tabeling M Halkema | 21 | 21 | | | | | | |
| | | | | | Pham CC Nguyen TL | 14 | 14 | | | | | | | | | | |
| | | | | 9/16 | R Tabeling M Halkema | 21 | 21 | | | | | | | | | | |
| | | | | | | | | | | | | | 9/16 | R Tabeling M Halkema | 14 | 22 | 13 |
| W Cheung C Chen | 10 | 9 | | | | | | | | | | | 3/4 | Liu YC Chen QC | 21 | 20 | 21 |
| D Puavaranukroh P Supajirakul | 21 | 21 | | | D Puavaranukroh P Supajirakul | 21 | 21 | | | | | | | | | | |
| | | | | | D Delchev M Ivanova | 12 | 16 | | | | | | | | | | |
| | | | | | | | | | D Puavaranukroh P Supajirakul | 21 | 19 | 8 | | | | | |
| | | | | | | | | 3/4 | Liu YC Chen QC | 15 | 21 | 21 | | | | | |
| | | | | | A Morada M Caculitan | 6 | 11 | | | | | | | | | | |
| | | | | 3/4 | Liu YC Chen QC | 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 |
| A Lane C Birch | 21 | 21 | | | | | | | | | | | | | | |
| A Shekhtman L Wen | 10 | 8 | | A Lane C Birch | 17 | 15 | | | | | | | | | | |
| A Zinukhov V Gushcha | wo | | | M Caljouw A Chen | 21 | 21 | | | | | | | | | | |
| M Caljouw A Chen | | | | | | | | | M Caljouw A Chen | 13 | 22 | | | | | |
| | | | | | | | | 9/16 | A Zinchenko O Morozova | 21 | 24 | | | | | |
| | | | | M Put I Lanckriet | 14 | 13 | | | | | | | | | | |
| | | | 9/16 | A Zinchenko O Morozova | 21 | 21 | | | | | | | | | | |
| | | | | | | | | | | | | | 9/16 | A Zinchenko O Morozova | 11 | 16 |
| Do TD Le TH | 21 | 21 | | | | | | | | | | | 5/8 | Jung J-w Shin S-c | 21 | 21 |
| S Angodavidanalage K Waduthantri | 9 | 6 | | Do TD Le TH | 21 | 19 | 21 | | | | | | | | | |
| | | | | D Philip E Khoo | 19 | 21 | 12 | | | | | | | | | |
| | | | | | | | | | Do TD Le TH | 12 | 22 | 14 | | | | |
| | | | | | | | | 5/8 | Jung J-w Shin S-c | 21 | 20 | 21 | | | | |
| | | | | S Serasinghe G Somerville | 10 | 16 | | | | | | | | | | |
| | | | 5/8 | Jung J-w Shin S-c | 21 | 21 | | | | | | | | | | |

#### Section 8

| 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 |
| Tsai C-y Chang C-h | 21 | 21 | | | | | | | | | | | | | |
| R Naidoo D Botha | 17 | 7 | | Tsai C-y Chang C-h | 18 | 21 | 11 | | | | | | | | |
| E Ceylan N Yiğit | 13 | 13 | | Tang CM Ng WY | 21 | 18 | 21 | | | | | | | | |
| Tang CM Ng WY | 21 | 21 | | | | | | | Tang CM Ng WY | 21 | 21 | | | | |
| | | | | | | | | 9/16 | J Janacek L Cerna | 18 | 16 | | | | |
| | | | | K Koljonen A Paavola | wo | | | | | | | | | | |
| | | | 9/16 | J Janacek L Cerna | | | | | | | | | | | |
| | | | | | | | | | | | | | Tang CM Ng WY | 14 | 19 |
| V Shishkov M Mitsova | 12 | 18 | | | | | | | | | | 2 | E Subaktiar M Oktavianti | 21 | 21 |
| M Ishak Chong FJ | 21 | 21 | | M Ishak Chong FJ | 21 | 21 | | | | | | | | | |
| | | | | G Raju P Ram | 18 | 15 | | | | | | | | | |
| | | | | | | | | | M Ishak Chong FJ | 13 | 9 | | | | |
| | | | | | | | | 2 | E Subaktiar M Oktavianti | 21 | 21 | | | | |
| | | | | K Miura A Watanabe | 21 | 18 | | | | | | | | | |
| | | | 2 | E Subaktiar M Oktavianti | 23 | 21 | | | | | | | | | |