# 2011 Thailand Open Grand Prix Gold

The 2011 Thailand Open Grand Prix Gold was a badminton tournament which took place at the Chulalongkorn University Sport Complex in Bangkok, Thailand on 7–12 June 2011 and had a total purse of $120,000.

## Men's singles
### Seeds

* Chen Long (champion)
* Boonsak Ponsana (third round)
* Park Sung-hwan (semifinals)
* Chen Jin (semifinals)
* Marc Zwiebler (first round)
* Lee Hyun-il (final)
* Hu Yun (second round)
* Rajiv Ouseph (first round)
* Son Wan-ho (first round)
* Wang Zhengming (quarterfinals)
* Tommy Sugiarto (third round)
* Wong Wing Ki (first round)
* Brice Leverdez (third round)
* Parupalli Kashyap (quarterfinals)
* Dicky Palyama (first round)
* Wong Choong Hann (quarterfinals)

### Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Chen Long | 21 | 21 | | | | | | | | | | |
| 14 | Parupalli Kashyap | 18 | 5 | | | | | | | | | | |
| 14 | Parupalli Kashyap | 18 | 5 | | 1 | Chen Long | 21 | 21 | | | | | |
| | | | | | 3 | Park Sung-hwan | 15 | 13 | | | | | |
| 3 | Park Sung-hwan | 16 | 21 | 21 | 3 | Park Sung-hwan | 15 | 13 | | | | | |
| | Sourabh Verma | 21 | 16 | 11 | | | | | | | | | |
| | Sourabh Verma | 21 | 16 | 11 | | | | | | 1 | Chen Long | 21 | 21 |
| | | | | | | | | | | 6 | Lee Hyun-il | 8 | 19 |
| 16 | Wong Choong Hann | 9 | 7 | | | | | | | | | | | 6 | Lee Hyun-il | 8 | 19 |
| 4 | Chen Jin | 21 | 21 | | | | | | | | | | |
| 4 | Chen Jin | 21 | 21 | | 4 | Chen Jin | 21 | 18 | 20 | | | | |
| | | | | | 6 | Lee Hyun-il | 18 | 21 | 22 | | | | |
| 6 | Lee Hyun-il | 18 | 21 | 21 | 6 | Lee Hyun-il | 18 | 21 | 22 | | | | |
| 10 | Wang Zhengming | 21 | 9 | 9 | | | | | | | | | |

## Women's singles
### Seeds

* Saina Nehwal (quarterfinals)
* Jiang Yanjiao (final)
* Bae Yeon-ju (quarterfinals)
* Porntip Buranaprasertsuk (semifinals)
* Juliane Schenk (quarterfinals)
* Cheng Shao-chieh (semifinals)
* Li Xuerui (champion)
* Sung Ji-hyun (quarterfinals)

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 7 | Li Xuerui | 21 | 17 | 21 | | | | | |
| 4 | Porntip Buranaprasertsuk | 17 | 21 | 13 | | | | | |
| 4 | Porntip Buranaprasertsuk | 17 | 21 | 13 | 7 | Li Xuerui | 14 | 21 | 21 |
| | | | | | 2 | Jiang Yanjiao | 21 | 14 | 14 |
| 6 | Cheng Shao-chieh | 21 | 12 | 14 | 2 | Jiang Yanjiao | 21 | 14 | 14 |
| 2 | Jiang Yanjiao | 10 | 21 | 21 | | | | | |

## Men's doubles
### Seeds

* Jung Jae-sung / Lee Yong-dae (champion)
* Ko Sung-hyun / Yoo Yeon-seong (semifinals)
* Fang Chieh-min / Lee Sheng-mu (quarterfinals)
* Alvent Yulianto Chandra / Hendra Aprida Gunawan (final)
* Chai Biao / Guo Zhendong (quarterfinals)
* Cho Gun-woo / Kwon Yi-goo (first round)
* Ingo Kindervater / Johannes Schoettler (quarterfinals)
* Howard Bach / Tony Gunawan (semifinals)

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Jung Jae-sung Lee Yong-dae | 21 | 21 | | | | |
| 8 | Howard Bach Tony Gunawan | 18 | 11 | | | | |
| 8 | Howard Bach Tony Gunawan | 18 | 11 | 1 | Jung Jae-sung Lee Yong-dae | 24 | 21 |
| | | | | 4 | Alvent Yulianto Chandra Hendra Aprida Gunawan | 22 | 14 |
| 4 | Alvent Yulianto Chandra Hendra Aprida Gunawan | 21 | 21 | 4 | Alvent Yulianto Chandra Hendra Aprida Gunawan | 22 | 14 |
| 2 | Ko Sung-hyun Yoo Yeon-seong | 14 | 17 | | | | |

## Women's doubles
### Seeds

* Duanganong Aroonkesorn / Kunchala Voravichitchaikul (first round)
* Shinta Mulia Sari / Yao Lei (first round)
* Lotte Jonathans / Paulien van Dooremalen (first round)
* Sandra Marinello / Birgit Michels (second round)
* Tian Qing / Zhao Yunlei (champion)
* Ha Jung-eun / Kim Min-jung (second round)
* Cheng Shu / Bao Yixin (final)
* Jwala Gutta / Ashwini Ponnappa (first round)

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | Vivian Hoo Woon Khe Wei | 17 | 14 | | | | | |
| 7 | Cheng Shu Bao Yixin | 21 | 21 | | | | | |
| 7 | Cheng Shu Bao Yixin | 21 | 21 | | 7 | Cheng Shu Bao Yixin | 7 | 8 |
| | | | | | 5 | Tian Qing Zhao Yunlei | 21 | 21 |
| | Poon Lok Yan Tse Ying Suet | 23 | 12 | 15 | 5 | Tian Qing Zhao Yunlei | 21 | 21 |
| 5 | Tian Qing Zhao Yunlei | 21 | 21 | 21 | | | | |

## Mixed doubles
### Seeds

* Sudket Prapakamol / Saralee Thoungthongkam (quarterfinals)
* Songphon Anugritayawon / Kunchala Voravichitchaikul (quarterfinals)
* Michael Fuchs / Birgit Michels (second round)
* Lee Sheng-mu / Chien Yu-chin (champion)
* Xu Chen / Ma Jin (semifinals)
* Chan Peng Soon / Goh Liu Ying (withdrew)
* Lee Yong-dae / Ha Jung-eun (quarterfinals)
* Nova Widianto / Vita Marissa (final)

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 8 | Nova Widianto Vita Marissa | 21 | 20 | 21 | | | | |
| | Shin Baek-cheol Kim Min-jung | 17 | 22 | 18 | | | | |
| | Shin Baek-cheol Kim Min-jung | 17 | 22 | 18 | 8 | Nova Widianto Vita Marissa | 10 | 21 |
| | | | | | 4 | Lee Sheng-mu Chien Yu-chin | 21 | 23 |
| 4 | Lee Sheng-mu Chien Yu-chin | 17 | 21 | 21 | 4 | Lee Sheng-mu Chien Yu-chin | 21 | 23 |
| 5 | Xu Chen Ma Jin | 21 | 19 | 15 | | | | |