# 2011 Vietnam Open Grand Prix

The 2011 Vietnam Open Grand Prix (officially known as the Yonex-Sunrise Vietnam Grand Prix Open 2011 for sponsorship reasons) was a badminton tournament which took place at Phan Dinh Phung Stadium in Ho Chi Minh City, Vietnam, from 22 to 28 August and had a total purse of $50,000.

## Tournament

The 2011 Vietnam Open Grand Prix was the ninth Grand Prix's badminton tournament of the 2011 BWF Grand Prix Gold and Grand Prix and also part of the Vietnam Open championships which have been held since 1996. This tournament was organized by the Vietnam Badminton Federation, with the local organizer committee Ho Chi Minh City Badminton Association, and sanctioned by the Badminton World Federation.
This tournament attracted more than 300 players from 23 countries and territories to compete in 5 events: men's singles, women's singles, men's doubles, women's doubles and mixed doubles.

### Venue

This international tournament was held at the Phan Dinh Phung Stadium in District 1, Ho Chi Minh City, Vietnam.

### Point distribution

Below is the point distribution for each phase of the tournament based on the BWF points system for the BWF Grand Prix event.
| Winner | Runner-up | 3/4 | 5/8 | 9/16 | 17/32 | 33/64 | 65/128 | 129/256 | 257/512 |
| 5,500 | 4,680 | 3,850 | 3,030 | 2,110 | 1,290 | 510 | 240 | 100 | 45 |

### Prize money

The total prize money was US$50,000. Distribution of prize money was in accordance with BWF regulations.
| Event | Winner | Finals | Semi-finals | Quarter-finals | Last 16 |
| Singles | $3,750 | $1,900 | $725 | $300 | $175 |
| Doubles | $3,950 | $1,900 | $700 | $362.5 | $187.5 |

## Men's singles
### Seeds

* Nguyễn Tiến Minh (champion)
* Sho Sasaki (final)
* Tommy Sugiarto (withdrew)
* Alamsyah Yunus (quarter-finals)
* Ajay Jayaram (semi-finals)
* Chan Yan Kit (first round)
* Hsu Jen-hao (third round)
* Muhammad Hafiz Hashim (quarter-finals)
* Derek Wong (first round)
* Ashton Chen (third round)
* Liew Daren (quarter-finals)
* R. M. V. Gurusaidutt (semi-finals)
* Vladimir Malkov (second round)
* Keigo Sonoda (third round)
* Sony Dwi Kuncoro (third round)
* Pakkawat Vilailak (second round)

### Finals

| Semi-finals | Semi-finals | Semi-finals | Semi-finals | Semi-finals | Final | Final | Final | Final |
| 1 | Nguyễn Tiến Minh | 21 | 21 | | | | | |
| 12 | R. M. V. Gurusaidutt | 5 | 9 | | | | | |
| 12 | R. M. V. Gurusaidutt | 5 | 9 | | 1 | Nguyễn Tiến Minh | 21 | 21 |
| | | | | | 2 | Sho Sasaki | 13 | 17 |
| 5 | Ajay Jayaram | 21 | 14 | 16 | 2 | Sho Sasaki | 13 | 17 |
| 2 | Sho Sasaki | 12 | 21 | 21 | | | | |

## Women's singles
### Seeds

* Ratchanok Intanon (withdrew)
* Sayaka Sato (second round)
* Tai Tzu-ying (semi-finals)
* Ai Goto (first round)
* Gu Juan (first round)
* Aprilia Yuswandari (second round)
* Linda Zetchiri (first round)
* Maria Febe Kusumastuti (first round)

### Finals

| Semi-finals | Semi-finals | Semi-finals | Semi-finals | Final | Final | Final | Final |
| PFQ | Hwang Hye-youn | 19 | 15 | | | | |
| | Fu Mingtian | 21 | 21 | | | | |
| | Fu Mingtian | 21 | 21 | Fu Mingtian | 21 | 16 | 21 |
| | | | | Kaori Imabeppu | 18 | 21 | 8 |
| 3 | Tai Tzu-ying | 15 | 18 | Kaori Imabeppu | 18 | 21 | 8 |
| | Kaori Imabeppu | 21 | 21 | | | | |

## Men's doubles
### Seeds

* Hirokatsu Hashimoto / Noriyasu Hirata (quarter-finals)
* Naoki Kawamae / Shōji Satō (quarter-finals)
* Chen Hung-ling / Lin Yu-lang (quarter-finals)
* Gan Teik Chai / Tan Bin Shen (second round)
* Angga Pratama / Rian Agung Saputro (champions)
* Goh Wei Shem / Lim Khim Wah (semi-finals)
* Mak Hee Chun / Ong Soon Hock (semi-finals)
* Yohanes Rendy Sugiarto / Afiat Yuris Wirawan (quarter-finals)

### Finals

| Semi-finals | Semi-finals | Semi-finals | Semi-finals | Semi-finals | Final | Final | Final | Final | Final |
| 7 | Mak Hee Chun Ong Soon Hock | 21 | 19 | 12 | | | | | |
| | Danny Bawa Chrisnanta Chayut Triyachart | 16 | 21 | 21 | | | | | |
| | Danny Bawa Chrisnanta Chayut Triyachart | 16 | 21 | 21 | | Danny Bawa Chrisnanta Chayut Triyachart | 12 | 21 | 19 |
| | | | | | 5 | Angga Pratama Rian Agung Saputro | 21 | 16 | 21 |
| 6 | Goh Wei Shem Lim Khim Wah | 21 | 10 | 20 | 5 | Angga Pratama Rian Agung Saputro | 21 | 16 | 21 |
| 5 | Angga Pratama Rian Agung Saputro | 8 | 21 | 22 | | | | | |

## Women's doubles
### Seeds

* Lotte Jonathans / Paulien van Dooremalen (second round)
* Shinta Mulia Sari / Yao Lei (final)
* Iris Wang / Rena Wang (second round)
* Leanne Choo / Renuga Veeran (first round)
* Anneke Feinya Agustin / Nitya Krishinda Maheswari (champions)
* Ng Hui Ern / Ng Hui Lin (first round)
* Chiang Kai-hsin / Tsai Pei-ling (semi-finals)
* Suci Rizky Andini / Della Destiara Haris (withdrew)

### Finals

| Semi-finals | Semi-finals | Semi-finals | Semi-finals | Final | Final | Final | Final |
| 5 | Anneke Feinya Agustin Nitya Krishinda Maheswari | 21 | 21 | | | | |
| 7 | Chiang Kai-hsin Tsai Pei-ling | 11 | 7 | | | | |
| 7 | Chiang Kai-hsin Tsai Pei-ling | 11 | 7 | 5 | Anneke Feinya Agustin Nitya Krishinda Maheswari | 23 | 26 |
| | | | | 2 | Shinta Mulia Sari Yao Lei | 21 | 24 |
| | Choi A-reum Yoo Hyun-young | 20 | 17 | 2 | Shinta Mulia Sari Yao Lei | 21 | 24 |
| 2 | Shinta Mulia Sari Yao Lei | 22 | 21 | | | | |

## Mixed doubles
### Seeds

* Danny Bawa Chrisnanta / Vanessa Neo (semi-finals)
* Chayut Triyachart / Yao Lei (second round)
* Vitalij Durkin / Nina Vislova (champions)
* Arun Vishnu / Aparna Balan (quarter-finals)
* Muhammad Rizky Delynugraha / Richi Puspita Dili (second round)
* Leung Chun Yiu / Ng Ka Shun (first round)
* Irfan Fadhilah / Weni Anggraini (quarter-finals)
* Tan Aik Quan / Lai Pei Jing (semi-finals)

### Finals

| Semi-finals | Semi-finals | Semi-finals | Semi-finals | Final | Final | Final | Final |
| 1 | Danny Bawa Chrisnanta Vanessa Neo | 14 | 17 | | | | |
| 3 | Vitalij Durkin Nina Vislova | 21 | 21 | | | | |
| 3 | Vitalij Durkin Nina Vislova | 21 | 21 | 3 | Vitalij Durkin Nina Vislova | 21 | 21 |
| | | | | | Chung Eui-seok Yoo Hyun-young | 16 | 13 |
| | Chung Eui-seok Yoo Hyun-young | 21 | 21 | | Chung Eui-seok Yoo Hyun-young | 16 | 13 |
| 8 | Tan Aik Quan Lai Pei Jing | 14 | 18 | | | | |