China
23.02.89, 36 years
11.949 $
23.02.89, 36 years
11.949 $
Country
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Si-Si Qiu vs. Zi-Jun Yang - H2H matches
| 28.07.08 | 1st round | Si-Si Qiu | Zi-Jun Yang | 6-3, 6-73, 6-2 | match details |  Surakarta | Hard |
Si-Si Qiu form & Zi-Jun Yang form
Si-Si Qiu - last matches
 Guangzhou - Hard | ||||
| 13.09.09 q 2 | vs. Ling Zhang | 7-5, 3-6, 1-6 |  | match details |
| 12.09.09 q 1 | vs. Shi-Tong Shao | 7-5, 6-3 |  | match details |
| Qianshan - Hard | ||||
| 24.08.09 1st round | vs. Xin Wen | 1-4, - Si-Si Qiu - retired | | match details |
| Quanzhou - Hard | ||||
| 10.08.09 1st round | vs. Sheng-Nan Sun | 2-6, 6-4, 6-4 | | match details |
| 10.08.09 1/4 | vs. Chun-Mei Ji | 2-6, 0-5, - Si-Si Qiu - retired | | match details |
| 10.08.09 2nd round | vs. I-Hsuan Hwang | 6-1, 6-4 | | match details |
| Shenzhen - Hard | ||||
| 06.07.09 1st round | vs. Saisai Zheng | 3-6, 4-6 | | match details |
| Qianshan - Hard | ||||
| 22.06.09 2nd round | vs. Xinyun Han | 4-6, 1-6 | | match details |
| 22.06.09 1st round | vs. Di Zhao | 6-1, 6-3 | | match details |
| Guangzhou - Hard | ||||
| 16.02.09 2nd round | vs. Sung-Hee Han | 3-6, 4-6 | | match details |
| 16.02.09 1st round | vs. Wan-Ting Liu | 6-3, 6-2 | | match details |
| Jiangmen - Hard | ||||
| 09.02.09 2nd round | vs. Shuai Zhang | 1-6, 2-6 | | match details |
| 09.02.09 1st round | vs. Ai Yamamoto | 4-6, 6-2, 6-3 | | match details |
 Manila - Clay | ||||
| 17.11.08 1st round | vs. Mi Yoo | 6-73, 6-4, 2-6 | | match details |
| Manila - Hard | ||||
| 10.11.08 1/4 | vs. Yoon-Young Jeong | 6-4, 6-75, - Si-Si Qiu - retired | | match details |
| 10.11.08 1st round | vs. Michelle Pang | 6-4, 6-1 | | match details |
| 10.11.08 2nd round | vs. Cassandra Barr | 6-3, 6-2 | | match details |
| Guangzhou - Hard | ||||
| 13.09.08 q 1 | vs. Qiang Wang | 6-4, 6-77, 3-6 | | match details |
| Jakarta - Hard | ||||
| 04.08.08 1st round | vs. Ting-Fei Juan | 6-1, 6-3 | | match details |
| 04.08.08 2nd round | vs. Chun-Yan He | 2-6, 2-6 | | match details |
| Surakarta - Hard | ||||
| 28.07.08 1/4 | vs. Chun-Yan He | 6-2, 6-2 | | match details |
| 28.07.08 1st round | vs. Zi-Jun Yang | 6-3, 6-73, 6-2 | | match details |
| 28.07.08 1/2 | vs. Jin-Hee Kim | 1-6, 6-4, 1-6 | | match details |
| 28.07.08 2nd round | vs. Trang Huynh Phuong Dai | 6-2, 6-2 | | match details |
| Qian Shan - Hard | ||||
| 23.06.08 1st round | vs. Isha Lakhani | 6-4, 6-3 | | match details |
| 23.06.08 2nd round | vs. Pemra Ozgen | 1-2, - Si-Si Qiu - retired | | match details |
| Manila - Clay | ||||
| 19.11.07 1st round | vs. Varanya Vijuksanaboon | 4-6, 4-6 | | match details |
| Manila - Hard | ||||
| 12.11.07 1st round | vs. Czarina-Mae Arevalo | 6-4, 6-2 | | match details |
| 12.11.07 1/4 | vs. Nicole Riner | 3-6, 1-6 | | match details |
| 12.11.07 2nd round | vs. Ayu-Fani Damayanti | 6-2, 7-5 | | match details |
Zi-Jun Yang - last matches
 Tsukuba - Hard | ||||
| 30.08.10 1st round | vs. Shiho Akita | 4-6, 7-5, 3-6 | | match details |
| Saitama - Hard | ||||
| 23.08.10 1st round | vs. Akari Inoue | 2-6, 3-6 | | match details |
| Balikpapan - Hard | ||||
| 02.08.10 1st round | vs. Sandy Gumulya | 2-6, 3-6 | | match details |
 Hatyai - Hard | ||||
| 12.07.10 1st round | vs. Nudnida Luangnam | 1-6, 2-6 | | match details |
| Pattaya - Hard | ||||
| 05.07.10 1st round | vs. Jessy Rompies | 4-6, 4-6 | | match details |
| Tarakan - Hard | ||||
| 03.05.10 1st round | vs. Sung-Hee Han | 1-6, 3-6 | | match details |
 Gimcheon - Hard | ||||
| 26.04.10 1st round | vs. Noppawan Lertcheewakarn | 0-6, 2-6 | | match details |
| Ningbo - Hard | ||||
| 05.04.10 1st round | vs. Yuka Mori | 6-1, 6-3 | | match details |
| 05.04.10 2nd round | vs. Lin Zhu | 3-6, 3-6 | | match details |
| Nanjing - Hard | ||||
| 29.03.10 1st round | vs. Yang Pang | 6-2, 6-4 | | match details |
| 29.03.10 2nd round | vs. Kai-Lin Zhang | 5-7, 5-7 | | match details |
 Fed Cup - Hard | ||||
| 05.02.10 Rubber 1 | vs. Bermet Duvanaeva | 6-1, 5-7, 6-1 | | match details |
| 04.02.10 Rubber 1 | vs. Michelle Pang | 4-6, 6-0, 6-1 | | match details |
| 03.02.10 Rubber 1 | vs. Kim Sadi | 6-0, 6-1 | | match details |
 Esperance - Hard | ||||
| 16.11.09 1st round | vs. Lisa Sabino | 7-64, 6-4 | | match details |
| 16.11.09 2nd round | vs. Olivia Rogowska | 3-6, 0-6 | | match details |
| Guangzhou - Hard | ||||
| 12.09.09 q 1 | vs. Ahsha Rolle | 4-6, 4-6 | | match details |
| Nonthaburi - Hard | ||||
| 31.08.09 1st round | vs. Kobkanok Upapong | 6-4, 6-2 | | match details |
| 31.08.09 1/4 | vs. Lavinia Tananta | 6-1, 2-6, 2-6 | | match details |
| 31.08.09 2nd round | vs. Peangtarn Plipuech | 6-2, 7-62 | | match details |
| Nonthaburi - Hard | ||||
| 24.08.09 1st round | vs. Angelina Gabueva | 4-6, 5-7 | | match details |
| Shenzhen - Hard | ||||
| 06.07.09 1/2 | vs. Sabina Sharipova | 3-6, 3-6 | | match details |
| 06.07.09 1/4 | vs. Ling Zhang | 6-3, 5-7, 6-4 | | match details |
| 06.07.09 1st round | vs. Yi Yang | 6-0, 5-7, 6-2 | | match details |
| 06.07.09 2nd round | vs. Lu Guo | 6-4, 6-4 | | match details |
| Xiamen - Hard | ||||
| 29.06.09 1st round | vs. Kai-Lin Zhang | 2-6, 7-5, 6-1 | | match details |
| 29.06.09 2nd round | vs. Shuai Zhang | 6-4, 6-75, 1-6 | | match details |
| Pattaya - Hard | ||||
| 15.06.09 1/4 | vs. Nicha Lertpitaksinchai | 0-6, 1-6 | | match details |
| 15.06.09 1st round | vs. Sophia Mulsap | 4-6, 6-4, 6-2 | | match details |
| 15.06.09 2nd round | vs. Ting-Fei Juan | 6-2, 6-4 | | match details |
