Name: Ai Koga
Country: Japan
Birthdate: 03.10.91, 33 years
WTA ranking: 843
TOP ranking's position: 782 (03.12.12, 2100 points)
Points: 17
Matches total: 91
Win: 43
%: 47.25 %
Country: Japan
Birthdate: 03.10.91, 33 years
WTA ranking: 843
TOP ranking's position: 782 (03.12.12, 2100 points)
Points: 17
Matches total: 91
Win: 43
%: 47.25 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2012 | 21/16 | 15/11 | 0/0 | 1/1 | 1/1 | 4/3 | 0/0 |
| 2011 | 15/19 | 10/12 | 0/0 | 0/0 | 4/6 | 1/1 | 0/0 |
| 2010 | 3/6 | 0/2 | 0/0 | 2/1 | 1/3 | 0/0 | 0/0 |
| 2009 | 0/4 | 0/2 | 0/0 | 0/0 | 0/2 | 0/0 | 0/0 |
| 2008 | 4/3 | 2/1 | 0/0 | 0/0 | 2/2 | 0/0 | 0/0 |
| TOTAL | 43/48 | 27/28 | 0/0 | 3/2 | 8/14 | 5/4 | 0/0 |
| perc. % | 47.25 % | 49.09 % | 0 % | 60 % | 36.36 % | 55.56 % | 0 % |
Ai Koga / scheduled / last
| no matches found |
Ai Koga form / year 2011 / surface: Hard
Ai Koga / year 2011 / surface: Hard
| 12.12.11 | q 1 | Ai Koga | Prathana Prathap | 6-0, 6-0 |  | match details |  Pune | Hard |
| 12.12.11 | qual. | Kyra Shroff | Ai Koga | 6-2, 6-71, 6-0 |  | match details | ||
| 12.12.11 | 1st round | Anja Prislan | Ai Koga | 6-3, 6-3 | | match details | ||
| 12.12.11 | q 2 | Ai Koga | Julia Moriarty | 4-6, 7-64, 6-1 | | match details | ||
| 05.12.11 | q 1 | Sri Peddi Reddy | Ai Koga | 7-5, 6-0 | | match details | Solapur | Hard |
| 03.10.11 | qual. | Rushmi Chakravarthi | Ai Koga | 6-4, 6-2 | | match details |  Palembang | Hard |
| 03.10.11 | q 1 | Ai Koga | Puspa Ratih Tri Oktavira | 6-1, 6-1 | | match details | ||
| 26.09.11 | qual. | Min Liu | Ai Koga | 2-6, 6-3, 6-4 | | match details | Jakarta | Hard |
| 26.09.11 | q 1 | Ai Koga | Dede-Tari Kusrini | 6-1, 6-2 | | match details | ||
| 22.08.11 | qual. | Ai Koga | Maiko Yamashita | 6-1, 6-0 | | match details |  Saitama | Hard |
| 22.08.11 | q 1 | Ai Koga | Chihiro Ueki | 6-4, 6-4 | | match details | ||
| 22.08.11 | 1st round | Miyabi Inoue | Ai Koga | 6-3, 6-4 | | match details | ||
| 15.08.11 | qual. | Ai Koga | Fang-Chi Tsao | 6-1, 6-4 | | match details | .png){kind=small} Taipei | Hard |
| 15.08.11 | 1st round | Na-Lae Han | Ai Koga | 6-3, 6-2 | | match details | ||
| 08.08.11 | qual. | Ai Koga | Yen-Ling Chen | 6-0, 6-2 | | match details | Taipei | Hard |
| 08.08.11 | 1st round | Yu-Lin Tai | Ai Koga | 6-4, 6-1 | | match details | ||
| 08.08.11 | q 1 | Ai Koga | Sherri Holley | 6-0, 6-0 | | match details | ||
| 13.06.11 | 1st round | Ting-Fei Juan | Ai Koga | 6-2, 6-3 | | match details | Taipei | Hard |
| 06.06.11 | 1st round | Ai Koga | Yu-Chu Juan | 6-1, 4-6, 6-0 | | match details | Taipei | Hard |
| 06.06.11 | 2nd round | Ting-Fei Juan | Ai Koga | 6-2, 6-4 | | match details | ||
| 25.04.11 | q 1 | Jia Xiang Lu | Ai Koga | 6-0, 6-1 | | match details |  Bangkok | Hard |
| 11.04.11 | q 1 | Su Jeong Jang | Ai Koga | 6-4, 6-2 | | match details |  Incheon | Hard |
