Japan
| Age | 34 (03-10-1991) |
| Country | Japan |
| Birthplace | |
| Height | |
| Weight | |
| Plays | |
| Backhand | |
| Favorite Surface |  Hard |
| Coach | |
| Turned Pro | |
| Player Status | Inactive |
Match Stats
Hard
Clay
Grass
Indoor
All
Service Stats
| Aces / Game | NaN | 0 / 0 |
| DFs / Game | NaN | 0 / 0 |
| 1st Serve % | 0% | 0 / 0 |
| 1st Serve Win % | 0% | 0 / 0 |
| 2nd Serve Win % | 0% | 0 / 0 |
| Service Points Win % | 0% | 0 / 0 |
Return Stats
| Opponent Aces / Game | NaN | 0 / 0 |
| Opponent Double Faults / Game | NaN | 0 / 0 |
| Opponent 1st Serve % | 0% | 0 / 0 |
| 1st Return Win % | 0% | 0 / 0 |
| 2nd Return Win % | 0% | 0 / 0 |
| Return Points Win % | 0% | 0 / 0 |
Break Points (Serve)
| Break Points Saved Per Game | NaN | 0 / 0 |
| Break Points Faced Per Game | NaN | 0 / 0 |
| Break Points Save % | 0% | 0 / 0 |
| Service Hold % | 0% | 0 / 0 |
Break Points (Rtn)
| Break Points Won Per Game | NaN | 0 / 0 |
| Opponent Break Points Per Game | NaN | 0 / 0 |
| BP Won % | 0% | 0 / 0 |
| Opp Hold % | 0% | 0 / 0 |
Ai Koga Past Matches
Ai Koga Surface Summary
| year | All | hard | clay | indoor | grass |
| 2012 | 21-14 | 15-10 | 0-0 | 2-2 | 4-2 |
| 2011 | 15-19 | 10-12 | 0-0 | 4-6 | 1-1 |
| 2010 | 3-6 | 0-2 | 0-0 | 3-4 | 0-0 |
| 2009 | 0-4 | 0-2 | 0-0 | 0-2 | 0-0 |
| 2008 | 4-3 | 2-1 | 0-0 | 2-2 | 0-0 |
Ai Koga Performance Breakdown
Tournament Level Breakdown
| Grand Slam | 0.0% | 0 / 0 |
| Masters | 0.0% | 0 / 0 |
| Main Tour | 0.0% | 0 / 0 |
| Cups | 0.0% | 0 / 0 |
| Challengers | 42.9% | 9 / 12 |
| Futures | 50.0% | 34 / 34 |
Opponent Rank Breakdown
| Vs No.1 | 0.0% | 0 / 0 |
| Vs Top.5 | 0.0% | 0 / 0 |
| Vs Top.10 | 0.0% | 0 / 0 |
| Vs Top.20 | 0.0% | 0 / 0 |
| Vs Top.50 | 0.0% | 0 / 0 |
| Vs Top.100 | 0.0% | 0 / 0 |
Surface Breakdown
| Overall | 52.2% | 35 / 32 |
| Hard | 50.0% | 27 / 27 |
| Clay | 0.0% | 0 / 0 |
| Indoor | 60.0% | 3 / 2 |
| Grass | 62.5% | 5 / 3 |
Round Breakdown
| Quarter-Final | 0.0% | 0 / 7 |
| Second | 53.8% | 7 / 6 |
| First | 39.4% | 13 / 20 |
| Qualifying Final | 53.3% | 8 / 7 |
| Qualifying R2 | 83.3% | 5 / 1 |
| Qualifying R1 | 66.7% | 10 / 5 |
Ai Koga Titles/Finals/Semis 
Title
Finals
Ai Koga interesting Heads to Heads
 Ai Koga | Draw VIEW H2H |  Kumiko Iijima | ||
Ai Koga | Draw VIEW H2H |  Remi Tezuka | ||
Ai Koga | Draw VIEW H2H |  Maki Arai | ||
Ai Koga | Draw VIEW H2H |  Rushmi Chakravarthi | ||
Ai Koga | Draw VIEW H2H |  Akiko Yonemura | ||
Ai Koga | Draw VIEW H2H |  Tomoyo Takagishi | ||
Ai Koga | Draw VIEW H2H |  Jung-Yoon Shin | ||
Ai Koga | Draw VIEW H2H |  Erika Takao | ||
Ai Koga | Draw VIEW H2H |  I-Hsuan Hwang | ||
Ai Koga | Draw VIEW H2H |  Sayaka Umeda | ||
Ai Koga | Draw VIEW H2H |  Nungnadda Wannasuk | ||
Ai Koga | Draw VIEW H2H |  Haruka Inoue | ||
Upcoming Tennis Predictions & Head to Heads
Boulter Vekic Prediction H2H (1-0)
Marcinko Ito Prediction H2H (1-0)
Iatcenko Tikhonova Prediction H2H (0-0)
Sun Kalinina Prediction H2H (0-0)
Wang Galfi Prediction H2H (0-0)
Stoiana Naef Prediction H2H (1-0)
Ashlyn Krueger Darja Vidmanova Prediction H2H (0-0)
 ATP Rankings | |||
|---|---|---|---|
| 1 | 13500 PTS | ||
| 2 | 9960 PTS | ||
| 3 | 7305 PTS | ||
| 4 | 4440 PTS | ||
| 5 | 3920 PTS | ||
| 6 | 3905 PTS | ||
| 7 | 3760 PTS | ||
| 8 | 3760 PTS | ||
| 9 | 3720 PTS | ||
| 10 | 3540 PTS | ||
 Live Tennis Events | |||
|---|---|---|---|
 | Boss Open - Stuttgart Germany | ||
 | HSBC Championships - London Great Britain | ||
 | Libema Open - 's-Hertogenbosch Netherlands | ||
| Terra Wortmann Open - Halle Germany | ||
 | Bratislava Challenger Slovakia | ||
 | Cattolica Challenger Italy | ||
| Ilkley Challenger Great Britain | ||
 | Lyon Challenger France | ||
| Nottingham 2 Challenger Great Britain | ||
 | M15 Kayseri Turkey | ||
 | M15 Kursumlijska Banja Serbia | ||
 | M15 Maanshan China | ||
 | M15 Tokyo Japan | ||
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