South Korea: Seoul - Doubles - Main |
| 1/8-finals | Morgina A./Takahata K. | Hibino N./Kalashnikova O. | 0:2 (3:6, 5:7) | dettagli | 18.09.2017 |
China: Dalian - Doubles - Main |
| 1/8-finals | Sema E./Takahata K. | Han X.Y./Moore J. | 0:2 (3:6, 5:7) | dettagli | 06.09.2017 |
China: Nanchang - Doubles - Main |
| Quarter-finals | Jiang X./Tang Q. | Ninomiya M./Takahata K. | 2:0 (7:5, 7:5) | dettagli | 27.07.2017 |
| 1/8-finals | Sun Xu L./Zheng W. | Ninomiya M./Takahata K. | 0:2 (2:6, 3:6) | dettagli | 25.07.2017 |
China: Zhengzhou - Doubles - Main |
| Quarter-finals | Plipuech P./Takahata K. | Adamczak M./Chan C-W. | 1:2 (62:7, 7:64, 6:10) | dettagli | 20.04.2017 |
| 1/8-finals | Grammatikopoulou V./Sharipova S. | Plipuech P./Takahata K. | 1:2 (7:65, 2:6, 11:13) | dettagli | 18.04.2017 |
Taiwan: Taipei - Doubles - Main |
| 1/8-finals | Rompies J./Takahata K. | Raina A./Webley-Smith E. | 0:2 (5:7, 2:6) | dettagli | 15.11.2016 |
Hong Kong: Hong Kong - Doubles - Main |
| 1/8-finals | Broady N./Watson H. | Lee Y.-H./Takahata K. | 2:1 (4:6, 6:3, 10:8) | dettagli | 13.10.2016 |
Japan: Tokyo - Doubles - Main |
| 1/8-finals | Kato M./Xu Y. | Lee Y.-H./Takahata K. | 2:0 (6:4, 6:0) | dettagli | 21.09.2016 |
Japan: Tokyo 2 - Doubles - Main |
| 1/8-finals | Glushko J./Larsson J. | Hisami K./Takahata K. | 2:0 (6:4, 6:1) | dettagli | 14.09.2016 |
China: Dalian - Doubles - Main |
| Final | Lertpitaksinchai N./Rompies J. | Lee Y.-H./Takahata K. | 0:2 (2:6, 1:6) | dettagli | 11.09.2016 |
| Semi-finals | Abduraimova N./Marozava L. | Lee Y.-H./Takahata K. | 0:2 (3:6, 2:6) | dettagli | 10.09.2016 |
| Quarter-finals | Lee Y.-H./Takahata K. | Krunic A./Li Y. | 2:0 (6:3, 6:4) | dettagli | 09.09.2016 |
| 1/8-finals | Lee Y.-H./Takahata K. | Glushko J./Paszek T. | 2:0 (7:67, 6:2) | dettagli | 06.09.2016 |
China: Nanchang - Doubles - Main |
| 1/8-finals | Chan C-W./Hunter S. | Hisami K./Takahata K. | 2:0 (7:62, 7:5) | dettagli | 03.08.2016 |
Sweden: Bastad - Doubles - Main |
| 1/8-finals | Kuncikova L./Stuchla K. | Hisami K./Takahata K. | 2:0 (6:4, 6:3) | dettagli | 18.07.2016 |
Switzerland: Gstaad - Doubles - Main |
| 1/8-finals | Arruabarrena L./Knoll X. | Hisami K./Takahata K. | 2:0 (6:0, 7:61) | dettagli | 14.07.2016 |
Malaysia: Kuala Lumpur - Doubles - Main |
| 1/8-finals | Melnikova M./Panova A. | Plipuech P./Takahata K. | 2:0 (6:2, 6:1) | dettagli | 29.02.2016 |
Australia: Hobart - Doubles - Main |
| 1/8-finals | Nara K./Takahata K. | Aoyama S./Ninomiya M. | 0:2 (4:6, 2:6) | dettagli | 12.01.2016 |
China: Shenzhen - Doubles - Main |
| 1/8-finals | Gibbs N./Riske-Amritraj A. | Chan C-W./Takahata K. | 2:0 (7:65, 6:0) | dettagli | 04.01.2016 |
Taiwan: Taipei - Doubles - Main |
| Final | Hisami K./Takahata K. | Melnikova M./Mertens E. | 2:0 (6:1, 6:2) | dettagli | 22.11.2015 |
| Semi-finals | Han X.Y./Zhang K. | Hisami K./Takahata K. | 1:2 (6:2, 5:7, 6:10) | dettagli | 21.11.2015 |
| Quarter-finals | Hesse A./Kuwata H. | Hisami K./Takahata K. | 1:2 (1:6, 6:3, 8:10) | dettagli | 19.11.2015 |
| 1/8-finals | Hisami K./Takahata K. | Lee Y./Pai Y. | 2:0 (6:0, 6:1) | dettagli | 18.11.2015 |
South Korea: Seoul - Doubles - Main |
| 1/8-finals | Miyamura M./Takahata K. | Dzalamidze N./Monova P. | 0:2 (62:7, 4:6) | dettagli | 21.09.2015 |
China: Nanchang - Doubles - Main |
| Semi-finals | Chan C-W./Wang Y. | Kato M./Takahata K. | 2:0 (6:2, 6:4) | dettagli | 01.08.2015 |
| Quarter-finals | Bai A./Lee Y.-H. | Kato M./Takahata K. | 0:2 (3:6, 0:6) | dettagli | 31.07.2015 |
| 1/8-finals | Kato M./Takahata K. | Namigata J./Sema E. | 2:1 (6:3, 65:7, 10:7) | dettagli | 29.07.2015 |
Japan: Osaka - Doubles - Main |
| Quarter-finals | Okamura K./Takahata K. | Jurak Schreiber D./Moulton-Levy M. | 0:2 (3:6, 5:7) | dettagli | 10.10.2014 |
| 1/8-finals | Doi M./Svitolina E. | Okamura K./Takahata K. | 1:2 (3:6, 6:3, 8:10) | dettagli | 07.10.2014 |
Australia: W25 Launceston - Doubles - Main |
| Final | Aoyama S./Takahata K. | Hsieh Y./Zheng S. | 2:0 (6:4, 6:4) | dettagli | 10.02.2012 |
| Semi-finals | Fitzpatrick A./Hisami K. | Aoyama S./Takahata K. | 0:2 (2:6, 2:6) | dettagli | 09.02.2012 |
| Quarter-finals | Ejdesgaard M./Hogenkamp R. | Aoyama S./Takahata K. | 0:2 (2:6, 2:6) | dettagli | 08.02.2012 |
| 1/8-finals | Hoynaski N./Myers A. | Aoyama S./Takahata K. | 0:2 (5:7, 3:6) | dettagli | 07.02.2012 |
Australia: W60 Burnie - Doubles - Main |
| Semi-finals | Aoyama S./Takahata K. | Rodionova Ar./South M. | 1:2 (6:3, 3:6, 11:13) | dettagli | 02.02.2012 |
| Quarter-finals | Nakamura A./Oka A. | Aoyama S./Takahata K. | 0:2 (2:6, 1:6) | dettagli | 02.02.2012 |
| 1/8-finals | Hisami K./Okadaue C. | Aoyama S./Takahata K. | 0:2 (2:6, 4:6) | dettagli | 31.01.2012 |
Japan: Osaka - Doubles - Main |
| 1/8-finals | Aoyama S./Takahata K. | Date K./Zhang S. | 1:2 (4:6, 7:62, 8:10) | dettagli | 10.10.2011 |