| ITTF World Championships WD | 05/22 11:35 | 5 | Takahashi B / Kumahara C v Samara/Dragoman | L | 2-3 | |
| ITTF World Championships WD | 05/21 09:35 | 6 | Takahashi B / Kumahara C v Tomanovska/Blaskova | W | 3-2 | |
| WTT Feeder Dusseldorf II WD | 02/23 09:50 | - | Takahashi B / Kumahara C v Qi/Wu | L | 0-3 | |
| WTT Feeder Dusseldorf II WD | 02/22 18:00 | - | Takahashi B / Kumahara C v Arguelles/Tofant | W | 3-2 | |
| WTT Feeder Dusseldorf II WD Quals | 02/21 11:31 | - | Ar`vic/Lu`sku v Takahashi B / Kumahara C | W | 2-3 | |
| ITTF Pan American Championships WD | 11/06 21:00 | - | Takahashi B / Kumahara C v Wang/Sung | L | 2-3 | |
| ITTF Pan American Championships WD | 11/06 13:30 | - | Diaz A / Diaz M v Takahashi B / Kumahara C | W | 0-3 | |
| ITTF Pan American Championships WD | 11/04 16:00 | - | Zhang/Liao v Takahashi B / Kumahara C | W | 1-3 | |
| ITTF Pan American Championships WD | 11/01 13:00 | - | Takahashi B / Kumahara C v Ortega D / Vega P | W | 3-1 | |
| ITTF South American Champs WD | 07/27 20:00 | - | Watanabe/Correia v Takahashi B / Kumahara C | W | 0-3 | |
| ITTF South American Champs WD | 07/27 15:30 | - | Takahashi B / Kumahara C v Tellez/Echeverry | W | 3-1 | |
| ITTF South American Champs WD | 07/25 15:30 | - | Takahashi B / Kumahara C v Paredes/Salazar | W | 3-0 | |
| ITTF South American Champs WD | 07/23 21:30 | - | Takahashi B / Kumahara C v Morales J / Rios V | W | 3-0 | |
| WTT Contender Lima WD | 06/18 00:05 | - | Takahashi B / Kumahara C v Sasao/Mori | L | 1-3 | |
| WTT Contender Lima WD | 06/16 19:30 | 4 | Rios/Fabiola Diaz v Takahashi B / Kumahara C | W | 1-3 | |
| WTT Singapore Smash WD | 03/11 13:10 | 5 | Takahashi B / Kumahara C v Lin Y / Zeng J | L | 0-3 | |
| World Championship WD | 11/24 19:00 | 57 | Takahashi B / Kumahara C v Nan Yuan/Chasselin | L | 0-3 | |
| Qatar Open XD | 02/23 10:00 | 1 | Cha H S / Kim N H v Takahashi B / Kumahara C | L | 3-0 | |
| Qatar Open XD | 02/22 17:00 | 1 | Chen M / Zhu Y v Takahashi B / Kumahara C | L | 3-0 |