| Asia Championships XD | 04/23 06:20 | 1 | Watanabe/Higashino v Phuangphuapet N / Amitrapai S | W | 2-0 | |
| Singapore Open XD | 04/10 07:20 | 5 | Tan/Lai v Watanabe/Higashino | L | 2-1 | |
| Osaka Int. MD | 04/05 00:40 | - | Watanabe Y / Higashino A v Kang M H / Kim J H | L | 1-2 | |
| Open de Malaisie - Doubles Mixtes | 04/02 09:30 | 5 | Tan/Lai v Watanabe/Higashino | L | 2-0 | |
| Tong Yun Kai Cup XD | 03/24 06:00 | - | Watanabe/Higashino v He / Du | L | 0-2 | |
| Tong Yun Kai Cup XD | 03/21 13:00 | - | Watanabe/Higashino v Chau H W / Mak H C | W | 2-0 | |
| Tong Yun Kai Cup XD | 03/21 13:00 | - | Watanabe Y / Higashino A v Chau/Mak | W | 2-0 | |
| Open d'Angleterre | 03/10 13:30 | 1 | Zheng/Huang v Watanabe/Higashino | L | 2-0 | |
| Open d'Angleterre | 03/09 10:30 | 2 | Watanabe/Higashino v Goh/Lai | W | 2-0 | |
| Open d'Angleterre | 03/08 10:30 | 3 | Ahmad T / Kandow W O v Watanabe/Higashino | W | 0-2 | |
| Open d'Angleterre | 03/07 13:20 | 4 | Lu K / Chen L v Watanabe/Higashino | W | 1-2 | |
| Open d'Angleterre | 03/06 18:45 | 5 | Christiansen M / Pedersen C v Watanabe/Higashino | W | 1-2 | |
| Open d'Allemagne - Doubles Mixtes | 03/01 19:40 | 3 | Watanabe/Higashino v Tabeling/Piek | L | 1-2 | |
| Open d'Allemagne - Doubles Mixtes | 02/28 19:30 | 4 | Watanabe/Higashino v Mikkelsen M / Surrow M | W | 2-0 | |
| Open d'Allemagne - Doubles Mixtes | 02/26 18:15 | 5 | Watanabe/Higashino v Phuangphuapet N / Amitrapai S | W | 2-0 | |
| Indonesia Masters XD | 01/26 07:30 | 2 | Zheng/Huang v Watanabe/Higashino | L | 2-1 | |
| Indonesia Masters XD | 01/25 09:53 | - | Watanabe/Higashino v Lu K / Chen L | W | 2-0 | |
| Indonesia Masters XD | 01/25 07:50 | 3 | Watanabe/Higashino v Lu K / Chen L | W | 2-0 | |
| Indonesia Masters XD | 01/24 03:40 | 4 | Watanabe/Higashino v Lamsfuss M / Herttrich I | W | 2-0 | |
| Indonesia Masters XD | 01/23 02:50 | 5 | Watanabe/Higashino v Lee Y / Lu C Y | W | 2-0 | |
| Indonesia Masters XD | 01/20 04:30 | 1 | Watanabe/Higashino v Puavaranukroh D / Taerattanachai S | W | 2-0 | |
| Indonesia Masters XD | 01/19 04:00 | 2 | Watanabe/Higashino v Chan P S / Goh L Y | W | 2-1 | |
| Indonesia Masters XD | 01/18 07:00 | 3 | Watanabe/Higashino v Seo/Chae | W | 2-0 | |
| Indonesia Masters XD | 01/17 02:00 | 4 | Watanabe/Higashino v Lane B / Pugh J | W | 2-0 | |
| Indonesia Masters XD | 01/15 08:30 | 5 | Watanabe/Higashino v Magee S / Magee C | W | 2-1 | |
| Open d'Angleterre | 12/15 03:30 | 2 | Watanabe/Higashino v Wang / Huang | L | 1-2 | |
| Open d'Angleterre | 12/14 11:30 | 3 | Watanabe/Higashino v Chan P S / Goh L Y | W | 2-0 | |
| Open d'Angleterre | 12/13 11:30 | 2 | Watanabe/Higashino v Wang / Huang | L | 0-2 | |
| Open d'Angleterre | 12/12 10:00 | 1 | Watanabe/Higashino v Faizal H / Widjaja G E | L | 1-2 | |
| Indonesia Masters XD | 11/18 10:37 | - | Watanabe/Higashino v Wang / Huang | W | 2-0 |