| Denmark Open MD | 2021/10/22 14:00 | Koga/Saito v Hoki/Kobayashi | L | 0-2 |
| Open d'Angleterre - Double Mixtes | 2021/03/17 14:50 | Koga/Saito v Hoki/Kobayashi | W | 2-0 |
| Indonesia Open MD | 2021/11/26 07:20 | Koga/Saito v Alfian/Ardianto | W | 2-1 |
| Indonesia Open MD | 2021/11/25 07:20 | Koga/Saito v Lu/Yang | W | 2-0 |
| Indonesia Open MD | 2021/11/24 05:00 | Jomkoh/Kedren v Koga/Saito | W | 0-2 |
| Indonesia Masters MD | 2021/11/18 05:40 | Kusumawa. / Rambitan v Koga/Saito | L | 2-0 |
| Open de France - Doubles Hommes | 2021/10/28 12:10 | Ko S H / Shin B C v Koga/Saito | L | 2-0 |
| Denmark Open MD | 2021/10/22 14:00 | Koga/Saito v Hoki/Kobayashi | L | 0-2 |
| Denmark Open MD | 2021/10/21 14:20 | Koga/Saito v Chia/Soh | W | 2-0 |
| Denmark Open MD | 2021/10/20 10:20 | Matsui/Takeuchi v Koga/Saito | W | 1-2 |
| Indonesia Open MD | 2021/11/26 08:00 | Astrup/Rasmussen v Hoki/Kobayashi | W | 1-2 |
| Indonesia Open MD | 2021/11/25 05:00 | Kusumawa. / Rambitan v Hoki/Kobayashi | W | 0-2 |
| Indonesia Open MD | 2021/11/24 05:20 | Hoki/Kobayashi v Ahsan/Setiawan | W | 2-1 |
| Indonesia Masters MD | 2021/11/21 05:40 | Gideon M F / Sukamuljo K S v Hoki/Kobayashi | W | 1-2 |
| Indonesia Masters MD | 2021/11/20 04:40 | Chia/Soh v Hoki/Kobayashi | W | 1-2 |
| Indonesia Masters MD | 2021/11/19 05:55 | Astrup/Rasmussen v Hoki/Kobayashi | W | 1-2 |
| Indonesia Masters MD | 2021/11/18 06:00 | Hoki/Kobayashi v Ahsan/Setiawan | W | 2-1 |
| Indonesia Masters MD | 2021/11/17 09:50 | Hoki/Kobayashi v Arjun / Kapila | W | 2-0 |