| Masters d'Espagne - Doubles Hommes | 2021/05/22 14:00 | Kusumawa. / Rambitan v Popov/Popov | L | 2-1 |
| World Tour Finals MD | 2021/12/02 09:20 | Hoki/Kobayashi v Popov/Popov | L | 2-0 |
| World Tour Finals MD | 2021/12/01 09:40 | Ong/Teo v Popov/Popov | L | 2-0 |
| Indonesia Open MD | 2021/11/23 02:00 | Goh/Izzuddin v Popov/Popov | L | 2-0 |
| Indonesia Masters MD | 2021/11/17 09:50 | Popov/Popov v Ahsan/Setiawan | L | 0-2 |
| Hylo Open MD | 2021/11/02 09:00 | Popov/Popov v Jomkoh/Kedren | L | 0-2 |
| Open de France - Doubles Hommes | 2021/10/28 11:00 | Alfian/Ardianto v Popov/Popov | L | 2-0 |
| Open de France - Doubles Hommes | 2021/10/26 14:40 | Popov/Popov v Lundgaard D / Thyrri M | W | 2-1 |
| Denmark Open MD | 2021/10/19 09:40 | Gideon M F / Sukamuljo K S v Popov/Popov | L | 2-0 |
| World Tour Finals MD | 2021/12/02 09:20 | Ong/Teo v Kusumawa. / Rambitan | L | 2-1 |
| World Tour Finals MD | 2021/12/01 09:20 | Hoki/Kobayashi v Kusumawa. / Rambitan | L | 2-0 |
| Indonesia Open MD | 2021/11/25 05:00 | Kusumawa. / Rambitan v Hoki/Kobayashi | L | 0-2 |
| Indonesia Open MD | 2021/11/24 06:00 | Kusumawa. / Rambitan v Lane/Vendy | W | 2-1 |
| Indonesia Masters MD | 2021/11/19 06:20 | Gideon M F / Sukamuljo K S v Kusumawa. / Rambitan | L | 2-0 |
| Indonesia Masters MD | 2021/11/18 05:40 | Kusumawa. / Rambitan v Koga/Saito | W | 2-0 |
| Indonesia Masters MD | 2021/11/17 09:30 | Ivanov V / Sozonov I v Kusumawa. / Rambitan | W | 0-2 |
| Hylo Open MD | 2021/11/06 12:50 | Kusumawa. / Rambitan v Carnando/Marthin | L | 0-2 |