| Qatar Open XD | 11/24 09:50 | 1 | Kato, Kyoka v Kang, Dayeon | W | 3-0 | |
| Qatar Open XD | 11/07 09:03 | - | Hanna Ryu v Kato, Kyoka | L | 3-2 | |
| Qatar Open XD | 09/22 00:00 | 4 | Kato, Kyoka v Hoi Kem Doo | L | 0-4 | |
| Qatar Open XD | 09/21 00:00 | 5 | Jia Liu v Kato, Kyoka | W | 0-4 | |
| Qatar Open XD | 09/20 10:30 | 1 | Kato, Kyoka v Yee Lok Lam | W | 4-0 | |
| Qatar Open XD | 09/20 07:00 | 1 | Rui Zhang v Kato, Kyoka | L | 3-1 | |
| Qatar Open XD | 09/19 18:20 | 1 | Chen, Ke v Kato, Kyoka | W | 0-3 | |
| Qatar Open XD | 09/19 16:20 | 1 | Kato, Kyoka v Karoline Mischek | W | 4-2 | |
| Qatar Open XD | 09/19 08:20 | 1 | Yidi Wang v Kato, Kyoka | W | 2-3 | |
| Qatar Open XD | 08/18 15:20 | 4 | Kato, Kyoka v Hina Hayata | L | 1-4 | |
| Qatar Open XD | 08/17 15:00 | 1 | Kato, Kyoka v Hana Matelova | W | 4-1 | |
| Qatar Open XD | 08/16 07:10 | 1 | Kato, Kyoka v Morizono, Mizuki | L | 0-3 | |
| Qatar Open XD | 08/16 06:59 | - | Kato, Kyoka v Morizono, Mizuki | L | 0-3 | |
| Qatar Open XD | 06/21 04:34 | - | Shiomi, Maki v Kato, Kyoka | L | 3-1 | |
| Qatar Open XD | 06/21 02:40 | 1 | Saki Shibata v Kato, Kyoka | W | 1-3 | |
| Qatar Open XD | 06/20 09:21 | - | Kato, Kyoka v Soo, Wai Yam Minnie | W | 3-2 | |
| Qatar Open 2019, MS | 03/18 14:00 | 1 | Hitomi Sato v Kato, Kyoka | L | 4-2 | |
| Qatar Open XD | 03/18 12:00 | 1 | Kato, Kyoka v Saki Shibata | L | 0-3 | |
| Qatar Open 2019, MS | 03/18 08:00 | 1 | Kato, Kyoka v Mikhaylova, Polina | W | 4-3 | |
| Qatar Open XD | 03/17 15:00 | - | Shiomi, Maki v Kato, Kyoka | W | 1-3 | |
| Qatar Open XD | 03/17 12:00 | 1 | Trigolos, Daria v Kato, Kyoka | W | 1-3 | |
| Qatar Open 2019, MS | 03/17 07:30 | 1 | Kato, Kyoka v Vorobeva, Olga | W | 4-2 | |
| Qatar Open XD | 03/16 17:37 | - | Kisel, Darya v Kato, Kyoka | W | 0-3 | |
| Qatar Open XD | 02/22 05:45 | - | Soo, Wai Yam Minnie v Kato, Kyoka | L | 3-0 | |
| Qatar Open XD | 02/21 17:18 | - | Kato, Kyoka v Jian Zeng | W | 3-2 | |
| Qatar Open 2019, MS | 11/19 11:10 | 4 | Kato, Kyoka v Hu, Melek | L | 1-4 | |
| Swedish Open (WTP) 2019, WS | 11/18 16:50 | 5 | Mima Ito v Kato, Kyoka | W | 2-4 | |
| Swedish Open (WTP) 2019, WS | 11/18 10:30 | 6 | Kato, Kyoka v Ye Lin | W | 4-2 | |
| Qatar Open XD | 11/17 14:00 | - | Manika Batra v Kato, Kyoka | L | 3-2 | |
| Qatar Open XD | 11/16 12:47 | - | Kato, Kyoka v Vermaas, Kim | W | 4-3 |