| Japan Masters Women | 11/15 01:45 | 5 | Tomoka Miyazaki v Kawakami, Saena | L | 2-0 | |
| Open de France - Femmes | 10/25 15:05 | 5 | Zhi Yi Wang v Kawakami, Saena | L | 2-0 | |
| Denmark Open Women | 10/18 10:25 | 5 | Zhi Yi Wang v Kawakami, Saena | L | 2-0 | |
| Arctic Open Women | 10/12 13:45 | 4 | Mia Blichfeldt v Kawakami, Saena | L | 2-0 | |
| Arctic Open Women | 10/11 07:00 | 5 | Heli Neiman v Kawakami, Saena | W | 0-2 | |
| Hong Kong Open 2019, WS | 09/13 05:25 | 5 | Kawakami, Saena v Yue Han | L | 0-2 | |
| Fuzhou China Open 2019, WS | 09/07 09:55 | 4 | Kawakami, Saena v Bing Jiao He | L | 0-2 | |
| Fuzhou China Open 2019, WS | 09/06 10:40 | 5 | Kawakami, Saena v Supanida Katethong | W | 2-1 | |
| Australian Open Women | 08/02 03:05 | 5 | Kawakami, Saena v Hsiang Ti Lin | L | 1-2 | |
| Japan Open Women | 07/26 10:10 | 5 | Supanida Katethong v Kawakami, Saena | L | 2-0 | |
| Korea Open Women | 07/20 07:25 | 4 | Kawakami, Saena v Zhi Yi Wang | L | 0-2 | |
| Korea Open Women | 07/19 08:45 | 5 | Tanya Hemanth v Kawakami, Saena | W | 0-2 | |
| Canada Open Women | 07/06 21:45 | 4 | Shuo Yun Sung v Kawakami, Saena | L | 2-0 | |
| Canada Open Women | 07/05 22:55 | 5 | Kawakami, Saena v Busanan Ongbamrungphan | D | Retired | |
| Indonesia Open Women | 06/15 12:35 | 4 | Kawakami, Saena v Yu Fei Chen | L | 0-2 | |
| Indonesia Open Women | 06/14 12:55 | 5 | Kawakami, Saena v Aya Ohori | W | 2-0 | |
| Singapore Open Women | 06/08 05:45 | 4 | Yu Fei Chen v Kawakami, Saena | L | 2-1 | |
| Singapore Open Women | 06/06 08:30 | 5 | Kawakami, Saena v Ishika Jaiswal | W | 2-0 | |
| Malaysia Masters Women | 05/24 04:25 | 5 | Wen Chi Hsu v Kawakami, Saena | L | 2-1 | |
| Sudirman Cup Women | 05/14 09:40 | - | Kawakami, Saena v Lisa Curtin | W | 2-0 | |
| Asia Championships Women | 04/26 11:20 | 5 | Kawakami, Saena v Yue Han | L | 0-2 | |
| Open d'Angleterre - Femmes | 03/14 13:50 | 5 | Zhi Yi Wang v Kawakami, Saena | L | 2-0 | |
| Open d'Allemagne - Femmes | 03/09 16:00 | 4 | Kawakami, Saena v Bing Jiao He | L | 1-2 | |
| Open d'Allemagne - Femmes | 03/08 10:50 | 5 | Kawakami, Saena v Lauren Lam | W | 2-0 | |
| Masters de Thaïlande - Femmes | 02/01 07:20 | 5 | Yu Po Pai v Kawakami, Saena | L | 2-1 | |
| Australian Open Women | 11/18 04:40 | 3 | Gregoria Mariska Tunjung v Kawakami, Saena | L | 2-1 | |
| Australian Open Women | 11/17 03:00 | 4 | Kawakami, Saena v Tiffany Ho | W | 2-0 | |
| Australian Open Women | 11/15 22:20 | 5 | Kawakami, Saena v Yu Jin Sim | W | 2-0 | |
| Indonesia Masters Women | 10/21 07:00 | 3 | Kawakami, Saena v Riko Gunji | L | 1-2 | |
| Indonesia Masters Women | 10/20 06:40 | 4 | Kawakami, Saena v Bilqis Prasista | - | Retired |