| India Open Women | 2019/03/27 07:30 | Phittayaporn Chaiwan v Riya Mukherjee | L | 0-2 |
| China Masters Women | 2019/03/15 11:40 | Phittayaporn Chaiwan v Ga Eun Kim | L | 0-2 |
| China Masters Women | 2019/03/14 05:00 | Natsumi Shimoda v Phittayaporn Chaiwan | W | 1-2 |
| China Masters Women | 2019/03/13 05:20 | Phittayaporn Chaiwan v Su Yu Chen | W | 2-0 |
| Giraldilla Int. XD | 2019/02/24 06:30 | Natsuki Oie v Phittayaporn Chaiwan | L | 2-0 |
| Giraldilla Int. XD | 2019/02/23 06:40 | Hirari Mizui v Phittayaporn Chaiwan | W | 1-2 |
| Giraldilla Int. XD | 2019/02/21 12:50 | Yue Yann Jaslyn Hooi v Phittayaporn Chaiwan | W | 0-2 |
| Thailand Masters Women | 2019/01/09 02:40 | Phittayaporn Chaiwan v Jia Min Yeo | L | 0-2 |
| Vietnam Int. Women | 2019/04/12 06:30 | Dinar Dyah Ayustine v Shiori Saito | L | 2-1 |
| Vietnam Int. Women | 2019/04/10 03:00 | Shiori Saito v Li Ting Peng | W | 2-0 |
| Osaka Int. Women | 2019/04/06 04:00 | Saena Kawakami v Shiori Saito | L | 2-0 |
| Giraldilla Int. XD | 2018/09/23 07:00 | Minatsu Mitani v Shiori Saito | L | 2-0 |
| Giraldilla Int. XD | 2018/09/22 07:00 | Shiori Saito v Yulia Y Susanto | W | 2-0 |
| Giraldilla Int. XD | 2018/09/21 09:00 | Shiori Saito v Ruselli Hartawan | W | 2-1 |
| Swiss Open WD Qual | 2018/09/20 08:00 | Shiori Saito v Putri Kusuma Wardani | W | 2-0 |
| Swiss Open WD Qual | 2018/09/19 07:50 | Shiori Saito v Gabriela M Moningka | W | 2-1 |