| ITF W15 Prokuplje | 2019/07/04 09:00 | Darya Astakhova v Rina Saigo | 6-4,3-6,6-0 |
| ITF W15 Prokuplje | 2019/07/03 08:55 | Zita Kovacs v Rina Saigo | 2-6,0-6 |
| ITF W15 Alkmaar | 2019/06/26 08:00 | Nika Kukharchuk v Rina Saigo | 6-0,6-2 |
| ITF W25 Hong Kong | 2019/05/27 09:30 | Yui Chikaraishi v Rina Saigo | 6-3,6-0 |
| ITF W25 Singapore | 2019/05/23 04:45 | Jacqueline Cako v Rina Saigo | 6-2,6-3 |
| ITF W25 Singapore | 2019/05/22 06:35 | Hx Izabella Tan v Rina Saigo | 4-6,1-6 |
| ITF W25 Singapore | 2019/05/20 02:00 | Rina Saigo v Nadia Ravita | 6-2,6-3 |
| ITF W25 Singapore | 2019/05/15 02:00 | Valeria Savinykh v Rina Saigo | 6-3,6-3 |