Estadio: Court 2 Round: 44 Ground: Hardcourt outdoor
| ITF W15 Nonthaburi | 2019/11/24 04:45 | Chisa Hosonuma v Nana Kawagishi | 6-3,6-0 |
| ITF W15 Cancún | 2019/11/08 16:15 | Chisa Hosonuma v Anastasia Sysoeva | 6-1,5-7,2-6 |
| ITF W15 Cancún | 2019/11/07 15:40 | Chisa Hosonuma v Ramya Natarajan | 2-6,7-5,6-1 |
| ITF W15 Cancún | 2019/11/05 14:00 | Elle Christensen v Chisa Hosonuma | 4-6,4-6 |
| ITF W15 Cancún | 2019/10/29 14:00 | Steffi Carruthers v Chisa Hosonuma | 6-3,6-0 |
| ITF W15 Anning | 2019/09/11 02:00 | Chisa Hosonuma v Meng Yi Chen | 3-6,6-4,6-1 |
| ITF W25 Kioto | 2019/09/02 07:20 | Sakura Hosogi v Chisa Hosonuma | 6-2,6-2 |
| ITF W25 Kioto | 2019/09/02 02:00 | Chisa Hosonuma v Ikumi Yamazaki | 3-6,6-3,10-8 |
| ITF W15 Nonthaburi | 2019/11/24 02:30 | Tanuchaporn Yongmod v Olga Helmi | 1-6,3-6 |
| ITF W15 Oslo | 2019/10/24 08:00 | Olga Helmi v Ekaterina Kazionova | 2-6,3-6 |
| ITF W15 Oslo | 2019/10/23 08:45 | Olga Helmi v Eline Audenaert | 6-0,6-7,6-0 |
| ITF W15 Oslo | 2019/10/22 08:30 | Olga Helmi v Maileen Nuudi | 6-0,6-4 |
| ITF W15 Hua Hin | 2019/10/19 04:30 | Olga Helmi v Mananchaya Sawangkaew | 2-6,1-6 |
| ITF W15 Hua Hin | 2019/10/18 03:00 | Jiangxue Han v Olga Helmi | 3-6,4-6 |
| ITF W15 Hua Hin | 2019/10/17 03:00 | Olga Helmi v Aunchisa Chanta | 6-3,6-4 |
| ITF W15 Hua Hin | 2019/10/16 03:00 | Olga Helmi v Haine Ogata | 6-3,6-4 |