Stadium: Court C Round: 25 Ground: Hardcourt indoor
| ITF W15 Nonthaburi Qual | 2019/12/01 02:30 | Mara Schmidt v Chisa Hosonuma | 6-3,3-6,10-8 |
| ITF W15 Nonthaburi | 2019/11/25 02:30 | Chisa Hosonuma v Olga Helmi | 3-6,3-6 |
| ITF W15 Nonthaburi | 2019/11/24 04:45 | Chisa Hosonuma v Nana Kawagishi | 6-3,6-0 |
| ITF W15 Cancun | 2019/11/08 16:15 | Chisa Hosonuma v Anastasia Sysoeva | 6-1,5-7,2-6 |
| ITF W15 Cancun | 2019/11/07 15:40 | Chisa Hosonuma v Ramya Natarajan | 2-6,7-5,6-1 |
| ITF W15 Cancun | 2019/11/05 14:00 | Elle Christensen v Chisa Hosonuma | 4-6,4-6 |
| ITF W15 Cancun | 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 W100 Tokyo | 2019/11/11 01:00 | Rina Saigo v Mana Ayukawa | 2-6,7-5,10-6 |
| ITF W25 Hua Hin | 2019/11/05 03:00 | Mana Ayukawa v Himeno Sakatsume | 4-6,2-6 |
| ITF W25 Hua Hin | 2019/11/04 08:30 | Mana Ayukawa v Arisara Jongma | 6-0,6-0 |
| ITF W60 Playford | 2019/10/30 03:05 | Alison Bai v Mana Ayukawa | 6-1,7-6 |
| ITF W60 Playford | 2019/10/28 23:30 | Mana Ayukawa v Alexandra Cannizzaro | 6-3,6-0 |
| ITF W25 Hamamatsu | 2019/10/16 01:00 | Risa Ushijima v Mana Ayukawa | 7-5,6-2 |
| ITF W25 Makinohara | 2019/10/09 00:30 | Mana Ayukawa v Ramu Ueda | 2-6,6-2,2-6 |
| WTA Nanchang | 2019/09/07 08:50 | Kaylah McPhee v Mana Ayukawa | 6-1,7-5 |