Stadium: Court 5 Round: 54 Ground: Hardcourt outdoor
| ITF W15 Hua Hin | 2019/10/09 03:00 | Yexin Ma v Olga Helmi | 6-3,6-0 |
| ITF W15 Antalya | 2019/09/24 07:00 | Olga Helmi v Martyna Kubka | 2-6,6-7 |
| ITF W15 Antalya | 2019/09/18 08:40 | Olga Helmi v Fanny Ostlund | 2-6,1-6 |
| ITF W15 Haren | 2019/08/28 12:50 | Katharina Hering v Olga Helmi | 6-2,6-4 |
| ITF W15 Oldenzaal | 2019/08/14 08:00 | Olga Helmi v Marina Yudanov | 6-7,0-6 |
| ITF W25 Woking | 2019/07/29 08:30 | Grace Piper v Olga Helmi | 7-6,6-3 |
| ITF W15 Gimcheon | 2019/06/21 01:00 | Olga Helmi v Shiori Fukuda | 5-7,4-6 |
| ITF W15 Gimcheon | 2019/06/20 03:45 | Yidi Yang v Olga Helmi | 6-7,6-4,3-6 |
| ITF W15 Hua Hin | 2019/10/14 03:00 | Kanako Osafune v Jessica Fowler | 6-3,6-1 |
| ITF W25 Makinohara | 2019/10/07 00:30 | Kanako Osafune v Satsuki Koike | 2-6,6-2,3-10 |
| ITF W25 Kyoto | 2019/09/02 02:00 | Kanako Osafune v Michiru Furuya | 3-6,4-6 |
| ITF W25 Taipei | 2019/07/29 02:00 | Kanako Osafune v Satsuki Koike | 1-6,1-6 |
| ITF W25 Qujing | 2019/07/16 03:30 | Xinyu Gao v Kanako Osafune | 6-4,6-3 |
| ITF W25 Qujing | 2019/07/15 03:15 | Xiaotong Zhao v Kanako Osafune | 0-6,2-6 |
| ITF Women Hamamatsu | 2018/10/14 00:00 | Kanako Osafune v Minami Shuto | 6-7,2-6 |
| ITF Women Kyoto | 2018/09/05 01:00 | Kanako Osafune v Mitsumi Kawasaki | 4-6,6-7 |