Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| Hua Hin, Simples W-ITF-THA-10A | 2019/10/15 03:00 | Olga Helmi v Kanako Osafune | 6-2,6-3 |
| Hua Hin, Simples W-ITF-THA-10A | 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 | Hering, Katharina v Olga Helmi | 6-2,6-4 |
| Oldenzaal, Singles W-ITF-NED-03A | 2019/08/14 08:00 | Olga Helmi v Yudanov, Marina | 6-7,0-6 |
| Woking, Singles W-ITF-GBR-08A | 2019/07/29 08:30 | Piper, Grace v Olga Helmi | 7-6,6-3 |
| Gimcheon, Singles Qualifying W-ITF-KOR-05A | 2019/06/21 01:00 | Olga Helmi v Shiori Fukuda | 5-7,4-6 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/10/15 04:40 | Haine Ogata v Li, Yixuan | 2-6,3-6 |
| Hua Hin, Simples W-ITF-THA-10A | 2019/10/08 04:20 | Haine Ogata v Yamaguchi, Ai | 3-6,6-7 |
| ITF W15 Cancun | 2019/08/28 14:00 | Haine Ogata v Lindh Gallagher, Emilie | 6-7,6-4,3-6 |
| ITF W15 Cancun | 2019/08/24 14:00 | Contreras Gomez, Fernanda v Haine Ogata | 6-3,7-5 |
| ITF W15 Cancun | 2019/08/23 14:00 | Haine Ogata v Katarina Kozarov | 6-3,6-4 |
| ITF W15 Cancun | 2019/08/22 14:15 | Ingrid Gamarra Martins v Haine Ogata | 2-6,3-6 |
| ITF W15 Cancun | 2019/08/21 20:35 | Haine Ogata v Gomez, Maria | 6-0,6-0 |
| ITF W15 Cancun | 2019/08/15 17:20 | Haine Ogata v Ingrid Gamarra Martins | 6-2,4-6,4-6 |