Stadium: Court 9 Round: 25 Ground: Clay
| ITF W25 Braunschweig | 2019/08/19 08:00 | Wachaczyk, Julia v Hering, Katharina | 6-2,6-4 |
| Oldenzaal, Singles W-ITF-NED-03A | 2019/08/14 12:35 | Manon Leonard v Hering, Katharina | 7-6,7-6 |
| ITF W15 Knokke | 2019/08/02 10:30 | Djoubri, Salma v Hering, Katharina | 7-6,3-6,6-2 |
| ITF W15 Knokke | 2019/08/01 10:20 | Hering, Katharina v Orpana, Oona | 6-2,6-2 |
| ITF W15 Knokke | 2019/07/30 09:50 | Mareen, Axana v Hering, Katharina | 1-6,4-6 |
| ITF W25 Horb | 2019/07/24 13:15 | Hering, Katharina v Manon Leonard | 6-4,5-7,4-6 |
| ITF W25 Horb | 2019/07/23 11:50 | Rina Saigo v Hering, Katharina | 1-6,6-4,4-10 |
| ITF W25 Horb | 2019/07/22 14:00 | Kimmelmann, Julia v Hering, Katharina | 4-6,6-7 |
| 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 |
| Gimcheon, Singles Qualifying W-ITF-KOR-05A | 2019/06/20 03:45 | Yidi Yang v Olga Helmi | 6-7,6-4,3-6 |
| Gimcheon, Singles Qualifying W-ITF-KOR-05A | 2019/06/18 05:10 | Koike, Satsuki v Olga Helmi | 6-7,4-6 |
| Gimcheon, Singles Qualifying W-ITF-KOR-05A | 2019/06/13 03:10 | Olga Helmi v Eunhye Lee | 2-6,4-6 |
| Gimcheon, Singles Qualifying W-ITF-KOR-05A | 2019/06/11 05:00 | Jeong, Yeong Won v Olga Helmi | 4-6,2-6 |
| ITF - W15 Antalya | 2019/04/24 07:00 | Olga Helmi v Eliessa Vanlangendonck | 5-7,1-6 |