Stadium: Court 2 Round: 54 Ground: Hardcourt indoor
| St. Pölten, Qualifications Simples W-ITF-AUT-01B | 2019/09/08 07:30 | Olivia Gram v Ondrejcekova, Klara | 6-3,1-6,10-8 |
| ITF W25 Marbella | 2019/09/03 09:40 | Angela Fita Boluda v Ondrejcekova, Klara | 6-2,6-0 |
| Olomouc, Singles Qualifying W-ITF-CZE-07A | 2019/08/05 11:00 | Ondrejcekova, Klara v Mironova, Anastasia | 2-6,1-6 |
| ITF W15 Budapest | 2019/06/24 08:00 | Ondrejcekova, Klara v Haseth, Lilly Elida | 6-7,4-6 |
| ITF W15 Tucepi | 2019/05/08 07:30 | Kareisova, Ludmila v Ondrejcekova, Klara | 4-6,6-0,6-3 |
| ITF W15 Tucepi | 2019/05/07 13:35 | Farbas, Reka v Ondrejcekova, Klara | 3-6,1-6 |
| ITF - W15 Antalya | 2019/03/06 10:15 | Ondrejcekova, Klara v Ovunc, Selin | 7-5,2-6,1-6 |
| ITF - W15 Antalya | 2019/03/05 07:30 | Bergen, Mariia v Ondrejcekova, Klara | 4-6,1-6 |
| ITF W25 Trnava | 2020/02/05 11:40 | Vera Zvonareva v Poznikhirenko, Ganna | 6-0,6-0 |
| ITF W25 Trnava | 2020/02/04 08:30 | Rosca, Ioana Loredana v Poznikhirenko, Ganna | 7-6,6-3 |
| ITF W25 Trnava | 2020/02/03 14:00 | Milkova, Barbora v Poznikhirenko, Ganna | 6-1,3-6,8-10 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/11/03 09:00 | Steur, Julyette Maria Josephine v Poznikhirenko, Ganna | 4-6,1-6 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/11/02 10:00 | Sada Nahimana v Poznikhirenko, Ganna | 4-6,1-6 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/11/01 17:00 | Adithya Karunaratne v Poznikhirenko, Ganna | 3-6,2-6 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/10/31 11:25 | Jocovic, Andjela v Poznikhirenko, Ganna | 2-6,4-6 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/10/28 09:00 | Steur, Julyette Maria Josephine v Poznikhirenko, Ganna | 6-2,3-6,4-6 |