Stadium: MTA 15 Round: 62 Ground: Clay
| ITF W15 Funchal | 2020/10/11 10:00 | Elena Jamshidi v Ondrejcekova, Klara | 6-0,6-0 |
| ITF W25 Marbella | 2020/08/31 13:00 | Carrillo Marin, Alba v Ondrejcekova, Klara | 6-2,6-1 |
| ITF W25 Trnava | 2020/02/10 08:30 | Ondrejcekova, Klara v Poznikhirenko, Ganna | 2-6,0-6 |
| 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 Villena | 2021/02/10 12:20 | Guttierez Carrasco, Maria v Rossi, Federica | 6-2,6-1 |
| ITF W15 Villena | 2021/02/07 08:30 | Rossi, Federica v Elizabeth Jurna | 6-2,6-2 |
| ITF - W15 Manacor | 2021/01/26 15:00 | Iva Primorac v Rossi, Federica | 5-7,6-1,10-3 |
| ITF - W15 Manacor | 2021/01/26 11:00 | Kareisova, Ludmila v Rossi, Federica | 3-6,1-6 |
| ITF - W15 Manacor | 2021/01/24 13:00 | Margaux Komano v Rossi, Federica | 3-6,2-6 |
| ITF - W15 Manacor | 2021/01/20 14:15 | Rossi, Federica v Alice Rame | 1-6,3-6 |
| ITF - W15 Manacor | 2021/01/19 10:30 | Droguet, Aubane v Rossi, Federica | 1-6,4-6 |
| ITF - W15 Manacor | 2021/01/18 12:30 | Anger, Jenifer v Rossi, Federica | 3-6,6-7 |