| UTR Pro Tennis Series Ricany Women | 2021/06/24 08:00 | Karolina Kubanova v Nelly Knezkova | 3-4 |
| UTR Pro Tennis Series Ricany Women | 2021/06/23 09:30 | Sarka Richterova v Nelly Knezkova | 6-4,6-5 |
| UTR Pro Tennis Series Ricany Women | 2021/06/21 11:00 | Veronika Vlkovska v Nelly Knezkova | 7-5,5-2 |
| ITF W15 Sibenik | 2021/05/25 09:40 | Mina Hodzic v Nelly Knezkova | 6-3,5-7,10-3 |
| ITF W15 Sibenik | 2021/05/24 12:40 | Nelly Knezkova v Ingrid Vojcinakova | 6-0,6-3 |
| ITF W15 Sibenik | 2021/05/23 10:30 | Nelly Knezkova v Ema Bolebruchova | 6-2,6-2 |
| ITF W15 Antalya | 2021/01/11 07:00 | Adrienn Nagy v Nelly Knezkova | 6-3,6-2 |
| ITF W15 Antalya | 2021/01/10 09:30 | Defne Cirpanli v Nelly Knezkova | 2-6,6-1,4-10 |
| UTR Pro Tennis Series Ricany Women | 2021/06/25 11:30 | Jana Kareisova v Ludmila Kareisova | 1-6,6-6 |
| UTR Pro Tennis Series Ricany Women | 2021/06/24 09:30 | Katerina Filip v Ludmila Kareisova | 2-6,1-6 |
| UTR Pro Tennis Series Ricany Women | 2021/06/23 11:00 | Nastja Kolar v Ludmila Kareisova | 6-4,5-1 |
| UTR Pro Tennis Series Ricany Women | 2021/06/21 09:30 | Denisa Pospisilova v Ludmila Kareisova | 6-0,6-5 |
| ITF W15 Antalya | 2021/03/30 07:00 | Ekaterina Ovcharenko v Ludmila Kareisova | 6-3,2-6,10-7 |
| ITF W15 Antalya | 2021/03/29 07:00 | Yarden Akler v Ludmila Kareisova | 6-3,2-6,6-10 |
| ITF W15 Antalya | 2021/03/28 09:00 | Ludmila Kareisova v Anastasiia Poplavska | 6-0,1-6,13-11 |
| ITF W15 Antalya | 2021/03/21 07:00 | Lucia Cortez Llorca v Ludmila Kareisova | 6-2,4-6,10-1 |