Stadium: Court 03 Round: 27 Ground: Clay
| ITF W15 Warmbad-Villach | 2021/08/19 08:00 | Romana Cisovska v Katarina Kuzmova | 1-6,6-2,6-7 |
| ITF W15 Warmbad-Villach | 2021/08/18 10:45 | Naima Karamoko v Katarina Kuzmova | 6-3,1-6,1-6 |
| ITF W15 Bratislava | 2021/08/11 08:00 | Katarina Kuzmova v Elena Malygina | 2-6,2-6 |
| ITF W15 Prokuplje | 2021/07/06 09:00 | Victoria Mboko v Katarina Kuzmova | 6-2,5-7,6-1 |
| ITF W15 Prokuplje | 2021/06/29 09:20 | Katarina Kuzmova v Ana L De La Nuez | 5-7,4-6 |
| ITF W15 Banja Luka | 2021/06/01 14:35 | Dorka Drahota Szabo v Katarina Kuzmova | 6-1,6-3 |
| ITF W15 Antalya | 2021/05/10 07:00 | Katarina Kuzmova v Selina Atay | 6-1,6-3 |
| ITF W15 Antalya | 2021/05/06 06:55 | Katarina Kuzmova v Misaki Matsuda | 0-6,1-6 |
| ITF W15 Warmbad-Villach | 2021/08/19 10:25 | Mavie Osterreicher v Yeon Woo Ku | 2-6,3-6 |
| ITF W15 Warmbad-Villach | 2021/08/17 10:30 | Yeon Woo Ku v Deborah Chiesa | 5-7,6-3,6-0 |
| ITF W15 Almada | 2021/07/17 11:10 | Georgia Drummy v Yeon Woo Ku | 7-5,6-2 |
| ITF W15 Almada | 2021/07/16 08:30 | Lucie Nguyen Tan v Yeon Woo Ku | 3-6,2-6 |
| ITF W15 Almada | 2021/07/15 08:30 | Laia Conde Monfort v Yeon Woo Ku | 0-6,2-6 |
| ITF W15 Almada | 2021/07/13 10:00 | Yeon Woo Ku v Himari Sato | 6-1,6-3 |
| ITF W15 Sharm El Sheikh | 2021/03/25 08:40 | Joanne Zuger v Yeon Woo Ku | 6-4,6-3 |
| ITF W15 Sharm El Sheikh | 2021/03/24 14:40 | Yeon Woo Ku v Elizabeth Mandlik | 6-4,6-2 |