Stadium: Court 3 Round: 54 Ground: Hardcourt indoor
| ITF W25 Seville | 2021/10/19 08:30 | Diana Marcinkevica v Yeon Woo Ku | 3-6,6-1,7-6 |
| ITF W15 Sozopol | 2021/10/16 09:30 | Martha Matoula v Yeon Woo Ku | 2-6,6-3,6-3 |
| ITF W15 Sozopol | 2021/10/15 08:30 | Oceane Babel v Yeon Woo Ku | 1-6,5-7 |
| ITF W15 Sozopol | 2021/10/14 13:35 | Noel Saidenova v Yeon Woo Ku | 1-6,4-6 |
| ITF W15 Sozopol | 2021/10/10 07:00 | Yeon Woo Ku v Julia Terziyska | 6-4,6-2 |
| ITF W15 Sozopol | 2021/10/09 07:00 | Anna Brogan v Yeon Woo Ku | 1-6,4-6 |
| ITF W15 Sozopol | 2021/10/08 07:00 | Yeon Woo Ku v Sofia Nami Samavati | 6-0,6-2 |
| ITF W15 Sozopol | 2021/10/07 08:00 | Yeon Woo Ku v Mihaela Tsoneva | 6-2,6-1 |