| ITF W15 Monastir | 2021/11/09 12:00 | Anouk Koevermans v Katherine Westbury | 6-4,6-3 |
| ITF W15 Monastir | 2021/11/04 10:50 | Luksika Kumkhum v Katherine Westbury | 7-6,6-4 |
| ITF W15 Monastir | 2021/11/02 08:30 | Katherine Westbury v Alessandra Simone | 6-4,6-1 |
| ITF W15 Monastir | 2021/11/01 10:30 | Katherine Westbury v Selya Rakki | 6-0,6-1 |
| ITF W15 Monastir | 2021/10/31 13:30 | Katherine Westbury v Sarah Iliev | 6-4,6-3 |
| ITF W25 Istanbul | 2021/10/24 10:55 | Arlinda Rushiti v Katherine Westbury | 6-3,7-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/09 08:30 | Katherine Westbury v Sapfo Sakellaridi | 3-6,2-5 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/08 14:30 | Gloria Alogo Piqueras v Katherine Westbury | 4-6,3-5 |
| UTR Pro Tennis Series Sofia Women | 2021/09/02 08:30 | Sara Mikaca v Almudena S-L Fernandez | 7-6,6-3 |
| UTR Pro Tennis Series Sofia Women | 2021/09/01 09:30 | Daria Lodikova v Almudena S-L Fernandez | 6-0,5-2 |
| UTR Pro Tennis Series Sofia Women | 2021/08/31 08:00 | Anna Morgina v Almudena S-L Fernandez | 2-6,6-4,6-1 |
| UTR Pro Tennis Series Sofia Women | 2021/08/29 15:00 | Martina Gledacheva v Almudena S-L Fernandez | 5-7,0-6 |
| UTR Pro Tennis Series Mulheim Women | 2021/07/31 11:45 | Elizabeth Halbauer v Almudena S-L Fernandez | 6-3,6-4 |
| UTR Pro Tennis Series Mulheim Women | 2021/07/30 16:30 | Almudena S-L Fernandez v Anita Husaric | 6-1,6-2 |
| UTR Pro Tennis Series Mulheim Women | 2021/07/30 08:00 | Almudena S-L Fernandez v Lexie Stevens | 4-6,2-6 |
| UTR Pro Tennis Series Mulheim Women | 2021/07/29 11:30 | Almudena S-L Fernandez v Laura Rijkers | 7-5,6-2 |