Stadium: Court 1 Round: 44 Ground: Clay
| ITF W25 Oldenzaal | 2021/08/16 16:15 | Elena Malygina v Katherine Westbury | 6-3,7-6 |
| UTR Pro Tennis Series Adelaide Women | 2021/06/02 00:30 | Jade Otway v Katherine Westbury | 0-0 |
| UTR Pro Tennis Series Adelaide Women | 2021/06/01 02:30 | Sarah Munroe v Katherine Westbury | 1-6,0-6 |
| UTR Pro Tennis Series Adelaide Women | 2021/05/29 04:00 | Katherine Westbury v Belinda Woolcock | 1-6,2-3 |
| UTR Pro Tennis Series Adelaide Women | 2021/05/28 03:30 | Alana Parnaby v Katherine Westbury | 6-1,3-6,2-6 |
| UTR Pro Tennis Series Adelaide Women | 2021/05/27 23:30 | Juliette Robinson v Katherine Westbury | 0-6,0-5 |
| UTR Pro Tennis Series Adelaide Women | 2021/05/26 02:30 | Amy Stevens v Katherine Westbury | 2-6,6-4,5-7 |
| UTR Pro Tennis Series Adelaide Women | 2021/05/23 23:30 | Mia Tsoukalas v Katherine Westbury | 0-6,0-6 |
| ITF W25 Otocec | 2021/05/30 08:00 | Mila Masic v Nastasja Schunk | 1-6,0-6 |
| ITF W15 Antalya | 2021/05/24 07:00 | Mila Masic v Lexington Reed | 0-6,3-6 |
| ITF W15 Antalya | 2021/05/23 07:30 | Iva Divac v Mila Masic | 6-4,0-6,5-10 |
| ITF Women Vienna | 2018/07/14 12:00 | Eva Cechakova v Mila Masic | 6-1,6-2 |
| ITF Women Vienna | 2018/07/14 07:00 | Mila Masic v Therese Ekdahl | 6-1,6-1 |
| ITF Women Maribor Qual | 2018/06/10 12:00 | Adrijana Lekaj v Mila Masic | 6-3,6-2 |
| ITF Women Maribor Qual | 2018/06/09 11:50 | Mila Masic v Katarina Zuzul | 3-6,6-3,6-1 |
| ITF Women Antalya | 2017/11/11 06:45 | Anastasiia Poplavska v Mila Masic | 6-3,6-2 |