Stadium: Court 5 Round: 44 Ground: Clay
| ITF W15 Bad Waltersdorf | 2021/08/22 09:00 | Katherine Westbury v Mila Masic | 6-2,6-4 |
| 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 |
| ITF W15 Bad Waltersdorf | 2021/08/23 12:00 | Sara Suchankova v Elena Gemovic | 7-6,6-4 |
| ITF W15 Bad Waltersdorf | 2021/08/22 09:00 | Alina Michalitsch v Sara Suchankova | 3-6,7-5,9-11 |
| ITF W15 Warmbad-Villach | 2021/08/17 07:30 | Sara Suchankova v Kristina Novak | 2-6,2-6 |
| ITF W15 Warmbad-Villach | 2021/08/15 07:00 | Emma Mazzoni v Sara Suchankova | 1-6,6-4,8-10 |
| ITF W15 Bratislava | 2021/08/10 11:00 | Maria F Herazo Gonzalez v Sara Suchankova | 5-7,7-5,6-3 |
| ITF W15 Antalya | 2021/02/21 06:00 | Ilay Yoruk v Sara Suchankova | 7-6,4-6,11-9 |
| ITF W15 Antalya | 2021/01/30 09:15 | Sara Suchankova v Julia Avdeeva | 0-6,1-6 |
| ITF W15 Antalya | 2021/01/29 07:00 | Sara Suchankova v Diana Demidova | 6-4,6-3 |