| UTR Pro Tennis Series Ricany Women | 2021/09/20 12:00 | Halbauer, Elizabeth v Lucie Zuglerova | 6-3,6-0 |
| ITF W60 Montreux | 2021/09/07 16:45 | Francesca Jones v Halbauer, Elizabeth | 6-2,6-1 |
| ITF W25 Vienna | 2021/09/02 09:25 | Anna Turati v Halbauer, Elizabeth | 3-6,6-3,6-4 |
| ITF W25 Vienna | 2021/08/31 14:20 | Halbauer, Elizabeth v Bibiane Schoofs | 7-6,6-0 |
| ITF W15 Erwitte | 2021/08/18 14:05 | Halbauer, Elizabeth v Aneta Kucmova | 6-2,4-6,1-6 |
| UTR Pro Tennis Series Mulheim Women | 2021/07/31 11:45 | Halbauer, Elizabeth v Almudena S-L Fernandez | 6-3,6-4 |
| UTR Pro Tennis Series Mulheim Women | 2021/07/31 08:30 | Halbauer, Elizabeth v Josy Daems | 2-6,7-6,6-2 |
| UTR Pro Tennis Series Mulheim Women | 2021/07/30 10:00 | Halbauer, Elizabeth v Laura Boehner | 6-1,6-4 |
| UTR Pro Tennis Series Ricany Women | 2021/09/20 07:30 | Bojana Marinkovic v Patricia Hlinkova | 6-1,6-2 |