Stadium: Center Round: 26 Ground: Clay
| ITF W60 Hechingen | 2019/08/10 14:30 | Barbara Haas v Lea Boskovic | 4-6,7-6,6-3 |
| ITF W60 Amstelveen | 2021/07/07 14:10 | Jaimee Fourlis v Lea Boskovic | 4-6,4-6 |
| ITF W25 The Hague | 2021/07/01 07:30 | Arianne Hartono v Lea Boskovic | 6-4,6-3 |
| ITF W25 Denain | 2021/06/16 13:45 | Lea Boskovic v Chloe Paquet | 0-6,6-1,3-6 |
| ITF W25 Otocec | 2021/06/06 07:50 | Lea Boskovic v Maryna Zanevska | 6-7,0-6 |
| ITF W25 Otocec | 2021/06/05 08:00 | Iva Primorac v Lea Boskovic | 6-2,0-6,0-6 |
| ITF W25 Otocec | 2021/06/04 11:10 | Anna Bondar v Lea Boskovic | 3-6,6-4,1-6 |
| ITF W25 Otocec | 2021/06/03 09:35 | Nina Potocnik v Lea Boskovic | 6-0,0-6,2-6 |
| ITF W25 Otocec | 2021/06/02 10:15 | Lea Boskovic v Jana Fett | 4-6,6-2,6-1 |
| ITF W60 Amstelveen | 2021/07/07 09:30 | Tayisiya Morderger v Barbara Haas | 6-0,5-7,3-6 |
| Austrian Tennis Championship Women | 2021/07/02 09:30 | Barbara Haas v Yvonne Neuwirth | 4-6,6-0,2-6 |
| Austrian Tennis Championship Women | 2021/07/01 09:30 | Barbara Haas v Veronika Bokor | 6-2,6-2 |
| Austrian Tennis Championship Women | 2021/06/30 13:00 | Barbara Haas v Eva Nyikos | 6-0,2-6,6-0 |
| Wimbledon Women | 2021/06/24 10:00 | Barbara Haas v Tereza Smitkova | 6-7,3-6 |
| Wimbledon Women | 2021/06/23 10:00 | Jessica Pieri v Barbara Haas | 4-6,6-2,0-6 |
| WTA Bol | 2021/06/10 08:30 | Anna Blinkova v Barbara Haas | 6-4,4-6,7-5 |
| WTA Bol | 2021/06/09 08:30 | Barbara Haas v Ludmilla Samsonova | 6-3,6-4 |