Stadium: Court 15 Round: 14 Ground: Grass
| ITF - W60 Zagreb | 2021/04/30 09:00 | Barbara Haas v Jessica Pieri | 2-6,7-5,1-6 |
| ITF - W25 Denain | 2021/06/16 09:30 | Jessica Pieri v Ylena In-Albon | 6-2,4-6,4-6 |
| ITF - W25 Madrid | 2021/06/12 10:10 | Jessica Pieri v Robin Anderson | 3-6,6-2,1-6 |
| ITF - W25 Madrid | 2021/06/11 08:35 | Rebeka Masarova v Jessica Pieri | 5-7,4-6 |
| ITF - W25 Madrid | 2021/06/10 10:35 | Carole Monnet v Jessica Pieri | 1-6,6-7 |
| ITF - W25 Madrid | 2021/06/09 13:00 | Nastja Kolar v Jessica Pieri | 6-1,2-6,6-7 |
| WTA - Strasbourg | 2021/05/22 09:00 | Evita Ramirez v Jessica Pieri | 3-6,6-4,7-6 |
| WTA - Parma | 2021/05/15 15:00 | Caty McNally v Jessica Pieri | 6-2,7-6 |
| ITF - W60 La Bisbal | 2021/05/14 10:15 | Olga Danilovic v Jessica Pieri | 6-4,6-4 |
| 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 |
| WTA - Bol | 2021/06/07 10:45 | Alexandra Dulgheru v Barbara Haas | 4-6,4-6 |
| French Open - Feminin | 2021/05/24 18:50 | Barbara Haas v Harriet Dart | 4-6,6-4,1-6 |
| ITF - W60 Saint-Gaudens | 2021/05/14 15:00 | Barbara Haas v Anna Bondar | 1-6,7-6,3-6 |
| ITF - W60 Saint-Gaudens | 2021/05/13 14:45 | Barbara Haas v Julia Grabher | 6-4,6-2 |
| ITF - W60 Saint-Gaudens | 2021/05/12 07:00 | Barbara Haas v Selena Janicijevic | 7-6,6-1 |
| ITF - W25 Praga | 2021/05/06 08:00 | Anna Bondar v Barbara Haas | 6-4,3-6,6-4 |