Stadium: Court 17 Round: 27 Ground: Clay
| ITF W60 Zagreb | 2021/04/29 08:00 | Barbara Haas v Tara Wurth | 6-3,6-4 |
| ITF W60 Zagreb | 2021/04/27 09:00 | Barbara Haas v Cristina Bucsa | 6-7,6-1,6-2 |
| WTA Istanbul | 2021/04/20 08:00 | Kristina Mladenovic v Barbara Haas | 6-4,6-3 |
| WTA Istanbul | 2021/04/18 10:25 | Barbara Haas v Nuria Parrizas-Diaz | 6-2,1-6,0-6 |
| WTA Istanbul | 2021/04/17 15:10 | Barbara Haas v Zeynep Sonmez | 6-3,7-5 |
| WTA Dubai | 2021/03/06 07:55 | Gabriela Dabrowski v Barbara Haas | 6-2,2-6,3-6 |
| WTA Lyon | 2021/02/28 09:00 | Barbara Haas v Giulia Gatto Monticone | 6-2,3-6,3-6 |
| WTA Lyon | 2021/02/27 09:00 | Barbara Haas v Lois Boisson | 3-6,6-2,7-5 |
| ITF W60 Zagreb | 2021/04/29 08:00 | Jessica Pieri v Elena-Gabriela Ruse | 4-6,7-6,6-3 |
| ITF W60 Zagreb | 2021/04/28 09:40 | Jessica Pieri v Martina Di Giuseppe | 2-6,6-2,6-2 |
| ITF W60 Zagreb | 2021/04/26 09:40 | Na-Lae Han v Jessica Pieri | 3-6,1-6 |
| ITF W60 Zagreb | 2021/04/25 10:00 | Alice Rame v Jessica Pieri | 5-7,2-6 |
| ITF W25 Calvi | 2021/04/16 13:55 | Jessica Pieri v Susan Bandecchi | 2-6,2-6 |
| ITF W25 Calvi | 2021/04/15 12:30 | Jessica Pieri v Clothilde De Bernardi | 4-6,6-3,6-1 |
| ITF W25 Calvi | 2021/04/13 14:05 | Jessica Pieri v Julie Belgraver | 6-2,6-4 |
| ITF W25 Manacor | 2021/03/05 10:00 | Jessica Pieri v Jana Fett | 6-3,6-4 |