Stadium: Court 2 Round: 54 Ground: Clay
| ITF W25 Florence | 2021/10/13 15:40 | Contreras Gomez, Fernanda v Wiersholm, Katja | 7-6,6-3 |
| ITF W25 Florence | 2021/10/12 15:20 | Lauren Proctor v Wiersholm, Katja | 1-6,3-6 |
| ITF W25 Florence | 2021/10/11 17:00 | Maria Kononova v Wiersholm, Katja | 6-7,4-6 |
| ITF W15 Hilton Head | 2021/10/09 17:00 | Wiersholm, Katja v Ania Hertel | 2-6,1-6 |
| ITF W15 Hilton Head | 2021/10/09 13:00 | Wiersholm, Katja v Ruckno, Emily | 6-0,6-0 |
| ITF W15 Hilton Head | 2021/10/07 14:20 | Kissell, Joelle v Wiersholm, Katja | 5-7,4-6 |
| ITF W15 Hilton Head | 2021/10/07 13:00 | Kissell, Joelle v Wiersholm, Katja | 5-7,4-5 |
| ITF - W15 Monastir | 2021/07/28 09:55 | Wiersholm, Katja v Katarina Kozarov | 1-6,2-6 |
| ITF W25 Austin | 2021/10/25 16:00 | Livianu, Jessica v Alicia Herrero Linana | 2-6,6-7 |
| ITF W25 Fort Worth | 2021/09/21 14:00 | Livianu, Jessica v Rasheeda McAdoo | 1-6,2-6 |
| ITF W25 Fort Worth | 2021/09/20 14:00 | Livianu, Jessica v Miyamoto, Ayumi | 6-0,6-4 |
| UTR Pro Tennis Series New York Women | 2021/08/29 13:30 | Livianu, Jessica v Makarova, Tatiana | 7-5,5-7,0-5 |
| UTR Pro Tennis Series New York Women | 2021/08/28 16:00 | Graham, Alexa v Livianu, Jessica | 3-6,7-6,4-6 |
| UTR Pro Tennis Series New York Women | 2021/08/26 18:30 | Theadora Rabman v Livianu, Jessica | 1-6,1-6 |
| UTR Pro Tennis Series New York Women | 2021/08/26 15:30 | Livianu, Jessica v Daria Smetannikov | 6-2,4-6,7-6 |
| UTR Pro Tennis Series New York Women | 2021/08/25 17:00 | Nathalie Rodilosso v Livianu, Jessica | 1-6,0-6 |