Stadium: Court 8 Round: 44 Ground: Hardcourt outdoor
| ITF - W15 Monastir | 2021/07/19 10:30 | Pielet, Gianna v Argyrokastriti, Marianne | 6-7,6-3,7-10 |
| ITF - W15 Monastir | 2021/07/18 14:30 | Argyrokastriti, Marianne v Gowda, Vibhasree | 6-0,6-2 |
| ITF - W15 Monastir | 2021/07/12 10:30 | Argyrokastriti, Marianne v Pielet, Gianna | 3-6,6-4,6-10 |
| ITF - W15 Monastir | 2021/07/11 14:00 | Vineetha Mummadi v Argyrokastriti, Marianne | 4-6,1-6 |
| ITF Women Heraklion | 2018/11/12 09:35 | Argyrokastriti, Marianne v Antonitsch, Mira | 6-7,6-7 |
| ITF Women Heraklion | 2018/11/08 07:30 | Argyrokastriti, Marianne v Elina Nepliy | 3-6,2-6 |
| ITF Women Heraklion | 2018/11/07 09:15 | Natalia Siedliska v Argyrokastriti, Marianne | 4-6,2-6 |
| ITF Women Wanfercee-Baulet | 2018/08/20 11:40 | Sinja Kraus v Argyrokastriti, Marianne | 6-1,7-5 |
| ITF - W15 Monastir | 2021/07/19 10:30 | Bourbotte, Zoe v Wiersholm, Katja | 2-6,3-6 |
| ITF - W15 Monastir | 2021/07/18 14:30 | Lexington Reed v Wiersholm, Katja | 2-6,0-6 |
| ITF W25 Sumter | 2021/06/14 13:00 | Erika Sema v Wiersholm, Katja | 7-5,6-1 |
| ITF W25 Santo Domingo | 2021/05/30 17:00 | Mihaela Djakovic v Wiersholm, Katja | 6-3,6-2 |
| ITF W15 Cancun | 2020/03/09 19:30 | Wiersholm, Katja v Pierre-Louis, Kariann | 1-6,1-6 |
| ITF W15 Cancun | 2020/03/09 17:00 | Madison Bourguignon v Wiersholm, Katja | 6-7,3-6 |
| ITF W25 Daytona Beach | 2020/01/12 16:00 | Wiersholm, Katja v Zhang, Yuxuan | 2-6,3-6 |
| Oslo, Singles W-ITF-NOR-02A | 2019/10/21 07:00 | Vehvilainen, Liisa v Wiersholm, Katja | 6-3,4-6,11-9 |