Stadium: Court 10 Round: 25 Ground: Hardcourt outdoor
| ITF W15 Santo Domingo | 2024/06/07 15:00 | Ana C Zamburek v Katja Wiersholm | 7-5,3-6,10-7 |
| ITF W15 Santo Domingo | 2024/06/06 13:30 | Katja Wiersholm v Savanna Ly-Nguyen | 6-2,6-2 |
| ITF W25 Austin | 2023/11/15 20:00 | Ashley Lahey v Katja Wiersholm | 6-4,5-7,6-1 |
| ITF W25 Austin | 2023/11/14 17:40 | Katja Wiersholm v Vivian Ovrootsky | 6-2,7-5 |
| ITF W25 Austin | 2023/11/13 18:00 | Yujia Huang v Katja Wiersholm | 6-7,2-6 |
| ITF W25 Redding | 2023/10/04 17:00 | Hanna Chang v Katja Wiersholm | 6-0,6-3 |
| ITF W25 Redding | 2023/10/03 19:50 | Katja Wiersholm v Alyssa Ahn | 6-3,6-2 |
| ITF W25 Redding | 2023/10/02 17:00 | Martyna Ostrzygalo v Katja Wiersholm | 5-7,3-6 |
| ITF W15 Santo Domingo | 2024/06/11 13:00 | Kallista Liu v Marian G P Cano | 6-1,6-0 |
| ITF W15 Santo Domingo | 2024/06/10 09:00 | Love-Star Alexis v Kallista Liu | 1-6,1-6 |
| ITF W35 Bethany Beach | 2024/05/14 13:25 | Kallista Liu v Jane Dunyon | 2-6,1-6 |
| ITF W35 Bethany Beach | 2024/05/13 16:00 | Patsy Daughters v Kallista Liu | 6-7,5-7 |
| ITF W25 Florence | 2023/10/10 18:00 | Kallista Liu v Raveena Kingsley | 4-6,2-6 |
| UTR Pro Columbus Women | 2023/08/20 13:00 | Isabelle Boulais v Kallista Liu | 6-4,5-3 |
| UTR Pro Columbus Women | 2023/08/19 13:00 | Emily Gelber v Kallista Liu | 2-6,6-7 |
| UTR Pro Columbus Women | 2023/08/17 18:28 | Kallista Liu v Irina Cantos Siemers | 2-6,1-6 |