Stadium: Court 12 Round: 54 Ground: Hardcourt outdoor
| ITF W15 Rancho Santa Fe | 2022/06/02 17:30 | Klara Kosan v Jiangxue Han | 1-6,2-6 |
| ITF W15 Rancho Santa Fe | 2022/06/01 17:40 | Klara Kosan v Prathyusha Rachapudi | 6-2,1-6,6-1 |
| ITF W15 Rancho Santa Fe | 2022/05/31 16:00 | Saniya Singh v Klara Kosan | 0-6,5-7 |
| ITF W15 Rancho Santa Fe | 2022/05/30 09:00 | Klara Kosan v Cydnee Wilkinson | 6-2,6-2 |
| UTR Pro Tennis Series California Women | 2021/12/12 17:30 | Marley Lambert v Klara Kosan | 0-6,6-7 |
| UTR Pro Tennis Series California Women | 2021/12/11 17:30 | Allison Lian v Klara Kosan | 2-6,7-5,2-6 |
| UTR Pro Tennis Series California Women | 2021/12/10 21:00 | Klara Kosan v Dania Deaifi | 5-7,6-7 |
| UTR Pro Tennis Series California Women | 2021/12/08 19:14 | Klara Kosan v Brandy Walker | 3-6,0-6 |
| ITF W60 Arcadia | 2023/03/01 19:00 | Olivia Center v Diane Parry | 1-6,1-6 |
| UTR Pro California Women | 2023/02/18 18:00 | Georgia Cranford v Olivia Center | 4-6,6-3,0-0 |
| UTR Pro California Women | 2023/02/16 20:02 | Ellie Gyuro v Olivia Center | 7-6,0-6,1-6 |
| UTR Pro California Women | 2023/02/14 18:00 | Brittany Collens v Olivia Center | 2-6,2-6 |
| UTR Pro California Women | 2023/02/13 23:15 | Olivia Center v Megan McCray | 6-7,3-5 |
| UTR Pro Tennis Series Lawrence Women | 2022/09/12 17:30 | Florentine Dekkers v Olivia Center | 6-7,6-3,4-6 |