Stadium: Court 10 Round: 54 Ground: Hardcourt outdoor
| 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 |
| UTR Pro Tennis Series California Women | 2021/12/07 22:00 | Klara Kosan v Alexandra Ozerets | 6-4,6-3 |
| UTR Pro Tennis Series California Women | 2021/12/06 22:00 | Priya Nelson v Klara Kosan | 6-0,6-3 |
| UTR Pro Tennis Series California Women | 2021/06/18 15:00 | Eryn Cayetano v Klara Kosan | 7-5,6-3 |
| UTR Pro Tennis Series California Women | 2021/06/16 18:00 | Vivian Ovrootsky v Klara Kosan | 1-6,1-5 |
| ITF W60 Pelham | 2022/05/16 19:25 | Wilkinson, Cydnee v Carrington, Safiya | 5-7,1-6 |