Stadium: Court 7 Round: 54 Ground: Hardcourt outdoor
| ITF W80 Tyler | 2021/10/25 17:10 | Elvina Kalieva v Alexandra Osborne | 7-6,2-6,4-10 |
| ITF W60 Rancho Santa Fe | 2021/10/11 17:35 | Alexandra Osborne v Ashley Lahey | 4-6,4-6 |
| ITF W25 Redding | 2021/10/06 23:20 | Dalila Jakupovic v Alexandra Osborne | 6-0,6-3 |
| ITF W25 Redding | 2021/10/05 19:00 | Alexandra Osborne v Isabelle Bahr | 6-2,6-1 |
| ITF W60 Berkeley | 2021/09/27 20:15 | Haley Giavara v Alexandra Osborne | 6-3,2-6,10-8 |
| ITF W25 Fort Worth | 2021/09/21 14:00 | Alexandra Osborne v Katarina Jokic | 6-1,3-6,6-10 |
| ITF W25 Fort Worth | 2021/09/20 14:00 | Alexandra Osborne v Alina Shcherbinina | 7-5,6-3 |
| ITF W25 Jablonec nad Nisou | 2021/09/15 12:30 | Marketa Petruzelova v Alexandra Osborne | 6-4,6-2 |
| ITF W80 Tyler | 2021/10/25 16:40 | Katarina Kozarov v Dalayna Hewitt | 6-3,6-7,10-8 |
| ITF W25 Florence | 2021/10/12 15:20 | Katarina Kozarov v Alana Smith | 6-3,1-6,8-10 |
| UTR Pro Tennis Series Florida Women | 2021/09/16 16:30 | Katarina Kozarov v Anais Gabriel | 6-4,5-1 |
| UTR Pro Tennis Series Florida Women | 2021/09/15 12:00 | Katarina Kozarov v Stephanie Kent | 6-3,6-1 |
| ITF W25 Vigo | 2021/08/25 14:30 | Alba Carrillo Marin v Katarina Kozarov | 7-6,6-1 |
| ITF W25 Vigo | 2021/08/24 09:55 | Sowjanya Bavisetti v Katarina Kozarov | 2-6,2-6 |
| ITF W25 Ourense | 2021/08/17 07:55 | Jaimee Fourlis v Katarina Kozarov | 7-5,6-2 |
| ITF W25 Ourense | 2021/08/16 09:50 | Emilie L Gallagher v Katarina Kozarov | 6-3,6-7,8-10 |