Stadium: Court 12 Round: 54 Ground: Hardcourt outdoor
| ITF M15 South Bend | 2023/06/22 17:35 | Strong Kirchheimer v Karlis Ozolins | 6-7,7-6,6-4 |
| ITF M15 South Bend | 2023/06/21 15:00 | John Chin v Karlis Ozolins | 1-6,3-6 |
| Davis Cup | 2023/02/05 13:35 | Karlis Ozolins v Daniel Cukierman | 7-6,2-6,4-6 |
| Davis Cup | 2023/02/04 10:00 | Karlis Ozolins v Edan Leshem | 6-0,6-3 |
| ITF M25 Malibu | 2023/01/06 18:00 | Karlis Ozolins v Strong Kirchheimer | 6-3,4-6,5-10 |
| ITF M25 Malibu | 2023/01/03 19:30 | Jacob Brumm v Karlis Ozolins | 3-6,1-6 |
| ITF M25 Malibu | 2023/01/02 17:00 | Maxwell McKennon v Karlis Ozolins | 3-6,4-6 |
| Challenger Champaign | 2022/11/15 20:50 | Karlis Ozolins v Ben Shelton | 3-6,4-6 |
| ITF M15 Irvine | 2023/06/26 17:00 | Quinn Vandecasteele v Guillaume Dalmasso | 1-6,6-3,10-6 |
| ITF M15 Los Angeles | 2023/06/25 17:55 | Quinn Vandecasteele v Omni Kumar | 4-6,1-6 |
| ITF M15 Los Angeles | 2023/06/24 19:25 | Quinn Vandecasteele v Ryan Seggerman | 6-1,6-4 |
| ITF M15 Los Angeles | 2023/06/23 20:00 | Quinn Vandecasteele v Stefan Dostanic | 6-3,6-1 |
| ITF M15 Los Angeles | 2023/06/22 18:00 | Nathan Ponwith v Quinn Vandecasteele | 3-6,3-6 |
| ITF M15 Los Angeles | 2023/06/21 19:35 | Lorenzo Claverie v Quinn Vandecasteele | 6-4,4-6,3-6 |
| ITF M15 Los Angeles | 2023/06/20 17:00 | Giacomo Revelli v Quinn Vandecasteele | 4-6,6-4,8-10 |
| ITF M15 San Diego | 2023/06/16 16:50 | Blaise Bicknell v Quinn Vandecasteele | 4-6,6-3,6-3 |