Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Malibu | 2023/01/06 18:00 | Karlis Ozolins v Strong Kirchheimer | 6-3,4-6,5-10 |
| ITF M15 South Bend | 2023/06/21 16:30 | Strong Kirchheimer v Jacob Bickersteth | 6-2,6-2 |
| Challenger Palmas del Mar | 2023/06/12 16:35 | Bernard Tomic v Strong Kirchheimer | 7-5,3-6,6-3 |
| Challenger Palmas del Mar | 2023/06/11 20:05 | Gage Brymer v Strong Kirchheimer | 4-6,4-6 |
| Challenger Little Rock | 2023/05/28 17:35 | Colin Markes v Strong Kirchheimer | 5-7,7-6,7-6 |
| Challenger Savannah | 2023/04/24 22:10 | Strong Kirchheimer v Nicolas Kicker | 1-6,1-6 |
| Challenger Tallahassee | 2023/04/18 19:55 | Strong Kirchheimer v Mitchell Krueger | 7-6,2-6,3-6 |
| Challenger Tallahassee | 2023/04/17 14:00 | Strong Kirchheimer v Mac Kiger | 6-3,4-6,6-2 |
| Challenger Sarasota | 2023/04/10 00:35 | Luca Potenza v Strong Kirchheimer | 7-6,6-3 |
| 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 |
| Davis Cup | 2022/09/17 15:10 | Karlis Ozolins v Peter Bertran | 4-6,6-3,3-10 |