Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Pittsburgh | 2023/07/26 14:00 | Samir Banerjee v Thomas Brown | 6-3,6-4 |
| ITF M15 Rochester | 2023/07/19 14:30 | Ignacio Monzon v Thomas Brown | 6-0,6-7,7-5 |
| ITF M25 Santo Domingo | 2023/06/28 17:10 | Taha Baadi v Thomas Brown | 4-6,6-2,6-1 |
| ITF M15 Santo Domingo | 2023/06/22 13:30 | Tyler Stice v Thomas Brown | 7-6,6-4 |
| ITF M15 Santo Domingo | 2023/06/20 18:00 | Thomas Brown v Elio Jose Ribeiro Lago | 6-4,6-2 |
| ITF M25 Xalapa | 2023/05/17 00:50 | Jake Van Emburgh v Thomas Brown | 6-4,6-4 |
| ITF M25 Xalapa | 2023/05/15 23:45 | Thomas Brown v Nikolas Moceanu | 6-2,6-2 |
| ITF M15 Orange Park | 2023/05/02 15:30 | Thomas Brown v Govind Nanda | 6-7,6-2,3-6 |
| ITF M25 Edwardsville | 2023/07/24 14:00 | Karlis Ozolins v Daniel Milavsky | 3-6,3-6 |
| ITF M25 Champaign | 2023/07/19 14:55 | Karlis Ozolins v Naoki Nakagawa | 3-6,0-6 |
| 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 |