| ITF M15 Cancun | 2020/02/19 14:00 | Stefan Leustian v Matic Spec | 5-7,5-7 |
| ITF M25 Fort Worth | 2019/10/20 15:00 | Stefan Leustian v Ronald Hohmann | 4-6,6-7 |
| ITF USA F24 | 2018/09/10 17:00 | Stefan Leustian v Nicolas Moreno De Alboran | 3-6,2-6 |
| ITF USA F24 | 2018/09/09 18:00 | George Goldhoff v Stefan Leustian | 6-2,5-7,6-7 |
| ITF USA F24 | 2018/09/07 17:30 | Stefan Leustian v Kaptan Kaster | 6-2,6-2 |
| ITF USA F7 Qual | 2018/03/11 17:00 | Stefan Leustian v Tyler Lu | 6-7,6-7 |
| ITF USA F7 | 2017/02/10 20:00 | Drew Baird v Stefan Leustian | 6-3,6-1 |
| UTR Pro Tennis Series California | 2021/07/25 18:12 | Quinn Vandecasteele v Jett Middleton | 6-1,6-6 |
| UTR Pro Tennis Series California | 2021/07/23 18:00 | Alessandro-D Ventre v Quinn Vandecasteele | 6-1,5-2 |
| UTR Pro Tennis Series California | 2021/07/20 16:30 | Spencer Johnson v Quinn Vandecasteele | 2-6,6-7 |
| UTR Pro Tennis Series California | 2021/07/19 21:30 | Samuel Rubell v Quinn Vandecasteele | 5-7,7-6,1-6 |
| UTR Pro Tennis Series California | 2021/07/18 20:15 | Quinn Vandecasteele v Nathan Han | 6-2,5-1 |
| UTR Pro Tennis Series Nevada | 2021/07/04 15:00 | Eric Hadigian v Quinn Vandecasteele | 3-6,4-6 |
| UTR Pro Tennis Series Nevada | 2021/07/03 17:00 | Brandon Stringfellow v Quinn Vandecasteele | 2-6,1-5 |
| UTR Pro Tennis Series Nevada | 2021/07/01 16:30 | Quinn Vandecasteele v Michael Andre | 7-5,6-3 |