| UTR Pro Tennis Series California | 2021/07/19 18:00 | Spencer Johnson v Nathan Han | 5-7,6-1,6-5 |
| UTR Pro Tennis Series California | 2021/07/18 18:45 | Spencer Johnson v Samuel Rubell | 6-3,6-7,6-6 |
| UTR Pro Tennis Series California | 2021/05/30 15:00 | Spencer Johnson v Aaron Bailey | 6-0,5-4 |
| UTR Pro Tennis Series California | 2021/05/29 15:00 | Sema Pankin v Spencer Johnson | 6-2,5-7,5-6 |
| UTR Pro Tennis Series California | 2021/05/27 16:30 | Rudy Quan v Spencer Johnson | 2-6,6-4,3-6 |
| UTR Pro Tennis Series California | 2021/05/26 16:30 | Joshua Ortlip v Spencer Johnson | 6-4,5-4 |
| UTR Pro Tennis Series California | 2021/05/25 21:00 | Gabriel Evans v Spencer Johnson | 3-6,2-6 |
| UTR Pro Tennis Series California | 2021/05/24 19:30 | Spencer Johnson v Alexander Stater | 6-4,5-7,6-7 |
| 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 |
| UTR Pro Tennis Series Nevada | 2021/06/30 19:30 | Quinn Vandecasteele v Justin Boulais | 3-6,2-6 |
| UTR Pro Tennis Series Nevada | 2021/06/29 15:00 | Quinn Vandecasteele v Jordan Sauer | 6-3,5-2 |
| UTR Pro Tennis Series Nevada | 2021/06/28 18:00 | Quinn Vandecasteele v Tim Dzhurinskiy | 3-6,6-3,1-6 |