| UTR Pro Tennis Series Nevada | 2021/06/26 16:45 | Colton Smith v Nicholas Heng | 6-3,5-4 |
| UTR Pro Tennis Series Nevada | 2021/06/25 16:30 | Murphy Cassone v Colton Smith | 6-3,5-3 |
| UTR Pro Tennis Series Nevada | 2021/06/24 18:00 | Alejandro Quiles v Colton Smith | 2-6,1-6 |
| UTR Pro Tennis Series Nevada | 2021/06/23 15:00 | Song, Evan v Colton Smith | 6-1,6-3 |
| UTR Pro Tennis Series Nevada | 2021/06/21 16:30 | Barretto, Paul v Colton Smith | 6-4,6-4 |
| UTR Pro Tennis Series California | 2021/05/29 16:30 | Colton Smith v Kyle Kang | 5-7,3-6 |
| UTR Pro Tennis Series California | 2021/05/28 18:00 | Aragone, JC v Colton Smith | 4-6,6-4,4-5 |
| UTR Pro Tennis Series California | 2021/05/25 20:15 | Julian Steinhausen v Colton Smith | 2-6,6-3,6-7 |
| UTR Pro Tennis Series California | 2021/07/18 16:30 | Aryan Chaudhary v Rudy Quan | 6-1,6-3 |