| 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 | Evan Song v Colton Smith | 6-1,6-3 |
| UTR Pro Tennis Series Nevada | 2021/06/21 16:30 | Paul Barretto 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 | JC Aragone 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 | 2021/05/24 19:30 | Oleksiy Arovin v Colton Smith | 0-6,4-5 |
| UTR Pro Tennis Series Nevada | 2021/06/24 16:30 | Nicholas Heng v Alfredo Perez | 6-4,4-6,3-6 |
| UTR Pro Tennis Series Nevada | 2021/06/23 16:30 | Nicholas Heng v Nicolas Barrientos | 3-6,2-6 |
| UTR Pro Tennis Series Nevada | 2021/06/22 18:00 | Nicholas Heng v Kyle Kang | 5-7,3-6 |
| UTR Pro Tennis Series Nevada | 2021/06/21 15:00 | Nicholas Heng v Alexander Stater | 0-6,6-3,6-3 |
| UTR Pro Tennis Series California | 2021/05/27 16:30 | Connor Farren v Nicholas Heng | 6-2,5-4 |
| UTR Pro Tennis Series California | 2021/05/26 18:00 | Nicholas Heng v JC Aragone | 4-6,5-6 |
| UTR Pro Tennis Series California | 2021/05/25 16:30 | Nicholas Heng v Lawee Sherif | 4-6,6-2,5-1 |
| UTR Pro Tennis Series California | 2021/05/24 19:30 | Drew Baird v Nicholas Heng | 6-3,6-4 |