| UTR Pro Tennis Series California | 2021/11/09 16:00 | Nicholas Heng v Maciej Rajski | 4-6,0-0 |
| UTR Pro Tennis Series California | 2021/11/08 20:30 | Nicholas Heng v Corrado Summaria | 6-0,6-1 |
| UTR Pro Tennis Series Nevada | 2021/06/26 16:45 | Colton Smith v Nicholas Heng | 6-3,5-4 |
| UTR Pro Tennis Series Nevada | 2021/06/24 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 | 2021/11/08 17:30 | Arthur Bellegy v Maciej Rajski | 4-6,2-5 |
| UTR Pro Tennis Series California | 2021/10/14 16:30 | Arthur Bellegy v Manuel S Montemayor | 4-6,7-6,1-5 |
| UTR Pro Tennis Series California | 2021/09/02 15:00 | Arthur Bellegy v William Peters | 1-6,3-6 |
| UTR Pro Tennis Series California | 2021/09/01 21:00 | Michail Pervolarakis v Arthur Bellegy | 6-4,1-6,5-1 |
| UTR Pro Tennis Series California | 2021/08/31 18:00 | Neel Rajesh v Arthur Bellegy | 1-6,6-4,4-6 |
| UTR Pro Tennis Series California | 2021/08/30 15:00 | Shahin Khaledan v Arthur Bellegy | 6-3,7-5 |
| UTR Pro Tennis Series California | 2021/08/29 15:00 | Arthur Bellegy v Evan Shamlian | 6-3,7-5 |