| UTR Pro Tennis Series California | 2021/05/25 18:30 | Nicolas Barrientos v Kalman Boyd | 6-7,6-4,6-4 |
| UTR Pro Tennis Series California | 2021/05/24 16:30 | Rohan Murali v Nicolas Barrientos | 0-6,1-6 |
| ITF M25 Pensacola | 2021/05/19 16:30 | Adrian Andreev v Nicolas Barrientos | 6-4,6-2 |
| ITF M25 Pensacola | 2021/05/18 14:30 | Nicolas Barrientos v Alexander Bernard | 4-6,6-1,10-4 |
| ITF M25 Pensacola | 2021/05/17 15:30 | Nicolas Barrientos v Tennyson Whiting | 6-2,6-3 |
| UTR Pro Tennis Series California | 2021/02/27 21:30 | Ryan James Storrie v Nicolas Barrientos | 2-6,6-1,3-0 |
| UTR Pro Tennis Series California | 2021/02/26 20:00 | Joshua Sheehy v Nicolas Barrientos | 5-7,4-5 |
| UTR Pro Tennis Series California | 2021/02/25 20:00 | Mousheg Hovhannisyan v Nicolas Barrientos | 5-7,3-6 |
| UTR Pro Tennis Series California | 2021/05/25 15:00 | Rohan Murali v Aaron Bailey | 4-6,6-3,7-5 |
| UTR Pro Tennis Series California | 2021/05/24 21:00 | Kalman Boyd v Aaron Bailey | 6-2,6-5 |
| UTR Pro Tennis Series California | 2021/05/23 19:00 | Rudy Quan v Aaron Bailey | 6-3,1-6,4-6 |
| UTR Pro Tennis Series California | 2021/02/20 22:00 | Kyle Kang v Aaron Bailey | 6-7,7-5,6-0 |
| UTR Pro Tennis Series California | 2021/02/18 19:00 | Aaron Bailey v Kalman Boyd | 6-3,6-2 |
| UTR Pro Tennis Series California | 2021/02/17 18:00 | Aaron Bailey v Alexander Sarkissian | 2-6,4-6 |
| UTR Pro Tennis Series California | 2021/02/16 21:30 | Aaron Bailey v Jonas Maier | 6-3,6-4 |
| UTR Pro Tennis Series California | 2021/02/15 20:30 | Aaron Bailey v Joshua Ortlip | 3-6,3-5 |