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