| UTR Pro Tennis Series California | 2021/05/26 16:30 | Eric Hadigian v Paul Barretto | 6-2,5-3 |
| UTR Pro Tennis Series California | 2021/05/24 16:30 | Eric Hadigian v Jett Middleton | 6-3,5-3 |
| UTR Pro Tennis Series California | 2021/05/23 19:30 | Hugo Hashimoto v Eric Hadigian | 3-6,6-4,3-6 |
| UTR Pro Tennis Series California | 2021/05/22 15:00 | Eric Hadigian v Alex Kuperstein | 3-6,5-6 |
| UTR Pro Tennis Series California | 2021/05/20 20:30 | Eric Hadigian v Lucas Gomez | 4-6,4-5 |
| UTR Pro Tennis Series California | 2021/05/19 18:00 | Eric Hadigian v Gage Brymer | 3-6,3-6 |
| UTR Pro Tennis Series California | 2021/05/18 15:00 | Eric Hadigian v Kalman Boyd | 2-6,0-6 |
| UTR Pro Tennis Series California | 2021/05/17 18:00 | Eric Hadigian v Ishaan Ravichander | 6-4,6-2 |
| UTR Pro Tennis Series California | 2021/05/26 18:00 | Nicolas Barrientos v Aaron Bailey | 6-4,5-2 |
| 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 |