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