Stadium: Court 23 Round: 54 Ground: Clay
| 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 | 2021/02/24 16:00 | Baker, Blu v Barrientos, Nicolas | 0-6,4-6 |
| UTR Pro Tennis Series California | 2021/02/22 20:00 | Spencer Johnson v Barrientos, Nicolas | 3-6,2-6 |
| UTR Pro Tennis Series California | 2021/02/20 19:00 | Isaiah Strode v Barrientos, Nicolas | 6-4,6-3 |
| UTR Pro Tennis Series California | 2021/02/19 19:00 | Hovhannisyan, Mousheg v Barrientos, Nicolas | 3-6,3-6 |
| UTR Pro Tennis Series California | 2021/02/18 16:00 | Lopez, Luis Humberto v Barrientos, Nicolas | 3-6,4-6 |
| ITF M15 Santo Domingo | 2020/11/29 14:30 | Tennyson Whiting v Jesse Flores | 3-6,2-6 |
| ITF M15 Quinta Do Lago | 2020/11/02 10:00 | Tennyson Whiting v Binding, Jonathan | 2-6,2-6 |
| ITF - M25 Vale Do Lobo | 2020/10/25 11:00 | Tennyson Whiting v Baltensperger, Raphael | 1-6,0-6 |
| ITF M15 Setubal | 2020/10/04 13:00 | Brandao, Filipe v Tennyson Whiting | 6-3,6-1 |
| ITF M15 Castelo Branco | 2020/09/20 11:30 | Rafael Giotis v Tennyson Whiting | 6-4,6-2 |
| ITF M15 Curtea de Arges | 2020/09/13 07:30 | Tennyson Whiting v Ioan Alexandru Chirita | 4-6,5-7 |
| ITF M15 Sintra | 2020/09/06 10:00 | Tennyson Whiting v Issei Okamura | 4-6,4-6 |