Stadium: Estadio Mitur Round: 25 Ground: Clay
| Challenger Guayaquil | 2021/11/01 16:00 | Nicolas Alvarez v Barrientos, Nicolas | 2-6,6-4,6-4 |
| Santo Domingo, Dominican Republic | 2022/08/15 19:55 | Nicolas Alvarez v Patrick Kypson | 2-6,3-6 |
| Santo Domingo, Dominican Republic | 2022/08/14 17:55 | Nicolas Alvarez v Beltre, Jasel | 6-1,6-0 |
| Challenger Lima | 2022/08/09 19:30 | Nicolas Alvarez v Panta Herreros, Jorge Brian | 2-6,5-7 |
| Bogota, Colombia | 2022/07/08 17:45 | Nicolas Alvarez v Gerald Melzer | 6-3,3-6,5-7 |
| Bogota, Colombia | 2022/07/07 17:00 | Facundo Mena v Nicolas Alvarez | 4-6,7-6,1-6 |
| Bogota, Colombia | 2022/07/05 21:20 | Nicolas Alvarez v Roman Andres Burruchaga | 7-6,4-6,6-2 |
| Cali, Colombia | 2022/07/01 16:00 | Nicolas Alvarez v Facundo Mena | 6-7,4-6 |
| Cali, Colombia | 2022/06/30 16:00 | Nicolas Alvarez v Felipe Meligeni Rodrigues Alves | 6-7,6-4,7-6 |
| Santo Domingo, Dominican Republic | 2022/08/15 18:00 | Barrientos, Nicolas v Huertas Del Pino Cordova, Arklon | 6-2,6-4 |
| Santo Domingo, Dominican Republic | 2022/08/14 16:35 | Barrientos, Nicolas v Alejandro Jose Gandini | 6-3,6-1 |
| ATP - Los Cabos | 2022/08/03 00:00 | Alex Hernandez v Barrientos, Nicolas | 3-6,6-4,6-4 |
| ATP - Los Cabos | 2022/08/01 03:25 | Kaichi Uchida v Barrientos, Nicolas | 6-1,4-6,6-4 |
| ATP - Los Cabos | 2022/07/31 03:10 | Pervolarakis, Michail v Barrientos, Nicolas | 3-6,4-6 |
| Umag, Croatia | 2022/07/23 14:00 | Elias Ymer v Barrientos, Nicolas | 6-4,6-7,7-5 |
| Challenger Amersfoort | 2022/07/10 12:45 | Cervantes, Inigo v Barrientos, Nicolas | 6-4,6-1 |
| Parma II, Italy | 2022/06/13 11:05 | Oriol Roca Batalla v Barrientos, Nicolas | 3-6,6-3,6-1 |