Round: 45 Ground: Hardcourt outdoor
| ITF Mexico F1 | 2015/04/29 16:00 | Carlos Ramirez Utermann v Nicolas Barrientos | 3-6,2-6 |
| Challenger Dallas | 2016/02/02 18:30 | Nicolas Barrientos v Marco Trungelliti | 3-6,6-7 |
| Challenger Dallas Qual | 2016/01/31 17:20 | Nicolas Barrientos v Ruben Gonzales | 2-6,6-4,6-3 |
| ITF USA F1 | 2016/01/06 01:00 | Dennis Nevolo v Nicolas Barrientos | 6-4,7-6 |
| ITF Dominican Republic F2 | 2015/12/10 18:00 | Martin Cuevas v Nicolas Barrientos | 7-6,6-3 |
| ITF Dominican Republic F2 | 2015/12/09 20:15 | Goncalo Oliveira v Nicolas Barrientos | 4-6,2-6 |
| ITF Dominican Republic F2 | 2015/12/08 22:35 | Hunter Reese v Nicolas Barrientos | 3-6,1-6 |
| ITF Dominican Republic F1 | 2015/12/01 17:00 | Nicolas Barrientos v Hunter Reese | 3-6,6-7 |
| Challenger Las Vegas | 2015/10/20 21:00 | Taylor Fritz v Nicolas Barrientos | 6-3,6-2 |
| ITF Bolivia F3 | 2015/09/21 18:30 | Carlos Ramirez Utermann v Filipe Brandao | 4-6,3-6 |
| ITF Bolivia F2 | 2015/09/17 16:55 | Carlos Ramirez Utermann v Alejandro Mendoza | 7-6,4-6,5-7 |
| ITF Bolivia F2 | 2015/09/16 16:05 | Carlos Ramirez Utermann v Santiago Villarruel | 3-6,7-6,6-4 |
| ITF Bolivia F2 | 2015/09/15 15:55 | Thales Turini v Carlos Ramirez Utermann | 6-7,5-7 |
| ITF Bolivia F1 | 2015/09/07 19:50 | Filipe Brandao v Carlos Ramirez Utermann | 3-6,7-6,6-1 |
| ITF Colombia F7 | 2015/08/04 15:00 | Daniel Dutra Da Silva v Carlos Ramirez Utermann | 6-3,6-1 |
| ITF Colombia F7 | 2015/08/02 15:00 | Carlos Ramirez Utermann v Tomas Builes | 6-4,6-4 |
| ITF Mexico F8 | 2015/06/24 16:10 | Carlos Ramirez Utermann v Tigre Hank | 2-6,4-6 |