Round: 26 Ground: Hardcourt outdoor
| Challenger Cali 2 | 2014/09/30 15:30 | Giovanni Lapentti v Nicolas Barrientos | 7-6,4-6,1-6 |
| Challenger Leon | 2015/04/07 17:35 | Michal Przysiezny v Nicolas Barrientos | 4-6,3-6 |
| Challenger Leon Qual | 2015/04/06 16:30 | Nicolas Barrientos v Guillermo Duran | 6-4,6-3 |
| Challenger Morelos | 2015/02/18 16:00 | Victor Estrella Burgos v Nicolas Barrientos | 6-4,1-6,7-6 |
| ITF USA F1 | 2015/01/09 17:40 | Julian Lenz v Nicolas Barrientos | 7-5,6-3 |
| ITF USA F1 | 2015/01/08 17:45 | Mischa Zverev v Nicolas Barrientos | 2-6,2-6 |
| ITF Colombia F8 | 2014/11/20 15:00 | Nicolas Barrientos v Federico Zeballos | 4-6,5-7 |
| ITF Colombia F7 | 2014/11/15 15:00 | Nicolas Barrientos v Eduardo Struvay | 4-6,7-6,4-6 |
| ITF Colombia F7 | 2014/11/14 14:30 | Nicolas Barrientos v Manuel Sanchez | 6-2,6-4 |
| Challenger Leon | 2015/04/06 20:05 | Renzo Olivo v Giovanni Lapentti | 3-6,4-6 |
| Challenger San Luis Potosi | 2015/04/02 18:00 | Giovanni Lapentti v Andres Molteni | 6-1,4-6,1-6 |
| Challenger San Luis Potosi Qual | 2015/03/30 20:40 | Giovanni Lapentti v Caio Zampieri | 4-6,5-7 |
| ITF USA F11 | 2015/03/27 20:05 | Giovanni Lapentti v Dennis Novikov | 7-5,4-6,3-6 |
| ITF USA F11 | 2015/03/26 18:20 | Sekou Bangoura v Giovanni Lapentti | 2-6,4-6 |
| ITF USA F11 | 2015/03/25 22:55 | Giovanni Lapentti v Michael Shabaz | 6-4,6-4 |
| Challenger Morelos | 2015/02/18 18:05 | Giovanni Lapentti v Daniel Nguyen | 6-7,6-7 |
| Challenger Morelos | 2015/02/17 16:00 | Jimmy Wang v Giovanni Lapentti | 5-7,2-6 |