Round: 26 Ground: Clay
| ITF Colombia F8 | 2014/11/20 15:00 | Barrientos, Nicolas v Federico Zeballos | 4-6,5-7 |
| ITF Colombia F7 | 2015/08/04 15:00 | Olivares, Jose v Federico Zeballos | 2-6,6-2,2-6 |
| Coupe Davis | 2015/07/17 14:30 | Beretta, Duillo v Federico Zeballos | 4-6,6-7,6-2,6-3,4-6 |
| ITF Turkey F31 | 2015/06/30 07:00 | Aleksandre Metreveli v Federico Zeballos | 6-2,6-3 |
| ITF Turkey F31 | 2015/06/24 09:10 | Federico Zeballos v Hobart, Daniel | 3-6,6-7 |
| ITF Turkey F31 | 2015/06/20 08:00 | Federico Zeballos v Mousley, Bradley | 2-6,3-6 |
| ITF Turkey F31 | 2015/06/19 07:00 | Podzus, Janis v Federico Zeballos | 4-6,0-6 |
| ITF Turkey F31 | 2015/06/18 09:50 | Watson, Andrew v Federico Zeballos | 6-7,3-6 |
| ITF Turkey F31 | 2015/06/16 07:00 | Suluoglu, Sefa v Federico Zeballos | 3-6,0-6 |
| ITF Colombia F6 | 2015/07/27 18:45 | Daniel Dutra Da Silva v Barrientos, Nicolas | 6-3,2-6,6-3 |
| Challenger Padova Qual | 2015/06/29 10:00 | Barrientos, Nicolas v Alessandro Giannessi | 2-6,2-6 |
| Milan, Italy | 2015/06/23 08:30 | Marco Cecchinato v Barrientos, Nicolas | 6-2,6-4 |
| Challenger - Perugia | 2015/06/16 16:05 | Barrientos, Nicolas v Gianluca Mager | 4-6,7-5,6-7 |
| Challenger Caltanissetta | 2015/06/09 11:00 | Barrientos, Nicolas v Gonzalez, Maximo | 2-6,3-6 |
| Challenger Caltanissetta Qual | 2015/06/07 10:00 | Barrientos, Nicolas v Andrea Collarini | 6-3,6-1 |
| ITF Colombia F3 | 2015/05/26 19:05 | Barrientos, Nicolas v Gomez, Alejandro | 6-7,3-6 |
| ITF Colombia F1 | 2015/05/13 15:00 | Barrientos, Nicolas v Romboli, Fernando | 2-6,4-6 |