Stadium: Court 4 Round: 44 Ground: Clay
| ITF - M25 Naples | 2020/02/09 15:00 | Caripi, Vasilios v A.J Catanzariti | 3-6,3-6 |
| Palm Coast, Singles M-ITF-USA-05A | 2020/02/03 15:00 | Colin Sinclair v A.J Catanzariti | 6-4,6-3 |
| ITF M15 Santo Domingo | 2019/12/13 14:00 | Nick Hardt v A.J Catanzariti | 6-2,6-4 |
| ITF M15 Santo Domingo | 2019/12/12 14:40 | A.J Catanzariti v Olivares, Jose | 7-6,6-4 |
| ITF M15 Santo Domingo | 2019/12/11 13:30 | A.J Catanzariti v Matt Kuhar | 6-4,1-6,6-4 |
| ITF M15 Santo Domingo | 2019/12/03 17:15 | A.J Catanzariti v Mendez, Matthew | 4-6,4-6 |
| ITF M15 Santo Domingo | 2019/11/27 14:30 | Jan Choinski v A.J Catanzariti | 6-1,6-2 |
| ITF M15 Santo Domingo | 2019/11/26 13:00 | A.J Catanzariti v Lambling, Raphael | 6-4,6-1 |
| ITF - M25 Naples | 2020/02/09 15:00 | Murillo, Sebastian v Barrientos, Nicolas | 0-6,3-6 |
| ITF M25 Weston | 2020/01/30 15:00 | Barrientos, Nicolas v Wilson Leite | 5-7,0-6 |
| ITF M25 Weston | 2020/01/29 16:40 | Alex Rybakov v Barrientos, Nicolas | 6-7,6-3,4-6 |
| Ann Arbor, USA | 2020/01/07 00:40 | Velotti, Agustin v Barrientos, Nicolas | 6-4,6-3 |
| Santa Marta, Singles M-ITF-COL-02A | 2019/12/08 20:55 | Gomez, Alejandro v Barrientos, Nicolas | 4-6,6-1,6-4 |
| Santa Marta, Singles M-ITF-COL-02A | 2019/12/07 20:00 | Juan Sebastian Gomez v Barrientos, Nicolas | 4-6,1-6 |
| Santa Marta, Singles M-ITF-COL-02A | 2019/12/06 20:00 | Mendoza, Alejandro v Barrientos, Nicolas | 4-6,2-6 |
| Santa Marta, Singles M-ITF-COL-02A | 2019/12/03 22:55 | Aguilar, Federico Juan v Barrientos, Nicolas | 1-6,3-6 |