Stadium: Cancha 1 Round: 27 Ground: Hardcourt outdoor
| Santa Marta, Singles M-ITF-COL-02A | 2019/12/05 20:35 | Mendoza, Alejandro v Martinez Sarrasague, Felipe | 4-6,7-6,7-6 |
| ITF - M15 Santo Domingo | 2019/11/27 13:30 | Paul Jubb v Mendoza, Alejandro | 6-0,6-3 |
| ITF M15 Cancun | 2019/11/19 14:00 | Mendoza, Alejandro v Conner Huertas Del Pino | 6-7,2-6 |
| ITF M15 Cancun | 2019/11/14 19:30 | Zhurbin, Alexander v Mendoza, Alejandro | 6-3,6-3 |
| ITF M15 Cancun | 2019/11/05 17:50 | Mendoza, Alejandro v Khan, Zane | 6-7,3-6 |
| ITF M15 Cancun | 2019/10/24 17:00 | Mwendwa Mbithi v Mendoza, Alejandro | 6-3,6-2 |
| ITF M15 Cancun | 2019/10/23 22:00 | Butts, Skyler v Mendoza, Alejandro | 6-3,6-7,6-7 |
| ITF M15 Cancun | 2019/10/17 16:25 | Mendoza, Alejandro v Panta Herreros, Jorge Brian | 1-6,2-6 |
| Santa Marta, Singles M-ITF-COL-02A | 2019/12/03 22:55 | Aguilar, Federico Juan v Barrientos, Nicolas | 1-6,3-6 |
| Shenzhen II, Chine | 2019/10/28 03:45 | Tung-Lin Wu v Barrientos, Nicolas | 6-3,7-5 |
| Liuzhou, Chine | 2019/10/22 06:15 | Gunneswaran, Prajnesh v Barrientos, Nicolas | 6-2,6-1 |
| Liuzhou, Chine | 2019/10/21 04:40 | Barrientos, Nicolas v Fajing Sun | 6-4,3-6,7-6 |
| Ningbo, China | 2019/10/16 02:00 | Lopez Perez v Barrientos, Nicolas | 6-4,6-3 |
| Ningbo, China | 2019/10/15 02:00 | Goncalo Oliveira v Barrientos, Nicolas | 5-7,0-6 |
| Portoroz, Slovénie | 2019/08/13 08:00 | Barrientos, Nicolas v Viktor Durasovic | 2-6,6-3,1-6 |
| Portoroz, Slovénie | 2019/08/12 08:00 | Erler, Alexander v Barrientos, Nicolas | 6-3,2-6,2-6 |