| Coupe Davis | 2017/06/14 15:50 | Diaz, Alex v Maginley, J. | 6-4,6-3 |
| Coupe Davis | 2017/06/13 17:00 | Diaz, Alex v Rowland Phillips | 7-6,1-6,6-4 |
| ITF USA F35 | 2016/11/03 15:00 | Felix Auger Aliassime v Diaz, Alex | 1-6,6-0,6-1 |
| ITF USA F35 | 2016/11/01 18:20 | Carter, Andrew v Diaz, Alex | 6-7,5-7 |
| ITF USA F35 | 2016/10/31 15:00 | Diaz, Alex v Cancel, Thibault | 6-4,6-3 |
| ITF USA F35 | 2016/10/30 16:30 | Smilansky, Igor v Diaz, Alex | 3-6,5-7 |
| ITF USA F35 | 2016/10/29 19:00 | Diaz, Alex v Axel Nefve | 6-4,6-4 |
| Coupe Davis | 2016/07/15 22:35 | Galeano, Diego v Diaz, Alex | 6-3,6-1,6-1 |
| Coupe Davis | 2017/06/15 15:00 | Obando, Alejandro v Bicknell, Jacob | 5-7,6-1,6-4 |
| Coupe Davis | 2017/06/14 15:00 | Obando, Alejandro v Manders, Gavin | 6-3,6-2 |
| Coupe Davis | 2016/07/16 14:00 | Obando, Alejandro v Rivera Granja, Osmel | 3-6,4-6 |
| Coupe Davis | 2016/07/15 16:35 | Obando, Alejandro v Nunez, Pablo | 6-4,4-6,3-6 |
| ITF Chile F5 | 2015/04/19 17:00 | Obando, Alejandro v Fleming, David | 0-6,5-7 |
| ITF Chile F5 | 2015/04/18 17:00 | Obando, Alejandro v Leiva Biason, Oscar Mattias | 6-1,7-5 |