Stadium: Stadium Round: 28 Ground: Clay
| ITF M15 Arequipa | 2023/08/10 16:00 | Alberto Odiseo Alvarado Berrospi v Daniel Antonio Nunez | 5-7,4-6 |
| ITF M15 Arequipa | 2023/08/09 14:25 | Daniel Antonio Nunez v Matias Soto | 2-6,6-1,7-6 |
| ITF M15 Arequipa | 2023/08/08 14:30 | Francisco Pini v Daniel Antonio Nunez | 4-6,6-7 |
| ITF M25 Santo Domingo | 2023/06/27 15:30 | Martin Damm v Daniel Antonio Nunez | 6-3,7-6 |
| ITF M15 Santo Domingo | 2023/06/24 13:30 | Tauheed Browning v Daniel Antonio Nunez | 6-3,6-3 |
| ITF M15 Santo Domingo | 2023/06/23 15:30 | Daniel Antonio Nunez v Tyler Stice | 3-6,6-2,6-4 |
| ITF M15 Santo Domingo | 2023/06/22 13:30 | Jelani Sarr v Daniel Antonio Nunez | 7-6,3-6,4-6 |
| ITF M15 Santo Domingo | 2023/06/20 14:00 | Daniel Antonio Nunez v Rafael Tosetto | 6-7,6-0,6-3 |
| ITF M15 Arequipa | 2023/08/10 16:00 | Guido Ivan Justo v Tomas Farjat | 7-6,3-6,7-6 |
| ITF M15 Arequipa | 2023/08/09 17:00 | Guido Ivan Justo v Juan Estevez | 3-6,6-1,6-1 |
| ITF M15 Arequipa | 2023/08/08 16:10 | Guido Ivan Justo v Nicolas Buitrago | 6-4,6-2 |
| Challenger Santa Fe | 2023/07/04 15:50 | Francisco Comesana v Guido Ivan Justo | 6-2,6-4 |
| ITF M25 Rosario | 2023/06/30 18:40 | Tomas Farjat v Guido Ivan Justo | 3-6,6-3,6-4 |
| ITF M25 Rosario | 2023/06/29 15:20 | Gonzalo Zeitune v Guido Ivan Justo | 1-6,2-6 |
| ITF M25 Rosario | 2023/06/27 17:45 | Juan Manuel La Serna v Guido Ivan Justo | 0-6,6-7 |
| ITF M15 Rabat | 2023/06/13 13:10 | Pedro Rodenas v Guido Ivan Justo | 7-6,7-6 |