Stadium: Court 5 Round: 27 Ground: Hardcourt outdoor
| ITF M25 Maribor | 2023/09/07 08:00 | Tim Heger v Mathys Erhard | 3-6,4-6 |
| ITF M25 Maribor | 2023/09/06 09:50 | Jan Kupcic v Mathys Erhard | 6-4,1-6,4-6 |
| Challenger Prague | 2023/08/23 08:00 | Andrew Paulson v Mathys Erhard | 6-3,6-3 |
| Challenger Prague | 2023/08/22 08:00 | Mathys Erhard v Francesco Maestrelli | 7-6,5-7,6-3 |
| Challenger Todi | 2023/08/16 12:00 | Gabriel Debru v Mathys Erhard | 6-4,2-6,6-4 |
| Challenger Todi | 2023/08/15 16:35 | Lorenzo Giustino v Mathys Erhard | 6-7,0-6 |
| Challenger Todi | 2023/08/14 11:45 | Mathys Erhard v Felix Gill | 6-1,3-6,0-6 |
| Challenger Todi | 2023/08/13 15:00 | Mathys Erhard v Ramkumar Ramanathan | 6-4,6-2 |
| ITF M15 Olavarria | 2023/09/06 14:50 | Ignacio Carou v Guido Ivan Justo | 2-6,1-6 |
| Challenger Lima | 2023/08/22 18:45 | Guido Ivan Justo v Pedro Sakamoto | 4-6,6-7 |
| Challenger Lima | 2023/08/21 15:00 | Guido Ivan Justo v Alejandro H Franco | 0-6,6-2,6-1 |
| Challenger Lima | 2023/08/20 15:00 | Guido Ivan Justo v Noah Schachter | 6-7,6-3,6-3 |
| ITF M15 Belem | 2023/08/16 17:00 | Guido Ivan Justo v Pedro Rodrigues | 1-6,2-6 |
| ITF M15 Arequipa | 2023/08/12 17:00 | Alvaro Guillen Meza v Guido Ivan Justo | 6-4,6-3 |
| ITF M15 Arequipa | 2023/08/11 21:00 | Daniel Antonio Nunez v Guido Ivan Justo | 6-7,4-6 |
| ITF M15 Arequipa | 2023/08/10 16:00 | Guido Ivan Justo v Tomas Farjat | 7-6,3-6,7-6 |