Stadium: Court 9 Round: 26 Ground: Clay
| ITF M25 Maribor | 2023/08/30 13:50 | Tim Heger v Matvey Minin | 4-6,1-6 |
| ITF M25 Maribor | 2023/08/29 09:30 | Tim Heger v Carlo Angeli | 6-4,6-2 |
| ITF M25 Maribor | 2023/08/28 12:30 | Tim Heger v Vito Horvat | 6-2,6-0 |
| ITF M15 Uberlingen | 2023/08/17 10:50 | Arthur Nagel v Tim Heger | 7-6,6-4 |
| ITF M15 Uberlingen | 2023/08/16 11:25 | Tim Heger v Phil Exner | 6-4,6-2 |
| ITF M15 Uberlingen | 2023/08/15 08:00 | Tim Heger v Christopher Patzanovsky | 7-6,6-2 |
| ITF M25 Marburg | 2023/07/03 08:00 | Ruben Hartig v Tim Heger | 7-5,1-6,10-8 |
| ITF M15 Saarlouis | 2023/06/22 09:30 | Marcel Zielinski v Tim Heger | 6-0,6-3 |
| 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 M25 Bolzano | 2023/08/05 08:55 | Mathys Erhard v Giovanni Oradini | 6-4,3-6,6-7 |
| ITF M25 Bolzano | 2023/08/04 10:35 | Mathys Erhard v Gian M Di Natale | 6-2,6-4 |