Stadium: Court 9 Round: 26 Ground: Clay
| ITF M15 Warmbad-Villach | 2023/05/22 11:10 | Tim Heger v Noah Schlagenhauf | 5-7,6-7 |
| ITF M15 Warmbad-Villach | 2023/05/21 12:00 | Pietro Pampanin v Tim Heger | 4-6,4-6 |
| ITF M15 Krsko | 2023/05/17 08:00 | Tomas Lanik v Tim Heger | 6-2,6-3 |
| ITF M15 Krsko | 2023/05/15 12:30 | Andrej Krajcik v Tim Heger | 1-6,1-6 |
| ITF M15 Osijek | 2023/05/02 10:15 | Andrej Nedic v Tim Heger | 6-2,6-0 |
| ITF M15 Osijek | 2023/05/01 08:00 | Daniele Minighini v Tim Heger | 3-6,6-3,8-10 |
| ITF M25 Split | 2023/04/17 15:30 | Tim Heger v Marsel Znuderl | 4-6,4-6 |
| ITF M25 Split | 2023/04/17 12:00 | Tim Heger v Syl Gaxherri | 6-3,6-3 |
| ITF M25 Carnac | 2023/06/01 12:20 | Mathys Erhard v Clement Tabur | 1-6,6-7 |
| ITF M25 Carnac | 2023/05/31 13:45 | Mathys Erhard v Lucas Bouquet | 6-4,6-2 |
| ITF M25 Carnac | 2023/05/30 16:30 | Mathys Erhard v Tristan Lamasine | 6-3,6-3 |
| French Open | 2023/05/23 08:00 | Mathys Erhard v Flavio Cobolli | 4-6,6-3,4-6 |
| ITF M25 Kursumlijska Banja | 2023/05/21 07:30 | Mathys Erhard v Marko Topo | 2-6,1-6 |
| ITF M25 Kursumlijska Banja | 2023/05/20 08:00 | Mikalai Haliak v Mathys Erhard | 2-6,6-7 |
| ITF M25 Kursumlijska Banja | 2023/05/19 08:00 | Mathys Erhard v Timo Legout | 6-4,6-4 |
| ITF M25 Kursumlijska Banja | 2023/05/18 10:00 | Mathys Erhard v Niccolo Baroni | 6-3,1-6,7-5 |