Stadium: Center Court Round: 25 Ground: Clay
| ITF M15 Saarlouis | 2023/06/22 12:30 | Sander Jong v Alex Knaff | 6-4,6-3 |
| ITF M15 Saarlouis | 2023/06/21 11:20 | Masato Perera v Alex Knaff | 2-6,3-6 |
| ITF M15 Duffel | 2023/06/13 10:00 | Alex Knaff v Michiel de Krom | 6-7,3-6 |
| ITF M15 Pazardzhik | 2023/05/26 07:00 | Leonardo Rossi v Alex Knaff | 6-1,6-3 |
| ITF M15 Pazardzhik | 2023/05/25 07:00 | Marco Miceli v Alex Knaff | 6-2,1-6,3-6 |
| ITF M15 Pazardzhik | 2023/05/20 09:45 | Alex Knaff v Iliyan Radulov | 4-6,2-6 |
| ITF M15 Pazardzhik | 2023/05/19 11:20 | Alex Knaff v Nicolas Buitrago | 4-6,6-3,6-2 |
| ITF M15 Pazardzhik | 2023/05/18 15:35 | Alex Knaff v Ioannis Xilas | 7-5,7-5 |
| Challenger Blois | 2023/06/18 08:30 | Mathys Erhard v Mohamed Safwat | 3-6,3-6 |
| ITF M25 Grasse | 2023/06/16 14:30 | Mathys Erhard v Titouan Droguet | 1-6,3-6 |
| ITF M25 Grasse | 2023/06/15 14:00 | Mathys Erhard v Mikalai Haliak | 6-1,7-5 |
| ITF M25 Grasse | 2023/06/13 11:35 | Mathys Erhard v Joris Moret | 6-1,7-6 |
| 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 |