Stadium: Center Court Round: 25 Ground: Clay
| 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 |
| ITF M25 Nottingham | 2023/04/26 12:35 | Alex Knaff v George Loffhagen | 2-6,6-7 |
| ITF M25 Sharm El Sheikh | 2023/04/21 08:30 | Kris Van Wyk v Alex Knaff | 6-3,6-1 |
| ITF M25 Sharm El Sheikh | 2023/04/20 11:10 | Alex Knaff v Devin Badenhorst | 6-4,6-2 |
| 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 |