Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| Challenger Las Franquesas del Valles | 2023/03/19 15:00 | Sergey Fomin v Bruno P Navarro | 4-6,5-7 |
| Challenger Székesfehérvár | 2023/03/13 09:00 | Benjamin Hassan v Sergey Fomin | 6-4,6-2 |
| Challenger Székesfehérvár | 2023/03/12 09:00 | Rafael Kis Balazs v Sergey Fomin | 5-7,1-6 |
| Challenger Antalya | 2023/03/05 08:40 | Gianmarco Ferrari v Sergey Fomin | 6-1,6-0 |
| ITF M15 Sharm El Sheikh | 2023/02/25 08:00 | Sergey Fomin v Marat Sharipov | 3-6,1-6 |
| ITF M15 Sharm El Sheikh | 2023/02/24 08:00 | Sergey Fomin v Lukas Krainer | 6-3,6-2 |
| ITF M15 Sharm El Sheikh | 2023/02/23 09:25 | Sergey Fomin v Alexander Blockx | 7-5,6-0 |
| ITF M15 Sharm El Sheikh | 2023/02/22 10:55 | Sergey Fomin v Wishaya Trongcharoenchaikul | 6-3,6-4 |
| ITF M15 Sharm El Sheikh | 2023/03/15 09:45 | Amr Asrawy v Alex Knaff | 6-4,2-6,6-4 |
| ITF M15 Sharm El Sheikh | 2023/03/10 08:00 | Lukas Pokorny v Alex Knaff | 6-1,6-4 |
| ITF M15 Sharm El Sheikh | 2023/03/09 08:00 | Alex Knaff v Kris Van Wyk | 6-4,6-1 |
| ITF M15 Sharm El Sheikh | 2023/03/08 08:00 | Joshua Sheehy v Alex Knaff | 4-6,5-7 |
| ITF M15 Sharm El Sheikh | 2023/03/01 14:15 | Lukas Pokorny v Alex Knaff | 3-6,6-2,6-1 |
| ITF M25 Faro | 2023/02/20 10:00 | Alex Knaff v Francois Musitelli | 2-6,4-6 |
| ITF M25 Faro | 2023/02/19 10:00 | Alex Knaff v Tomas Tenil | 6-2,6-0 |
| Davis Cup | 2023/02/05 13:30 | Alex Knaff v Kris Van Wyk | 3-6,6-3,6-4 |