Stadium: Court 3 Round: 27 Ground: Clay
| 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 Sharm El Sheikh | 2023/04/19 14:15 | Saveliy Ivanov v Alex Knaff | 1-6,2-6 |
| ITF M25 Sharm El Sheikh | 2023/04/14 08:30 | Samuel Vincent Ruggeri v Alex Knaff | 6-4,6-3 |
| ITF M25 Sharm El Sheikh | 2023/04/12 14:00 | Marcello Serafini v Alex Knaff | 2-6,4-6 |
| ITF M15 Pazardzhik | 2023/05/19 08:00 | Iliyan Radulov v Vlad Andrei Dancu | 1-6,6-1,6-2 |
| ITF M15 Pazardzhik | 2023/05/18 14:40 | Victorio Marquiselli v Iliyan Radulov | 1-6,3-6 |
| ITF M25 Kursumlijska Banja | 2023/05/10 09:40 | Iliyan Radulov v Mathys Erhard | 3-6,1-6 |
| ITF M25 Kursumlijska Banja | 2023/05/09 08:00 | Iliyan Radulov v Aleksandar Ljubojevic | 6-3,6-2 |
| ITF M25 Kursumlijska Banja | 2023/05/08 13:05 | Iliyan Radulov v Pavle Daljev | 6-1,6-2 |
| ITF M15 Kursumlijska Banja | 2023/05/04 10:10 | Iliyan Radulov v Elliot Benchetrit | 3-6,1-6 |
| ITF M15 Kursumlijska Banja | 2023/05/03 10:40 | Iliyan Radulov v Chukang Wang | 6-3,6-3 |
| ITF M15 Antalya | 2023/03/07 12:55 | Iliyan Radulov v Nicolas Zanellato | 6-7,2-6 |