Stadium: Court 4 Round: 25 Ground: Clay
| Challenger Praga | 2023/04/30 11:35 | Jiri Barnat v Alejandro Moro Canas | 5-7,5-7 |
| Challenger Ostrava | 2023/04/23 08:30 | Billy Harris v Jiri Barnat | 6-2,6-2 |
| ITF - Antalya M15 | 2023/04/19 11:35 | Michel Hopp v Jiri Barnat | 6-3,6-3 |
| ITF - Trnava M25 | 2023/03/30 08:00 | Peter Benjamin Privara v Jiri Barnat | 6-2,6-1 |
| ITF - Trnava M25 | 2023/03/29 09:30 | Jiri Barnat v Mathys Erhard | 6-4,7-6 |
| ITF - Sharm El Sheikh M15 | 2023/03/25 08:30 | Jiri Barnat v Marat Sharipov | 0-6,7-5,4-6 |
| ITF - Sharm El Sheikh M15 | 2023/03/24 08:30 | Jiri Barnat v Alexander Cozbinov | 7-5,6-4 |
| ITF - Sharm El Sheikh M15 | 2023/03/23 08:30 | Jiri Barnat v Kareem Allaf | 7-6,6-7,6-3 |
| Challenger Mauthausen | 2023/05/09 10:30 | Lukas Neumayer v Dane Sweeny | 4-6,6-1,3-6 |
| ITF - Santa Margherita M25 | 2023/05/05 07:55 | Lukas Neumayer v Daniel Michalski | 4-6,1-6 |
| ITF - Santa Margherita M25 | 2023/05/04 08:55 | Federico Iannaccone v Lukas Neumayer | 1-6,6-0,4-6 |
| ITF - Santa Margherita M25 | 2023/05/03 13:25 | Louroi Martinez v Lukas Neumayer | 6-4,4-6,3-6 |
| ITF - Santa Margherita M25 | 2023/05/01 11:50 | Mick Veldheer v Lukas Neumayer | 3-6,2-6 |
| ITF - Santa Margherita M25 | 2023/04/28 09:00 | Lorenzo Rottoli v Lukas Neumayer | 2-6,6-1,7-6 |
| ITF - Santa Margherita M25 | 2023/04/27 11:50 | Lukas Neumayer v Andrey Chepelev | 6-2,6-1 |
| ITF - Santa Margherita M25 | 2023/04/26 12:05 | Lukas Neumayer v Tommaso Compagnucci | 6-2,6-4 |