Stadium: Court 5 Round: 26 Ground: Clay
| ITF M25 - Praga | 2023/05/16 08:00 | Mark Wallner v Lukas Velik | 6-2,6-3 |
| ITF M25 - Praga | 2023/05/15 11:00 | Mark Wallner v Eduard Silviu Schipor | 6-0,6-0 |
| ITF M25 - Praga | 2023/05/14 11:00 | Daniel Paty v Mark Wallner | 6-2,1-6,8-10 |
| ITF - M15 Monastir | 2023/04/10 08:00 | Max Wiskandt v Mark Wallner | 6-3,6-3 |
| ITF - M15 Monastir | 2023/04/09 10:00 | Mark Wallner v Dean Cooper Kirby | 6-2,6-3 |
| ITF - M15 Monastir | 2023/04/03 15:00 | Mark Wallner v Jake Van Emburgh | 4-6,3-6 |
| ITF - M15 Monastir | 2023/03/27 12:30 | Wissam Abderrahman v Mark Wallner | 7-6,2-6,10-7 |
| ITF - M15 Monastir | 2023/03/27 08:30 | Mark Wallner v Matthew Rankin | 6-1,6-2 |
| ITF M25 - Praga | 2023/05/17 09:10 | Jiri Jenicek v Patrik Rikl | 4-6,3-6 |
| ITF M25 - Praga | 2023/05/16 09:35 | Patrik Rikl v Dylan Dietrich | 6-2,6-7,11-9 |
| ITF M25 - Praga | 2023/05/15 10:45 | Patrik Rikl v Andrin Casanova | 6-4,4-6,11-9 |
| ITF M25 - Praga | 2023/05/14 08:30 | Patrik Rikl v Samuel Kyjaci | 6-1,6-4 |
| Challenger - Praga - Calificari | 2023/05/07 09:50 | Patrik Rikl v Alex Rybakov | 6-7,5-7 |
| Challenger - Ostrava | 2023/04/25 12:20 | Patrik Rikl v Mate Valkusz | 3-6,6-4,1-6 |
| Challenger - Ostrava | 2023/04/24 08:30 | Timo Stodder v Patrik Rikl | 4-6,2-6 |
| Challenger - Ostrava | 2023/04/23 08:30 | Patrik Rikl v Mathias Bourgue | 6-3,6-3 |