Stadium: Court 5 Round: 62 Ground: Clay
| ITF M25 Prague | 2023/05/15 11:00 | Mark Wallner v Eduard Silviu Schipor | 6-0,6-0 |
| ITF M25 Prague | 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 M15 Monastir | 2023/03/26 08:30 | Mark Wallner v Aydan Gomez Osorio | 6-3,6-2 |
| ITF M25 Prague | 2023/05/15 10:30 | Michal Krajci v Lukas Velik | 3-6,2-6 |
| ITF M25 Prague | 2023/05/14 10:00 | Lukas Velik v Timur Maulenov | 6-4,6-1 |
| ITF M15 Prostejov | 2022/09/25 10:30 | Lukas Velik v Daniel Orlita | 6-4,1-6,8-10 |
| ITF M25 Jablonec Nad Nisou | 2022/05/23 08:00 | Dominik Recek v Lukas Velik | 6-4,6-4 |
| ITF M25 Most | 2022/05/17 08:15 | Michel Hopp v Lukas Velik | 6-4,6-0 |
| ITF M25 Most | 2022/05/15 08:00 | Peter Samosi v Lukas Velik | 0-6,1-6 |
| ITF M25 Prague | 2022/05/08 08:00 | Adam Blecha v Lukas Velik | 7-6,6-0 |
| Challenger Prague | 2022/05/01 11:20 | Lukas Velik v Denis Yevseyev | 3-6,1-6 |