Stadium: Court 6 Round: 54 Ground: Clay
| ITF M15 Celje | 2023/06/27 07:00 | Gian Marco Ortenzi v Mark Wallner | 6-4,6-4 |
| ITF M15 Celje | 2023/06/26 11:40 | Mark Wallner v Alexander Klintcharov | 6-2,7-6 |
| ITF M15 Litija | 2023/06/12 07:00 | Corey Gaal v Mark Wallner | 3-6,6-3,12-10 |
| ITF M25 Jablonec Nad Nisou | 2023/05/29 08:00 | Luca Wiedenmann v Mark Wallner | 6-4,6-3 |
| ITF M25 Jablonec Nad Nisou | 2023/05/28 08:00 | Mark Wallner v Maurus Malgiaritta | 6-1,6-0 |
| ITF M15 Warmbad-Villach | 2023/05/21 10:00 | Jakob Schnaitter v Mark Wallner | 6-3,6-0 |
| ITF M25 Prague | 2023/05/18 09:00 | Mark Wallner v Patrik Rikl | 2-6,2-6 |
| ITF M25 Prague | 2023/05/16 08:00 | Mark Wallner v Lukas Velik | 6-2,6-3 |
| ITF M25 Wetzlar | 2023/08/04 09:40 | Giuseppe La Vela v Buvaysar Gadamauri | 6-7,1-6 |
| ITF M25 Wetzlar | 2023/08/03 11:55 | Giuseppe La Vela v Daniel Salazar | 6-3,6-2 |
| ITF M25 Wetzlar | 2023/08/01 11:00 | Giuseppe La Vela v Gustaf Strom | 6-2,3-6,10-7 |
| ITF M25 Wetzlar | 2023/07/31 08:00 | Giuseppe La Vela v Lawrence Sciglitano | 6-3,6-1 |
| ITF M15 Metzingen | 2023/07/27 11:00 | Giuseppe La Vela v Sander Jong | 1-6,7-6,5-7 |
| ITF M15 Metzingen | 2023/07/26 12:30 | Moritz Hoffmann v Giuseppe La Vela | 2-6,3-6 |
| ITF M15 Metzingen | 2023/07/24 12:00 | Giuseppe La Vela v Mika Lipp | 6-4,6-3 |
| ITF M15 Metzingen | 2023/07/23 12:00 | Giuseppe La Vela v Max Van Nunen | 6-1,6-0 |