Stadium: Court 1 Round: 62 Ground: Clay
| ITF M25 Oldenzaal | 2023/08/27 09:30 | Marcel Hornung v Arthur Van Der Kooij | 6-4,6-4 |
| ITF M15 Eupen | 2023/08/07 10:00 | Jiri Cizek v Marcel Hornung | 6-3,6-4 |
| ITF M25 Oldenzaal | 2022/08/21 16:30 | Marcel Hornung v Tom Clavel | 0-6,4-6 |
| ITF M25 Oldenzaal | 2022/08/21 12:00 | Marcel Hornung v Ole Bredschneijder | 3-6,6-3,17-15 |
| ITF M15 Uberlingen | 2022/08/15 12:00 | Adam Jurajda v Marcel Hornung | 6-1,6-2 |
| ITF M15 Eupen | 2022/08/07 07:30 | Jakub Wojcik v Marcel Hornung | 6-3,6-4 |
| ITF M25 Arlon | 2022/06/20 10:35 | Daniel Siniakov v Marcel Hornung | 6-2,6-1 |
| ITF M25 Eupen | 2021/09/07 09:25 | Arthur Fery v Marcel Hornung | 6-2,6-1 |
| ITF M15 Huy | 2023/08/21 11:45 | Thiemo De Bakker v Leon Formella | 6-3,6-0 |
| ITF M15 Huy | 2023/08/20 08:00 | Leon Formella v Austin Johnson | 7-5,6-4 |
| ITF M25 Muttenz | 2023/08/14 10:10 | Leon Formella v Giuseppe La Vela | 4-6,3-6 |
| ITF M15 Eupen | 2023/08/08 08:00 | Stijn Slump v Leon Formella | 6-4,6-2 |
| ITF M15 Eupen | 2023/08/07 07:00 | Julian Peter v Leon Formella | 4-6,2-6 |
| ITF M15 Novi Sad | 2023/07/31 07:00 | Daniil Ostapenkov v Leon Formella | 6-1,6-2 |
| ITF M25 Bacau | 2023/07/23 08:30 | Leon Formella v Louis Allen | 2-6,4-6 |
| ITF M15 Uslar | 2023/07/17 09:00 | Leon Formella v Jeremy Schifris | 1-6,1-6 |