Stadium: Court 8 Round: 62 Ground: Clay
| ITF M15 Meerbusch | 2023/04/24 13:30 | Leon Formella v Michael Agwi | 5-7,2-6 |
| ITF M25 Opatija | 2023/03/19 08:00 | Leon Formella v Stefano D'Agostino | 4-6,2-6 |
| ITF M15 Porec | 2023/03/05 13:00 | Leon Formella v Antonio Massara | 0-6,0-6 |
| ITF M25 Monastir | 2023/02/12 10:30 | Darrshan Suresh v Leon Formella | 6-4,1-6,10-5 |
| ITF M25 Monastir | 2023/02/05 08:30 | Geni Inoue v Leon Formella | 6-4,6-2 |
| ITF M15 Monastir | 2022/12/18 08:00 | Neil Oberleitner v Leon Formella | 6-3,6-0 |
| ITF M15 Monastir | 2022/12/11 09:30 | Samir Hamza Reguig v Leon Formella | 6-3,6-1 |
| ITF M15 Monastir | 2022/12/04 08:00 | Leon Formella v Darrshan Suresh | 2-6,6-4,9-11 |
| ITF M25 Dubrovnik | 2023/04/03 07:00 | Tim Heger v Nik Mikovic | 6-4,6-4 |
| ITF M25 Opatija | 2023/03/21 08:00 | Giannicola Misasi v Nik Mikovic | 6-1,6-4 |
| ITF M15 Rovinj | 2023/03/13 10:30 | Sergi Perez Contri v Nik Mikovic | 6-3,6-3 |
| ITF M15 Rovinj | 2023/03/12 12:00 | Nik Mikovic v Piotr Czaczkowski | 6-1,6-0 |
| ITF M15 Porec | 2023/03/06 10:35 | Nikola Basic v Nik Mikovic | 6-3,6-0 |
| ITF M15 Porec | 2023/03/05 09:00 | Andrei Cuceu v Nik Mikovic | 1-6,0-6 |
| ITF M15 Antalya | 2023/02/21 07:00 | Igor Gimenez v Nik Mikovic | 6-4,6-3 |
| ITF M15 Antalya | 2023/02/20 10:05 | Nik Mikovic v Utku Kerem Biberli | 6-1,6-3 |