Stadium: Court 6 Round: 44 Ground: Clay
| ITF M15 Krsko | 2023/05/15 12:30 | Federico Campana v Leon Formella | 6-2,6-0 |
| ITF M15 Osijek | 2023/04/30 09:30 | Leon Formella v Nik Mikovic | 6-2,3-6,3-10 |
| 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 M25 Gurb | 2023/05/14 07:00 | Laurent Julia Calac v Kyle Overmyer | 2-6,4-6 |