Stadium: Court 2 Round: 25 Ground: Clay
| ITF M15 Hyvinkaa | 2023/08/01 07:00 | Adam Heinonen v Robin Erik Parts | 6-2,4-6,10-5 |
| ITF M15 Hyvinkaa | 2023/07/31 09:30 | Adam Heinonen v Henrik Bladelius | 6-2,6-7,10-2 |
| ITF M15 Vejle | 2023/07/24 12:00 | Adam Heinonen v Facundo Bermejo | 4-6,6-4,8-10 |
| ITF M15 Sofia | 2023/07/06 08:10 | Adam Heinonen v Denis Klok | 1-6,1-6 |
| ITF M15 Sofia | 2023/07/05 06:00 | Sean Hess v Adam Heinonen | 7-5,5-7,5-7 |
| ITF M15 Sofia | 2023/07/03 14:30 | Aristotelis Thanos v Adam Heinonen | 3-6,5-7 |
| ITF M15 Sofia | 2023/07/03 09:30 | Ioannis Kountourakis v Adam Heinonen | 6-7,5-7 |
| ITF M15 Wroclaw | 2023/06/26 12:00 | Jasza Szajrych v Adam Heinonen | 2-6,6-3,10-7 |
| ITF M15 Perugia | 2023/07/27 13:00 | Niccolo Catini v Gabriele Piraino | 2-6,2-6 |
| ITF M15 Perugia | 2023/07/26 14:20 | Giannicola Misasi v Niccolo Catini | 3-6,3-6 |
| ITF M15 Gubbio | 2023/07/19 09:00 | Nicolas Bruna v Niccolo Catini | 4-6,6-3,1-6 |
| ITF M15 Bergamo | 2023/06/28 11:10 | Luca Castagnola v Niccolo Catini | 2-6,4-6 |
| ITF M15 Chieti | 2023/06/14 08:50 | Niccolo Catini v Marcello Serafini | 3-6,2-6 |
| ITF M15 Frascati | 2023/06/07 08:55 | Niccolo Catini v Andrey Chepelev | 6-4,1-6,4-6 |
| ITF M25 Rome | 2023/05/28 08:00 | Niccolo Catini v Stefano Baldoni | 7-5,4-6,8-10 |
| ITF M15 Doboj | 2023/05/12 08:45 | Niccolo Catini v Viacheslav Bielinskyi | 3-6,1-6 |