Stadium: Court 1 Round: 25 Ground: Clay
| ITF - M25 Santa Margherita | 2019/04/04 12:00 | Torebko, Peter v Heyman, Christopher | 6-4,4-6,6-2 |
| ITF - M25 Santa Margherita | 2019/04/02 16:35 | Heyman, Christopher v Frunza, Nicolae | 7-6,4-6,6-4 |
| ITF - M25 Santa Margherita | 2019/03/29 13:00 | Petrone, Alessandro v Heyman, Christopher | 7-6,6-2 |
| ITF - M25 Santa Margherita | 2019/03/28 13:00 | Heyman, Christopher v Lindell, Christian | 6-4,6-4 |
| ITF - M25 Santa Margherita | 2019/03/26 13:00 | Heyman, Christopher v Giulio Zeppieri | 6-3,6-4 |
| Oslo, Singles M-ITF-NOR-01A | 2019/03/05 12:35 | Heyman, Christopher v Bergevi, Filip | 7-5,3-6,6-7 |
| ITF - M25 Trente | 2019/02/28 11:50 | Heyman, Christopher v Jahn, Jeremy | 6-3,3-6,4-6 |
| ITF - M25 Trente | 2019/02/26 10:30 | Heyman, Christopher v Caruana, Liam | 5-7,7-6,6-2 |
| ITF - M15 Antalya | 2019/04/10 06:45 | Domagoj Biljesko v Ratniuk, Maxim | 1-6,1-6 |
| ITF - M15 Rovinj | 2019/03/20 09:00 | Domagoj Biljesko v Ceppellini, Alessandro | 2-6,4-6 |
| ITF - M15 Porec | 2019/03/14 09:00 | Benjamin Hassan v Domagoj Biljesko | 6-4,6-4 |
| ITF - M15 Porec | 2019/03/12 13:05 | Gao, Qun v Domagoj Biljesko | 3-6,2-6 |
| ITF - M15 Antalya | 2019/02/27 07:00 | Domagoj Biljesko v Nicolas Mejia | 1-6,3-6 |
| ITF - M15 Antalya | 2019/02/18 07:00 | Nerman Fatic v Domagoj Biljesko | 6-2,6-3 |
| ITF Bosnia and Herzegovina F3 | 2018/05/31 11:25 | Domagoj Biljesko v Nagy, Peter | 4-6,0-6 |
| ITF Bosnia and Herzegovina F3 | 2018/05/29 12:40 | Domagoj Biljesko v Zhao, Lingxi | 6-7,6-3,6-4 |