Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Doha | 2019/10/22 12:00 | Mikalai Haliak v Nusdeo, Joao Marcos | 6-2,2-6,10-4 |
| ITF - M15 Doha | 2019/10/16 12:00 | Quentin Folliot v Mikalai Haliak | 6-1,6-3 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/09/18 12:20 | Dougaz, Aziz v Mikalai Haliak | 6-3,6-1 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/09/13 08:30 | Mikalai Haliak v Sebastian Baez | 2-6,6-7 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/09/12 09:35 | Guy Orly Iradukunda v Mikalai Haliak | 3-6,4-6 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/09/10 12:35 | Mikalai Haliak v Ruzgas, Marius | 6-2,6-2 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/09/05 09:00 | Mikalai Haliak v Paul Woerner | 0-6,7-5,3-6 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/09/03 12:15 | Pereira, Miguel Fernando v Mikalai Haliak | 1-6,2-6 |
| ITF - M15 Doha | 2019/10/16 12:00 | Guy Den Heijer v Antoine Bellier | 1-6,3-6 |
| ITF - M15 Antalya | 2019/09/27 07:30 | Paul Woerner v Guy Den Heijer | 6-2,6-1 |
| ITF - M15 Antalya | 2019/09/24 07:00 | Guy Den Heijer v Alejandro H Franco | 7-6,6-0 |
| ITF M15 Haren | 2019/08/29 13:10 | Guy Den Heijer v Ryan Nijboer | 3-6,3-6 |
| ITF M15 Haren | 2019/08/28 10:20 | Adamson, Alec v Guy Den Heijer | 2-6,2-6 |
| ITF M15 Oldenzaal | 2019/08/15 15:20 | Eisinga, Zachary v Guy Den Heijer | 7-6,7-5 |
| ITF M15 Oldenzaal | 2019/08/14 17:20 | Rother, Jannik v Guy Den Heijer | 7-5,3-6,4-6 |
| ITF M15 Eupen | 2019/08/07 08:00 | Guy Den Heijer v Daniel De Jonge | 2-6,3-6 |