Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| Tel Aviv, Singles Qualifying M-ITF-ISR-01A | 2019/03/27 08:00 | Karlo Cubelic v Solberg, Christoffer | 3-6,6-4,4-6 |
| Tel Aviv, Singles Qualifying M-ITF-ISR-01A | 2019/03/26 11:30 | Karlo Cubelic v Vodavoz, Nir | 6-4,6-2 |
| Tel Aviv, Singles Qualifying M-ITF-ISR-01A | 2019/03/26 07:30 | Karlo Cubelic v Amoyal, Ofek | 6-3,6-3 |
| Manama, Singles M-ITF-BRN-01A | 2019/03/19 10:10 | Karlo Cubelic v Patrombon, Jeson | 4-6,2-6 |
| Manama, Singles M-ITF-BRN-01A | 2019/03/18 15:20 | Karlo Cubelic v Turcu, Mihnea Lorin Stefan | 6-0,6-3 |
| Manama, Singles M-ITF-BRN-01A | 2019/03/18 09:00 | Karlo Cubelic v Abdulnabi, Kareem | 6-3,6-0 |
| ITF - M15 Doha | 2019/03/11 08:00 | Sidane Pontjodikromo v Karlo Cubelic | 3-6,6-0,10-8 |
| ITF M15 Kaarst | 2019/02/07 14:55 | Kai Wehnelt v Karlo Cubelic | 7-6,7-6 |
| ITF - M15 Sharm El Sheikh | 2019/04/08 09:00 | Zharkov, Artem v Hellfritsch, Lucas | 1-6,1-6 |
| ITF - M15 Sharm El Sheikh | 2019/04/03 10:25 | Hellfritsch, Lucas v Seraphim, Christian | 6-7,1-6 |
| ITF - M15 Sharm El Sheikh | 2019/04/02 08:00 | March, Antonio Cayetano v Hellfritsch, Lucas | 4-6,3-6 |
| ITF - M15 Sharm El Sheikh | 2019/04/01 08:00 | Alcantara, Joao Pedro v Hellfritsch, Lucas | 2-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2019/03/25 11:00 | Kiyamov, Timur v Hellfritsch, Lucas | 6-7,6-0,10-7 |
| ITF - M15 Sharm El Sheikh | 2019/03/25 08:00 | Hellfritsch, Lucas v Presuhn, Bastien | 6-2,6-3 |
| ITF - M15 Sharm El Sheikh | 2019/03/20 09:45 | Hellfritsch, Lucas v Miladinovic, Marko | 1-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2019/03/11 08:00 | Hellfritsch, Lucas v Georgii Kravchenko | 4-6,7-5,4-10 |