Stadium: Court A Round: 1
| ITF M15 Heraklion | 2020/03/12 08:30 | Altug Celikbilek v Yaraslav Shyla | 2-6,7-5,6-3 |
| ITF M15 Heraklion | 2020/03/11 10:45 | Altug Celikbilek v Matvey Khomentovskiy | 6-4,4-6,6-2 |
| Davis Cup | 2020/03/06 10:55 | Altug Celikbilek v Ben Patael | 7-5,1-6,6-4 |
| ITF M25 Antalya | 2020/02/27 10:30 | Altug Celikbilek v Ben Patael | 6-7,2-6 |
| Challenger Bergamo | 2020/02/17 15:30 | Raul Brancaccio v Altug Celikbilek | 3-6,6-0,6-1 |
| Challenger Quimper | 2020/01/29 11:25 | Constant Lestienne v Altug Celikbilek | 6-4,6-4 |
| Challenger Quimper | 2020/01/27 14:50 | Pavel Kotov v Altug Celikbilek | 5-7,1-6 |
| Challenger Rennes | 2020/01/20 12:50 | Kyrian Jacquet v Altug Celikbilek | 3-6,7-5,6-0 |
| ITF M15 Oberhaching | 2020/02/16 14:15 | Linus Frost v Karlo Cubelic | 6-4,7-5 |
| ITF M15 Oberhaching | 2020/02/16 08:00 | Marcus Mansson v Karlo Cubelic | 4-6,3-6 |
| ITF M25 Nussloch | 2020/01/20 11:20 | Jim Walder v Karlo Cubelic | 6-3,2-6,10-5 |
| ITF M25 Nussloch | 2020/01/19 09:00 | Tejas Chaukulkar v Karlo Cubelic | 4-6,1-6 |
| ITF M15 Antalya | 2019/12/17 07:00 | Karlo Cubelic v Luca Castagnola | 6-1,6-7,6-10 |
| ITF M15 Antalya | 2019/12/16 08:00 | Karlo Cubelic v Mikhail Yehayan | 6-1,6-0 |
| ITF M15 Antalya Qual | 2019/12/09 07:00 | Karlo Cubelic v Kuzey Cekirge | 4-6,6-7 |
| ITF M15 Cancun | 2019/11/21 17:10 | Karlo Cubelic v Gage Brymer | 2-6,2-6 |