| ITF M15 Monastir | 04/01 10:25 | 26 | Aziz Dougaz v Gilbert Klier Junior | 7-5,6-3 | |
| ITF M15 Monastir | 03/30 10:30 | 25 | Alexander Donski v Gilbert Klier Junior | 6-7,3-6 | |
| ITF M15 Monastir | 03/25 08:30 | 26 | Gilbert Klier Junior v Mateus D C C Alves | 1-6,6-3,6-7 | |
| ITF M15 Monastir | 03/24 10:35 | 25 | Gilbert Klier Junior v Raphael Collignon | 3-6,6-4,6-4 | |
| ITF M15 Monastir | 03/13 09:00 | - | Vladimir Korolev v Gilbert Klier Junior | View | |
| ITF M15 Monastir | 03/12 10:35 | 26 | Paras Dahiya v Gilbert Klier Junior | Retired | |
| ITF M15 Monastir | 03/11 09:30 | 25 | Julien De Cuyper v Gilbert Klier Junior | 2-6,2-6 | |
| ITF M15 Cancun | 02/21 15:45 | 27 | Gilbert Klier Junior v Matic Spec | 6-7,1-6 | |
| ITF M15 Cancun | 02/20 14:00 | 26 | Gilbert Klier Junior v Julian Bradley | 4-6,6-2,6-1 | |
| ITF M15 Cancun | 02/18 18:00 | 25 | Gilbert Klier Junior v Justin Roberts | 6-4,7-5 | |
| ITF M15 Cancun | 02/11 15:40 | 25 | Felix Corwin v Gilbert Klier Junior | 6-1,6-0 | |
| ITF M15 Cancun | 02/04 14:00 | 25 | Tomas Lipovsek Puches v Gilbert Klier Junior | 7-6,6-1 | |
| Challenger Punta del Este | 01/28 14:00 | 24 | Gilbert Klier Junior v Hernan Casanova | Retired | |
| Challenger Punta del Este | 01/27 13:00 | 28 | Gilbert Klier Junior v Emiliano Troche | 6-4,6-1 | |
| ITF M15 Antalya | 11/23 08:00 | 28 | Alvaro Lopez San Martin v Gilbert Klier Junior | 6-2,6-3 | |
| ITF M15 Antalya | 11/22 08:30 | 27 | Dimitar Kuzmanov v Gilbert Klier Junior | 3-6,3-6 | |
| ITF M15 Antalya | 11/21 08:55 | 26 | Maxim Ratniuk v Gilbert Klier Junior | 3-6,4-6 | |
| ITF M15 Antalya | 11/20 08:40 | 25 | Dragos Dima v Gilbert Klier Junior | 6-7,3-6 | |
| ITF M15 Antalya | 11/14 08:35 | 26 | Gilbert S K Junior v Bogdan Ionut Apostol | 6-3,1-6,6-7 | |
| ITF M15 Antalya | 11/13 10:35 | 25 | Gilbert Klier Junior v Karlo Kranic | 3-6,6-4,6-3 | |
| ITF M15 Antalya | 11/05 08:35 | 25 | Gilbert Klier Junior v Sarp Agabigun | 1-6,3-6 | |
| ITF M15 Antalya | 10/31 08:45 | 26 | Gilbert Klier Junior v Oleg Prihodko | 5-7,6-7 | |
| ITF M15 Antalya | 10/29 07:00 | 25 | Gilbert Klier Junior v Juan Pablo Paz | 6-2,6-0 | |
| ITF M15 Sao Paulo | 10/18 21:50 | 27 | Gilbert Klier Junior v Rafael Matos | Retired | |
| ITF M15 Sao Paulo | 10/17 22:10 | 26 | Gilbert Klier Junior v Luciano Carraro | 6-4,7-6 | |
| ITF M15 Sao Paulo | 10/16 21:40 | 25 | Gilbert Klier Junior v Daniil Zarichanskiy | 6-2,6-1 | |
| ITF M25 Rio de Janeiro | 10/10 19:15 | 25 | Andre Miele v Gilbert Klier Junior | 4-6,6-4,6-2 | |
| Challenger Campinas | 09/30 16:45 | 24 | Gilbert Klier Junior v Nicolas Alvarez | 2-6,3-6 | |
| ITF M15 Idanha-a-Nova | 07/04 12:25 | 26 | Gilbert Klier Junior v Matija Pecotic | 2-6,4-6 | |
| ITF M15 Idanha-a-Nova | 07/03 12:10 | 25 | Gilbert Klier Junior v Kuzey Cekirge | 6-2,6-3 |