Estádio: Court 8 Round: 25 Ground: Clay
| ITF - M15 Tabarka | 2019/07/22 07:30 | Maikel Borg v Zakaria B Brahim | 2-6,4-6 |
| ITF - M15 Tabarka | 2019/07/15 13:00 | Maikel Borg v Shunsuke Wakita | 3-6,6-4,6-10 |
| ITF - M15 Den Haag | 2019/07/02 07:30 | Maikel Borg v Roland Stuurman | 0-6,3-6 |
| ITF - M15 Den Haag | 2019/07/01 07:30 | Maikel Borg v Tribb De Jong | 6-3,6-0 |
| ITF - M15 Alkmaar | 2019/06/24 11:00 | Alec Deckers v Maikel Borg | 3-6,6-3,10-1 |
| ITF M15 Kaarst | 2019/02/04 08:30 | Boris Butulija v Maikel Borg | 6-2,6-7,10-5 |
| ITF - Tunísia F43 | 2018/12/03 08:30 | Maikel Borg v Kristjan Tamm | 5-7,3-6 |
| ITF - Tunísia F42 | 2018/11/25 10:00 | Erik Crepaldi v Maikel Borg | 6-4,6-1 |
| ITF - M15 Bad Schussenried | 2019/07/23 08:30 | Henri Squire v Constantin Schmitz | 7-5,6-3 |
| ITF - M25 Karlsruhe | 2019/06/03 09:00 | Adrian Oetzbach v Constantin Schmitz | 6-4,7-5 |
| ITF - M15 Tabarka | 2019/05/17 09:00 | Mohamed Aziz Dougaz v Constantin Schmitz | 7-6,6-1 |
| ITF - M15 Tabarka | 2019/05/16 12:45 | Alessandro Ingarao v Constantin Schmitz | 2-6,1-6 |
| ITF - M15 Tabarka | 2019/05/15 08:00 | Hugo Schott v Constantin Schmitz | 1-6,4-6 |
| ITF - M15 Troisdorf | 2019/05/10 10:00 | Constantin Schmitz v Kacper Zuk | 4-6,2-6 |
| ITF - M15 Troisdorf | 2019/05/09 11:20 | Daniel De Jonge v Constantin Schmitz | 3-6,1-6 |
| ITF - M15 Troisdorf | 2019/05/09 08:00 | Kai Wehnelt v Constantin Schmitz | 2-6,2-6 |