Stadium: Court 6 Round: 62 Ground: Clay
| ITF Germany F10 Qual | 2018/07/29 13:30 | Diarra, Gibril v Loccisano, Benjamin | 3-6,6-3,6-1 |
| ITF Austria F3 | 2018/07/18 11:00 | Konecny, Michal v Diarra, Gibril | 6-4,6-1 |
| ITF Austria F3 | 2018/07/17 08:00 | Juan Bautista Otegui v Diarra, Gibril | 3-6,5-7 |
| Challenger Braunschweig Qual | 2018/07/07 09:10 | Diarra, Gibril v Marvin Moeller | 5-7,5-7 |
| Challenger Marburg Qual | 2018/06/30 10:35 | Diarra, Gibril v Haider-Maurer, Andreas | 3-6,5-7 |
| ITF Germany F5 | 2018/06/26 15:20 | Diarra, Gibril v Willems, Johann | 1-6,2-6 |
| ITF Germany F4 | 2018/06/22 10:15 | Diarra, Gibril v Louis Wessels | 3-6,4-6 |
| ITF Germany F4 | 2018/06/19 11:25 | Patrick Zahraj v Diarra, Gibril | 3-6,4-6 |
| Challenger Marburg Qual | 2018/06/30 08:00 | Zeitvogel, Tim v Geoffrey Blancaneaux | 1-6,4-6 |