Estádio: Court 4 Round: 25 Ground: Hardcourt outdoor
| Challenger - Eckental | 2019/10/29 11:40 | Maxime Cressy v Niklas Guttau | 6-3,7-5 |
| Challenger - Hamburgo | 2019/10/22 09:40 | Jelle Sels v Niklas Guttau | 7-6,6-2 |
| ITF - M15 Tabarka | 2019/10/09 09:55 | Niklas Guttau v Alexander Weis | 6-7,2-6 |
| ITF - M15 Tabarka | 2019/10/02 08:30 | Niklas Guttau v Bogdan Bobrov | 0-6,6-3,4-6 |
| ITF - M15 Tabarka | 2019/09/26 08:30 | Giacomo Dambrosi v Niklas Guttau | 5-7,6-4,6-3 |
| ITF - M15 Tabarka | 2019/09/24 08:30 | Adam Nagoudi v Niklas Guttau | 1-6,1-6 |
| ITF - M15 Tabarka | 2019/09/20 08:30 | Thomas Laurent v Niklas Guttau | 6-4,6-2 |
| ITF - M15 Tabarka | 2019/09/19 08:30 | Niklas Guttau v Anas Fattar | 7-6,6-2 |
| ITF - M15 Doha | 2019/10/24 14:10 | Tobias Simon v Sidane Pontjodikromo | 6-4,6-3 |
| ITF - M15 Doha | 2019/10/23 13:20 | Rishab Agarwal v Sidane Pontjodikromo | 5-7,6-2,3-6 |
| ITF - M15 Doha | 2019/10/22 12:00 | Sidane Pontjodikromo v Vital Flurin Leuch | 6-2,6-3 |
| ITF - M15 Doha | 2019/10/16 12:00 | Adam Moundir v Sidane Pontjodikromo | 6-1,6-2 |
| ITF - M15 Doha | 2019/10/15 12:00 | Sidane Pontjodikromo v Vital Flurin Leuch | 6-2,6-4 |
| ITF - M15 Bad Salzdetfurth | 2019/10/09 09:00 | Sidane Pontjodikromo v Daniel Altmaier | 4-6,4-6 |
| ITF - M25 Falun | 2019/09/30 08:00 | Sidane Pontjodikromo v Arvid Nordquist | 6-7,4-6 |
| ITF - M25 Falun | 2019/09/29 08:00 | Sidane Pontjodikromo v Eric Davidsson | 6-7,6-1,10-5 |