Stadium: Court 4 Round: 28 Ground: Hardcourt outdoor
| ITF - M15 Sharm El Sheikh | 2019/11/22 08:00 | Lucas Hellfritsch v Luca Potenza | 7-6,7-5 |
| ITF - M15 Sharm El Sheikh | 2019/11/21 08:00 | Sidane Pontjodikromo v Lucas Hellfritsch | 5-7,6-2,2-6 |
| ITF - M15 Sharm El Sheikh | 2019/11/20 10:35 | Lucas Hellfritsch v Niklas Guttau | 6-4,6-3 |
| ITF - M15 Sharm El Sheikh | 2019/11/19 09:45 | Lucas Hellfritsch v Pelle Boerma | 6-7,6-4,11-9 |
| ITF - M15 Sharm El Sheikh | 2019/11/10 11:00 | Lucas Hellfritsch v Daniele Catini | 6-7,4-6 |
| ITF - M15 Antalya | 2019/10/23 08:30 | Ronald Slobodchikov v Lucas Hellfritsch | 6-3,6-3 |
| ITF - M15 Antalya | 2019/10/22 07:00 | Benedikt Emesz v Lucas Hellfritsch | 6-7,3-6 |
| ITF - M15 Antalya | 2019/10/21 07:00 | Augusto Virgili v Lucas Hellfritsch | 4-6,6-4,8-10 |
| ITF - M15 Sharm El Sheikh | 2019/11/22 08:00 | Ryan Nijboer v Zachary Eisinga | 6-3,3-6,7-5 |
| ITF - M15 Sharm El Sheikh | 2019/11/21 08:00 | Ryan Nijboer v Mariano Alberto Hasenkopf | 6-3,6-2 |
| ITF - M15 Sharm El Sheikh | 2019/11/20 08:00 | Ryan Nijboer v Damien Wenger | 7-5,6-0 |
| ITF - M15 Sharm El Sheikh | 2019/11/15 08:00 | Karim-Mohamed Maamoun v Ryan Nijboer | 6-3,6-3 |
| ITF - M15 Sharm El Sheikh | 2019/11/13 11:10 | Sagadat Ayap v Ryan Nijboer | 6-2,4-6,2-6 |
| ITF M25 Fort Worth | 2019/10/24 16:00 | Liam Broady v Ryan Nijboer | 6-2,2-6,6-2 |
| ITF M25 Fort Worth | 2019/10/22 17:00 | Ryan Nijboer v Evan Zhu | 6-4,2-6,6-3 |
| ITF M25 Waco | 2019/10/16 14:50 | Tadeas Paroulek v Ryan Nijboer | 4-6,7-6,6-1 |